Product Category

Why Our Graphite Sheets Are the Industry Standard

In today's demanding thermal management and electronic applications, finding a material that offers superior performance, reliability, and versatility is crucial. Our Graphite Sheets represent the pinnacle of engineered carbon materials, designed to meet the rigorous challenges of modern technology. These sheets are manufactured using high-purity natural graphite or advanced synthetic graphite processes, resulting in a material with exceptional thermal conductivity, electrical properties, and mechanical flexibility. Unlike traditional thermal interface materials (TIMs) like greases or pads, graphite sheets provide a solid-state solution that eliminates issues of pump-out, drying, or migration over time. They are an indispensable component for engineers and designers working in sectors where heat is the primary enemy of performance and longevity.

The unique layered structure of graphite allows for anisotropic properties, meaning it conducts heat exceptionally well in the planar direction (X-Y axis) while providing good electrical insulation through the thickness (Z-axis). This makes our graphite sheets ideal for spreading heat away from hot spots, such as CPUs, GPUs, power amplifiers, and LEDs, towards heat sinks or chassis walls. Their lightweight nature and conformability ensure excellent surface contact even on uneven surfaces, minimizing thermal resistance. Whether you are developing the next generation of smartphones, high-power LED lighting systems, automotive battery packs, or aerospace electronics, integrating our graphite sheets can lead to significant improvements in thermal performance, product reliability, and miniaturization.

Detailed Product Specifications and Parameters

To ensure you select the perfect graphite sheet for your application, we provide a comprehensive breakdown of our standard product parameters. Our sheets are available in various grades tailored for specific performance requirements, from standard commercial applications to high-reliability military and aerospace projects.

Standard Material Properties

Base Material: High-purity natural flake graphite or synthetic graphite
Color: Dark Gray to Black
Density: Ranges from 1.0 g/cm³ to 2.2 g/cm³ (customizable)
Continuous Use Temperature: -40°C to 400°C (in inert atmosphere), up to 550°C for short periods
Thermal Stability: Excellent dimensional and property stability across the temperature range
Flammability Rating: UL94 V-0 (for specific grades with treatments)
Chemical Resistance: Resistant to most solvents, acids, and bases; inert in many environments.

Performance Parameters Table

Property	Standard Grade	High-Performance Grade	Test Method / Conditions
In-Plane Thermal Conductivity	300 - 600 W/m·K	800 - 1,800 W/m·K	ASTM E1461, Laser Flash
Through-Plane Thermal Conductivity	5 - 20 W/m·K	10 - 30 W/m·K	ASTM E1461, Laser Flash
Thickness Range	0.05 mm - 3.0 mm	0.025 mm - 1.5 mm	Micrometer
Tensile Strength	> 4.0 MPa	> 6.5 MPa	ASTM D882
Compressibility	5 - 15%	7 - 25%	ASTM D575
Electrical Resistivity (In-Plane)	1.0 x 10^-5 Ω·m	8.0 x 10^-6 Ω·m	Four-Point Probe Method
Dielectric Strength (Through-Plane)	> 2.0 kV/mm	> 3.5 kV/mm	ASTM D149
Shore Hardness	10 - 30 (Type OO)	5 - 20 (Type OO)	ASTM D2240

Available Sizes and Customization

Standard Sheet Sizes: 300mm x 300mm, 500mm x 500mm, 600mm x 600mm
Roll Form: Available in widths up to 600mm and lengths up to 100 meters.
Die-Cutting: We offer precision die-cutting services to create custom shapes, gaskets, and pads with tight tolerances (±0.1mm).
Surface Treatments: Options include adhesive backing (acrylic or silicone), metal foil laminates (copper, aluminum), and silicone rubber coatings for enhanced handling and EMI shielding.

Frequently Asked Questions (FAQ)

Q: What are the primary advantages of using graphite sheets over traditional thermal pads or greases?
A: Graphite sheets offer several key advantages. Their in-plane thermal conductivity is significantly higher, often 5 to 10 times greater than silicone pads, allowing for highly efficient heat spreading. They are solid-state and dry, so there is no risk of pump-out, drying, or contamination over the product's lifetime, which is a common failure mode for greases. They are also much thinner and lighter, contributing to product miniaturization. Furthermore, they can be easily handled and die-cut without the mess associated with thermal greases.

Q: Are graphite sheets electrically conductive?
A: This is a critical distinction. Graphite sheets are highly electrically conductive in the planar (in-plane) direction. This means if a sheet bridges two electrical components on a circuit board, it could cause a short circuit. However, they act as an electrical insulator in the through-plane direction (through their thickness). For applications requiring electrical isolation, it is essential to use our sheets with a dielectric adhesive or laminate, or to ensure the sheet's placement does not create an electrical path between components.

Q: How do I handle and install graphite sheets?
A: Graphite sheets are flexible but can be delicate, especially in thinner gauges. It is recommended to handle them with clean gloves or tweezers to prevent contamination from skin oils. They can be easily cut with sharp scissors, blades, or die-cut. For installation, if the sheet does not have a pre-applied adhesive, a thin layer of thermally conductive but electrically insulating adhesive or a mechanical fixation method (clips, frames) can be used. Ensure the surfaces are clean and the sheet makes full, even contact for optimal thermal performance.

Q: Can graphite sheets be used in high-vibration or mechanically stressful environments?
A: While graphite sheets have good tensile strength for their weight, they are not as mechanically robust as metal shims. Under extreme vibration or repeated mechanical stress, thinner sheets could potentially tear. For such demanding environments, we recommend using our sheets with a reinforcing laminate, such as a copper or aluminum foil, or opting for a slightly thicker grade. The compressibility of the sheet also helps it absorb some mechanical shock and maintain contact under vibration.

Q: What is the operational lifetime of a graphite sheet?
A: When operated within their specified temperature and environmental limits, graphite sheets have an exceptionally long operational lifetime. As a purely carbon-based material, they do not degrade, harden, or outgas like polymer-based pads or greases. Their performance remains stable for the duration of the product's life, making them suitable for applications where long-term reliability is non-negotiable, such as in telecommunications infrastructure, automotive systems, and aerospace electronics.

Q: How does the thermal performance of graphite sheets compare to copper?
A: While copper has a high bulk thermal conductivity (around 400 W/m·K), our high-performance graphite sheets can exceed 1500 W/m·K in the in-plane direction, making them far superior for spreading heat across a surface. However, copper is isotropic (conducts equally in all directions) and has higher through-plane conductivity. Graphite sheets are also about 4-5 times lighter than copper and more flexible. The choice depends on the application: graphite is ideal for dissipating heat from a concentrated source, while copper is better for conducting heat through a thick structure.

Q: Are there any specific storage conditions for graphite sheets?
A: Graphite sheets should be stored in a cool, dry place away from direct sunlight and sources of ozone or strong oxidizing agents. They are generally stable, but to prevent any potential oxidation at the edges over very long periods, storage in their original packaging is recommended. Keep them flat to avoid creasing or permanent curling, especially for very thin sheets.

PTFE Sheets

PTFE Sheets: High-Performance Engineering Plastic for Demanding Applications

In the world of high-performance plastics, few materials match the unique combination of properties offered by PTFE sheets. Known for their exceptional chemical resistance, outstanding non-stick characteristics, and ability to perform across a wide temperature range, these sheets are a cornerstone material in countless industrial and commercial applications. With over seven decades of proven performance in the most challenging environments, PTFE sheets provide reliable, long-lasting solutions where other materials fail. This guide provides a comprehensive overview of PTFE sheet properties, specifications, and applications to help you select the right material for your specific needs.

What Are PTFE Sheets?

PTFE, or Polytetrafluoroethylene, is a synthetic fluoropolymer known for its remarkable inertness and low coefficient of friction. Fabricated into sheet form, it becomes a versatile engineering material used for gaskets, liners, bearings, and insulating components. The manufacturing process typically involves compression molding fine-powder resin, followed by sintering at high temperatures to create a dense, coherent sheet. The resulting material is semi-crystalline, offering an optimal balance of flexibility and strength.

Key Material Properties and Characteristics

Extreme Chemical Resistance: Virtually inert, resistant to almost all industrial chemicals and solvents, including strong acids, bases, and halogens.
Exceptional Heat Resistance: Continuous service temperature from -450°F (-268°C) to +500°F (+260°C), with short-term peaks up to 600°F (316°C).
Ultra-Low Friction: Possesses the lowest coefficient of friction of any known solid material, making it an excellent non-stick and low-wear surface.
Excellent Dielectric Properties: Outstanding electrical insulator, even at high frequencies and in harsh environments.
Non-Toxic and FDA Compliant: Suitable for use in food, beverage, and pharmaceutical processing applications.
Weather and UV Resistance: Unaffected by sunlight, ozone, and weathering, ensuring long-term outdoor performance.
Zero Water Absorption: Does not absorb moisture, maintaining dimensional stability in wet environments.

Standard PTFE Sheet Specifications and Dimensions

The following table outlines the standard specifications for virgin PTFE sheets available from leading manufacturers. Custom sizes and thicknesses can often be produced to meet specific application requirements.

Property	Standard Value	ASTM Test Method	Notes
Density	2.14 - 2.20 g/cm³	D792	Virgin, unfilled material
Tensile Strength	3,000 - 5,000 psi (20.7 - 34.5 MPa)	D638	Varies with manufacturing process
Elongation at Break	300 - 500%	D638	Indicates high ductility
Flexural Modulus	72,000 psi (500 MPa)	D790	Relatively flexible material
Izod Impact (notched)	3.0 ft-lb/in (160 J/m)	D256	Good impact resistance
Coefficient of Friction (Dynamic)	0.04 - 0.10	D1894	Against steel, very low
Melting Point	621°F (327°C)	D3418	Does not flow like a true thermoplastic
Thermal Conductivity	0.25 W/m·K	C177	Good thermal insulator
Dielectric Strength	500 V/mil (19.7 kV/mm)	D149	Excellent electrical insulator

Standard Sheet Sizes and Thicknesses

Standard Sheet Size	Available Thickness Range	Common Applications by Thickness
24" x 24" (610mm x 610mm)	1/64" (0.4mm) to 2" (50mm)	Thin: Shims, diaphragms. Thick: Machined parts, spacers.
36" x 36" (915mm x 915mm)	1/32" (0.8mm) to 3" (76mm)	Medium: Gaskets, liners. Thick: Bearings, wear plates.
48" x 48" (1220mm x 1220mm)	1/16" (1.6mm) to 4" (102mm)	General purpose for large fabrications, tank linings.
48" x 96" (1220mm x 2440mm)	1/8" (3.2mm) to 6" (152mm)	Industrial liners, large structural components.

Common Fillers and Their Benefits

Virgin PTFE can be compounded with various fillers to enhance specific properties for demanding applications. The table below summarizes common filler materials and their effects on PTFE performance.

Filler Type	Typical Loading (% by weight)	Key Benefits/Properties Enhanced	Common Applications
Glass Fiber	15% - 25%	Improved compression resistance, reduced cold flow, better creep resistance, increased stiffness.	Heavy-duty bearings, bushings, valve seats.
Carbon Graphite	15% - 25%	Enhanced wear resistance, improved thermal conductivity, better PV (Pressure-Velocity) limits.	Piston rings, dynamic seals, thrust washers.
Bronze	40% - 60%	Significantly improved thermal conductivity, greatly reduced wear, higher compressive strength.	Bearings for rotating equipment, gears, slides.
Molybdenum Disulfide (MoS2)	5% - 15%	Lower coefficient of friction, improved wear resistance, reduced stick-slip.	Applications requiring ultra-low friction.
Stainless Steel	30% - 40%	Substantial improvement in compression resistance, reduced deformation under load.	High-load bearing applications.

Frequently Asked Questions (FAQ) About PTFE Sheets

What is the maximum continuous service temperature for PTFE sheets?

The maximum continuous service temperature for virgin PTFE sheets is typically 500°F (260°C). For short-term exposure, it can withstand temperatures up to 600°F (316°C) without significant degradation. At the opposite end of the spectrum, PTFE remains flexible and functional down to cryogenic temperatures of -450°F (-268°C), making it suitable for applications involving liquid gases.

Can PTFE sheets be easily machined or fabricated?

Yes, PTFE sheets are known for their excellent machinability. They can be cleanly cut, drilled, turned, milled, and punched using standard metalworking or woodworking tools, though sharp, high-speed steel or carbide tools are recommended for the best finish. The material does not melt during machining but produces a pliable chip. It's important to account for its relatively high coefficient of thermal expansion when designing and machining parts to precise tolerances.

Are PTFE sheets suitable for food contact applications?

Yes, virgin (unfilled) PTFE is FDA compliant and meets USDA regulations for use in food processing equipment. It is non-toxic, odorless, and will not contaminate food products. This makes it ideal for applications such as conveyor belt liners, guide rails, bakeware release sheets, and components in food packaging machinery.

How does the chemical resistance of PTFE compare to other plastics?

PTFE offers one of the broadest chemical resistance profiles of any polymer. It is virtually inert to nearly all industrial chemicals, including strong acids (like sulfuric and nitric acid), strong bases (like sodium hydroxide), solvents, and oxidizing agents. The only known substances that can affect PTFE at elevated temperatures are molten alkali metals and certain fluorine compounds. This resistance far surpasses that of other common engineering plastics like Nylon, PVC, or Polypropylene.

What is "cold flow" or "creep" in PTFE, and how is it managed?

Cold flow, also known as creep, is the tendency of PTFE to slowly deform under a continuous mechanical load, even at room temperature. This is a characteristic of its viscoelastic nature. To manage cold flow in load-bearing applications, designers use techniques such as limiting stress levels, using thicker cross-sections, or specifying filled PTFE compounds. Fillers like glass, carbon, or bronze significantly improve compression resistance and reduce the rate of creep.

Can PTFE sheets be bonded or welded to other materials?

Bonding PTFE is challenging due to its non-stick, low-surface-energy properties. Standard adhesives do not adhere well. For successful bonding, the PTFE surface must first be treated using a specialized process like sodium etching (napthenate treatment) or plasma treatment to increase its surface energy. After treatment, epoxy or cyanoacrylate adhesives can be used. PTFE can also be heat-welded to itself, but this requires specialized equipment and expertise.

What are the key differences between PTFE and FEP or PFA sheets?

While PTFE, FEP (Fluorinated Ethylene Propylene), and PFA (Perfluoroalkoxy) are all perfluorinated polymers with excellent chemical resistance, they have distinct differences. PTFE has the highest continuous use temperature but cannot be melt-processed. FEP has a lower service temperature (around 400°F / 204°C) but can be injection molded and is transparent. PFA offers a service temperature closer to PTFE and can be melt-processed, making it suitable for complex molded parts and high-purity linings. PTFE generally offers the best overall value for sheet-based applications requiring extreme performance.

How should PTFE sheets be stored and handled?

PTFE sheets should be stored in a cool, dry place away from direct sunlight and heat sources. They should be stored flat to prevent warping or bending. While PTFE is chemically inert, it is a soft material and can be scratched, so care should be taken during handling to avoid surface damage. No special safety precautions are required beyond standard workshop practices, as it is a stable, non-reactive material.

What industries most commonly use PTFE sheets?

PTFE sheets are ubiquitous across many industries. Key sectors include Chemical Processing (for gaskets, seals, and linings in aggressive environments), Semiconductor Manufacturing (for high-purity components and wafer carriers), Food and Beverage (for non-stick surfaces and FDA-compliant parts), Aerospace (for wire insulation and low-friction components), Pharmaceutical (for equipment requiring easy cleaning and sterilization), and Automotive (for seals and bearings in transmissions and fuel systems).

Is there a difference in quality between extruded, molded, and skived PTFE sheets?

Yes, the manufacturing method impacts the sheet's properties. Molded sheets are created from resin powder compressed and sintered, offering good dimensional stability and homogeneity, ideal for machining. Skived sheets are shaved from a large, cylindrical molded billet, resulting in very smooth, uniform sheets with excellent surface finish, often used for seals and liners. The choice depends on the application's requirements for thickness tolerance, surface finish, and mechanical properties.

Synthetic Fiber Sheets

What are Synthetic Fiber Sheets?

Synthetic fiber sheets are engineered textile materials made from man-made polymers rather than natural sources. These sheets are produced through chemical processes, often derived from petroleum-based products, to create fibers that are then woven or non-woven into sheet form. They are known for their durability, versatility, and cost-effectiveness. Common types include polyester, nylon, acrylic, and polypropylene sheets, each offering distinct properties for various industrial, commercial, and household applications. Unlike natural fibers like cotton or wool, synthetic fiber sheets can be precisely engineered to meet specific performance criteria such as strength, moisture resistance, and thermal stability.

Key Features of Synthetic Fiber Sheets

High tensile strength and durability
Resistance to moisture, mildew, and chemicals
Lightweight and easy to handle
Customizable in terms of color, texture, and thickness
Excellent thermal and electrical insulation properties
Low maintenance and long-lasting performance

Product Parameters

The following table outlines the standard parameters for our synthetic fiber sheets, based on common industry specifications. Customizations are available upon request.

Parameter	Description	Typical Values
Material Type	Primary polymer used in the fiber	Polyester, Nylon, Polypropylene, Acrylic
Fiber Denier	Weight in grams per 9000 meters of fiber	1.5D to 20D
Sheet Thickness	Measured in millimeters or inches	0.1 mm to 5 mm
Weight per Unit Area	Mass per square meter (GSM)	50 GSM to 500 GSM
Color Options	Available standard and custom colors	White, Black, Grey, Custom Pantone shades
Tensile Strength	Resistance to breaking under tension	20 MPa to 100 MPa
Melting Point	Temperature at which fiber softens or melts	160°C to 260°C (depending on material)
Water Absorption	Percentage of water absorbed under standard conditions	0.1% to 4%
UV Resistance	Ability to withstand ultraviolet degradation	Excellent to Moderate (varies by material)
Applications	Common uses in various industries	Filtration, Geotextiles, Upholstery, Apparel, Automotive

Advantages of Using Synthetic Fiber Sheets

Superior strength-to-weight ratio compared to natural fibers
Enhanced resistance to environmental factors such as humidity and temperature fluctuations
Consistent quality and performance due to controlled manufacturing processes
Eco-friendly options available, including recycled synthetic fibers
Cost-efficient production and long service life reduce overall expenses
Versatility in applications, from heavy-duty industrial to delicate consumer products

Common Applications

Filtration media in air and liquid filtration systems
Geotextiles for soil stabilization and erosion control
Upholstery and bedding materials in furniture and mattresses
Automotive interiors, including seat covers and trunk liners
Protective clothing and technical textiles for various industries
Packaging materials for durable and lightweight solutions

Frequently Asked Questions (FAQ)

What are the main types of synthetic fiber sheets available?
The main types include polyester sheets, known for their strength and resilience; nylon sheets, which offer excellent abrasion resistance and elasticity; polypropylene sheets, valued for their chemical resistance and low moisture absorption; and acrylic sheets, which provide wool-like warmth and are often used in blankets and apparel. Each type has specific properties tailored to different applications, such as filtration, geotextiles, or upholstery.

How do synthetic fiber sheets compare to natural fiber sheets?
Synthetic fiber sheets generally offer greater durability, moisture resistance, and uniformity compared to natural fibers like cotton or wool. They are less prone to shrinking, stretching, or biodegradation. However, natural fibers may be preferred for their breathability and biodegradability in certain applications. Synthetic sheets can be engineered for specific performance traits, making them suitable for harsh environments where natural fibers might degrade.

Are synthetic fiber sheets environmentally friendly?
While traditional synthetic fibers are derived from non-renewable resources, many manufacturers now produce eco-friendly options, such as recycled polyester from plastic bottles or biodegradable synthetic blends. The production process can be optimized to reduce energy consumption and waste. Additionally, the longevity and recyclability of synthetic fiber sheets can contribute to a lower environmental footprint over their lifecycle compared to frequently replaced natural alternatives.

What factors should I consider when selecting a synthetic fiber sheet?
Key factors include the intended application (e.g., filtration, insulation, or clothing), required mechanical properties like tensile strength and elasticity, environmental conditions (exposure to UV light, chemicals, or moisture), and regulatory standards (such as fire resistance or food safety). It's also important to consider cost, availability, and customization options like color or thickness to ensure the sheet meets your specific needs.

Can synthetic fiber sheets be recycled?
Yes, many synthetic fiber sheets, particularly those made from polyester and polypropylene, are recyclable. They can be melted down and reprocessed into new fibers or products. However, the recyclability depends on the fiber type, contamination levels, and local recycling facilities. Some sheets are designed with closed-loop recycling in mind, reducing waste and supporting circular economy initiatives.

How do I maintain and clean synthetic fiber sheets?
Maintenance typically involves regular cleaning with mild detergents and water, avoiding harsh chemicals that could degrade the fibers. For industrial applications, periodic inspections for wear or damage are recommended. Most synthetic sheets are machine-washable or can be wiped clean, but always check the manufacturer's guidelines for specific care instructions to ensure longevity and performance.

What is the typical lifespan of synthetic fiber sheets?
The lifespan varies based on the material, application, and environmental conditions. In moderate use, such as in upholstery or apparel, synthetic fiber sheets can last 5 to 10 years or more. In harsh industrial settings, like filtration or geotextiles, they may require replacement every 1 to 5 years. Proper maintenance and selecting the right type for the application can significantly extend their service life.

Rubber Sheets

Introducing Premium Rubber Sheets for Industrial and Commercial Use

When it comes to resilient, durable, and versatile materials, rubber sheets are a go-to choice across numerous industries. From sealing applications to protective linings, these sheets offer exceptional performance under a wide range of conditions. Our high-quality rubber sheets are engineered to meet rigorous standards, ensuring reliability and longevity. Whether you are in manufacturing, construction, or automotive sectors, understanding the specifications and benefits of our rubber sheets can help you make an informed decision for your projects.

Key Features of Our Rubber Sheets

High Tensile Strength: Resists tearing and stretching under heavy loads.
Excellent Abrasion Resistance: Ideal for high-wear environments.
Superior Weather and Ozone Resistance: Performs well outdoors and in harsh climates.
Chemical Resistance: Withstands exposure to oils, acids, and other chemicals.
Flexibility and Elasticity: Maintains shape and function under dynamic stress.
Easy to Cut and Fabricate: Can be customized to fit specific application needs.

Detailed Product Parameters

To help you select the right rubber sheet for your needs, we have outlined the key parameters in the table below. These specifications are critical for ensuring compatibility with your operational requirements.

Parameter	Description	Available Options / Range
Material Type	The base compound used in the rubber sheet, which determines its core properties.	Natural Rubber (NR), Neoprene (CR), Nitrile (NBR), EPDM, Silicone (VMQ), Butyl (IIR)
Hardness (Shore A)	Measures the resistance to indentation, indicating softness or firmness.	30A to 90A
Tensile Strength	The maximum stress the material can withstand while being stretched.	Up to 3000 PSI
Elongation at Break	The percentage increase in length before the material breaks.	100% to 700%
Thickness	The gauge of the sheet, critical for sealing and gasket applications.	1/32" to 2" (0.8mm to 50mm)
Width	The standard width of the sheets as supplied.	48" (1219mm)
Length	The standard length per roll or sheet.	50 ft (15.24m) rolls or custom-cut sheets
Color	Available colors for identification or aesthetic purposes.	Black, White, Red, Blue, Green, Custom (upon request)
Temperature Range	The operational temperature limits the material can endure.	-60°F to 400°F (-51°C to 204°C), depending on material
Specific Gravity	Density relative to water, affecting weight and buoyancy.	1.1 to 1.9

Applications of Rubber Sheets

Gaskets and Seals: Used in automotive, plumbing, and industrial machinery to prevent leaks.
Conveyor Belt Linings: Protect belts from wear and impact in material handling.
Sound Dampening: Reduce noise and vibration in appliances and equipment.
Flooring and Matting: Provide anti-slip, cushioned surfaces in commercial and industrial settings.
Protective Covers and Pads: Shield surfaces from scratches, moisture, and corrosion.
Expansion Joints: Accommodate movement in construction and infrastructure projects.

Material-Specific Properties

Different rubber materials offer unique advantages. Here is a quick guide:

Material	Key Advantages	Ideal Applications
Natural Rubber (NR)	High elasticity, excellent abrasion resistance, good tensile strength.	Tires, shock absorbers, conveyor belts.
Neoprene (CR)	Good weather, ozone, and flame resistance; moderate oil resistance.	Outdoor gaskets, wetsuits, hose covers.
Nitrile (NBR)	Superior resistance to oils, fuels, and chemicals; good compression set.	Fuel hoses, gaskets in oil environments, O-rings.
EPDM	Excellent weather and ozone resistance; good steam and water resistance.	Roofing membranes, automotive seals, radiator hoses.
Silicone (VMQ)	Wide temperature range, flexible at low temps, inert and non-toxic.	Food processing, medical devices, high-temperature gaskets.
Butyl (IIR)	Excellent air and gas impermeability, good vibration damping.	Inner tubes, pharmaceutical stoppers, pond liners.

Frequently Asked Questions (FAQ) About Rubber Sheets

What are the main types of rubber sheets available?
The primary types include Natural Rubber (NR), Neoprene (CR), Nitrile (NBR), EPDM, Silicone (VMQ), and Butyl (IIR). Each type is formulated with specific properties to excel in different environments. For instance, Nitrile is renowned for its oil and fuel resistance, making it ideal for automotive and industrial sealing applications, while EPDM is preferred for outdoor use due to its excellent weather and ozone resistance.

How do I choose the right hardness for my application?
Hardness, measured on the Shore A scale, should be selected based on the required sealing pressure, flexibility, and compression. Softer sheets (lower Shore A, e.g., 30A-50A) are better for forming tight seals on irregular surfaces and for vibration damping. Harder sheets (higher Shore A, e.g., 70A-90A) offer greater resistance to extrusion and are suitable for high-pressure gaskets and heavy-duty abrasion applications.

What is the significance of tensile strength and elongation at break?
Tensile strength indicates how much pulling force the rubber sheet can withstand before tearing, which is crucial for dynamic applications like belts or expansion joints. Elongation at break measures how much the material can stretch before failure, indicating its flexibility and toughness. A high elongation percentage is often desirable for applications where the material needs to stretch and recover without cracking.

Can rubber sheets be customized in size and shape?
Yes, absolutely. Our rubber sheets can be custom-cut to specific dimensions, shapes, and profiles to meet your exact requirements. We offer die-cutting, laser cutting, and waterjet cutting services to ensure precise fabrication for gaskets, seals, pads, and other components. Simply provide your technical drawings or specifications.

How does temperature affect the performance of a rubber sheet?
Each rubber material has a specific operational temperature range. Exceeding this range can cause the material to become brittle at low temperatures or soften and degrade at high temperatures. For example, Silicone rubber can perform in extremes from -60°F to 400°F, whereas Natural Rubber has a narrower range and is not suitable for high-heat applications. Always check the temperature rating for your specific environment.

Are these rubber sheets resistant to chemicals and oils?
Chemical resistance varies significantly by material. Nitrile (NBR) rubber offers excellent resistance to oils, fuels, and many chemicals. Neoprene provides moderate oil and chemical resistance. For aggressive chemicals or specific fluids, it is essential to consult a chemical compatibility chart or contact our technical team to recommend the most suitable material for your exposure conditions.

What is the standard lead time for orders?
For standard sheet sizes and materials, we typically ship within 3-5 business days. Custom-cut orders may require additional time based on complexity and volume, generally 7-10 business days. Rush services are available for urgent projects; please inquire for specific timing.

How should I store rubber sheets to maintain their properties?
Store rubber sheets in a cool, dry, and dark place away from direct sunlight, ozone sources (like electric motors), and extreme temperatures. Keep them away from chemicals, oils, and solvents. Ideally, store them flat or on a roll to prevent permanent creasing or deformation. Proper storage can significantly extend the shelf life of the material.

Do you offer technical support for material selection?
Yes, we have a dedicated technical support team with extensive experience in rubber material science. We can assist you in selecting the optimal material based on your application requirements, including exposure to environmental factors, mechanical stresses, and regulatory standards. Feel free to provide your application details for a personalized recommendation.

About Us

Ningbo Kaxite Sealing Materials Co., Ltd.

Ningbo Kaxite Sealing Materials Co., Ltd. is based in Ningbo, Zhejiang Province, China. Kaxite is one of the biggest sealing and heat preservation products manufacturer in China. Kaxite supply the overall solution of Metal Gaskets, Non-metallic Gaskets, Braided Packings, Compressed Gasket Sheets. To assure create more valve for customers from all over the world.

Kaxite has been found and conformed according to ISO 9001, As a professional manufacturer and supplier, Kaxite can offer a widely range of sealing raw materials and products,more competitive price, prompt feedback, fast delivery time & keep the order updated. We promise Kaxite Gasket & Seals is your good choice.

The products are mainly applied in the industries of aviation, shipbuilding, petroleum chemical industry, foodstuff and medicine, with the good merits of heat preservation, heat insulation, seal and insulation.A. Industrial Gaskets

News

06 15 24

Why is PTFE banned? PFAS cause contamination in soils and drinking water, among other things, and there is justified concern that these issues are increasing due to the persistence of these substances. Some PFASs are classified as persistent, bioaccumulative and/or toxic.View More >>

06 15 24

What is PTFE material used for? What are the main applications of PTFE? One of the common applications of this polymer is non-stick coating in kitchen cookware (pans, baking trays, etc.). PTFE is used as a cost-effective solution for oil & gas, chemical processing, industrial, electrical/electronic, and construction sectors.View More >>

06 15 24

What is a PTFE sheet used for? In electricals, because PTFE sheets are also a great provider or electrical insulation, they can also be used as electrical cord and wire wrapping. In the chemical industry, the sheeting can be used to make several different fluoropolymer products, from gaskets, rings and washers to vessel linings and chemical tanks.View More >>

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