China EPDM Sheet Manufacturers, Suppliers and Factory - Customized EPDM Sheet

EPDM Rubber Sheets for Industrial Sealing & Insulation

EPDM rubber sheets provide durable sealing, insulation, cushioning, and protection for industrial and outdoor applications. flexmer supplies solid EPDM sheets and rolls in customized thicknesses, widths, hardness levels, surface finishes, and cut sizes, supporting applications across automotive, construction, HVAC, electrical, transportation, and general industrial equipment.

EPDM Rubber Sheet White
White EPDM rubber sheet is suitable for outdoor sealing, isolation, cushioning, and protection; it offers excellent weather resistance, ozone resistance, and water resistance, as well as good...

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EPDM Rubber Sheet Membrane
EPDM Rubber Sheet Membrane is a vulcanized EPDM rubber sheet available in different hardness grades, thicknesses, formulations, and reinforced constructions for specified material requirements.

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EPDM Rubber Sheet Gasket
EPDM Rubber Sheet Gasket is a vulcanized EPDM sealing material supplied as sheets or custom-cut gaskets for static sealing of pipes, equipment, enclosures, and industrial connections.

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EPDM Rubber Sheet for Roof
EPDM Rubber Sheet for Roof is an EPDM rubber waterproofing membrane made with regenerated rubber, supplied in roll form for continuous roof coverage.

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EPDM Sheet Products

EPDM Rubber Sheet White

White EPDM sheets for applications requiring a clean surface appearance, specific color requirements, or selected food-contact-compatible formulations.

EPDM Rubber Sheet Membrane

Flexible EPDM sheet materials for waterproofing, lining, protection, and other large-area applications.

EPDM Rubber Sheet Gasket

EPDM sheet material designed for gasket fabrication, connection sealing, equipment sealing, and custom-cut components.

EPDM Rubber Sheet for Roof

EPDM sheet and membrane solutions for roofing and waterproofing applications requiring long-term outdoor weather resistance.

Technical Specifications

Parameter	Production Capability & Technical Standard
Base Polymer	100% Virgin EPDM (Dow Keltan / Enichem base)
Sheet Structure	Solid EPDM Sheet / Fabric-Inserted (1-Ply, 2-Ply Nylon or Polyester)
Hardness Range	40–90 Shore A (±5 Shore A)
Thickness Range	1–12 mm: Rotocure Continuous Vulcanization \| 13–100 mm: Platen Press Molding
Standard Width	Up to 2,000 mm; custom slitting available down to 10 mm strips
Thickness Tolerance	ISO 3302-1 Class ST1 / ST2, according to thickness and production method
Surface Finish	Smooth / Cloth-Impression (Textured) / Embossed
Operating Temperature	Standard: -40°C to +120°C \| Selected Peroxide-Cured Grades: -50°C to +150°C
Tensile Strength	4–12 MPa, depending on compound formulation
Color Options	Standard Black, White (FDA-Grade Option), Grey
Downstream Converting	Die Cutting, Strip Slitting, Adhesive Backing (3M 9448A / 4229P)
Compliance	RoHS, REACH, FDA (21 CFR 177.2600), UL94 V-0 (On Request)

Applications of EPDM Rubber Sheet

Industry	Typical Applications	EPDM Sheet Function
Automotive	Gaskets, seals, insulation pads	Sealing / Insulation
Construction	Roofing, waterproofing, expansion joints	Weatherproofing
HVAC	Duct gaskets, equipment seals	Sealing / Vibration Isolation
Electrical	Insulation pads, protective layers	Electrical Insulation
Industrial	Machine gaskets, liners, protective pads	Sealing / Protection
Transportation	Vehicle gaskets, vibration pads	Sealing / Cushioning
Marine	Hatch seals, protective liners	Weather & Water Resistance

Manufacturing Process

Precision EPDM Compounding
Virgin EPDM is compounded with reinforcing fillers, processing additives, and sulfur- or peroxide-based curing systems to achieve the specified hardness, tensile strength, flexibility, and temperature resistance.

Calendering & Fabric Reinforcement
Multi-roll calendering controls sheet thickness and surface consistency. Nylon, polyester, or cotton reinforcement can be inserted between rubber layers when higher tear strength or dimensional stability is required.

Dual-Method Vulcanization
Continuous Rotocure Vulcanization: Used for 1–12 mm sheet rolls, providing continuous production, uniform curing, and consistent surface quality.
Platen Press Molding: Used for 13–100 mm heavy-duty sheets, providing controlled thickness, density, and curing uniformity through the sheet.

In-Line Thickness & Dimensional Control
Non-contact laser gauges continuously monitor sheet thickness during production. Process data is checked against specified dimensional tolerances, with ISO 3302-1 ST1/ST2 requirements applied where applicable.

Slitting, Cutting & Finishing
Master rolls can be slit to specified widths or converted into cut sheets, rubber strips, gaskets, and other application-ready components. Adhesive backing and other finishing options are available according to project requirements.

Custom EPDM Sheet Dimensions & Converting

EPDM sheets can be manufactured to specified thicknesses, hardness levels, widths, lengths, and surface finishes. We also provide downstream converting services for customers requiring ready-to-use strips, gaskets, pads, or die-cut components.

Dimensional Options

Thickness: 1–100 mm, depending on material grade and production requirements
Width: Up to 2,000 mm
Roll Length: Standard or customized according to thickness and handling requirements
Hardness: 40–90 Shore A
Thickness Tolerance: Controlled according to specified thickness and application requirements
Color: Black, white, grey, or custom colors

Surface & Structure

Smooth surface
Textured or embossed surface
Fabric-inserted EPDM
Custom surface treatments
Solid EPDM sheet structures

Cutting & Converting

EPDM sheets can be supplied as raw material or converted into application-ready components:
Slit rolls
Cut-to-length sheets
Rubber strips
Gaskets
Sealing pads
Die-cut components
Custom shapes based on drawings or samples

Why Choose Us

20+ Years of Polymer Engineering Excellence

Since 2002, we have specialized in high-performance polymer solutions for automotive, industrial, electrical, and other demanding applications. Operating a 20,000 m² modern manufacturing facility, we serve 50+ Tier-1 suppliers and global brands with established engineering and quality-control systems.

ISO 9001 & IATF 16949 Certified Quality

Certified under ISO 9001 and IATF 16949, with advanced inspection equipment and controlled production processes supporting dimensional accuracy, material consistency, and full batch traceability from raw material to dispatch.

Fast-Track OEM & Custom Prototyping

From 2D/3D CAD data to functional prototype samples in as fast as 5–7 business days. Our engineering team supports custom material selection, tooling development, prototyping, and production for NBR, EPDM, FKM, Silicone, PU, and other elastomeric materials.

Packaging & Logistics

Delivery Forms: Rolls, sheets, cut lengths, or custom-cut parts

Packaging: Plastic film, PP woven bags, cartons, pallets, or export wooden cases

Custom Labels: OEM labels, product identification, and batch information available

Shipping: Sea, air, express, and other international delivery options

Trade Terms: EXW, FOB, CIF, DAP, and DDP available

Lead Time: Confirmed according to material grade, dimensions, order quantity, and converting requirements

FAQ

Q: What thicknesses of EPDM rubber sheet can you supply?

A: We can supply EPDM sheets in a broad thickness range, typically from 1–100 mm, with the practical range determined by the required sheet structure, hardness, dimensions, and application.

Q: Can you control EPDM sheet thickness tolerance?

A: Yes. Thickness and width are controlled during production according to the specified material grade and customer requirements. Tolerance requirements can be confirmed based on the final application and sheet thickness.

Q: What hardness range is available for EPDM sheets?

A: Typical EPDM sheet hardness ranges from 40–90 Shore A. Custom hardness can be developed for applications requiring specific compression or flexibility characteristics.

Q: What are the maximum sheet width and roll length?

A: EPDM sheets can be supplied in widths of up to approximately 2,000 mm, with roll lengths configured according to thickness, production conditions, handling, and customer requirements.

Q: Can EPDM sheets be supplied with different surface finishes?

A: Yes. Smooth, textured, embossed, and fabric-backed surfaces are available depending on the intended application.

Q: Can you cut EPDM sheets into custom gaskets?

A: Yes. We can slit, cut, punch, and die-cut EPDM sheets into custom gaskets, strips, pads, and other shapes according to drawings or samples.

Q: Can EPDM rubber sheets be reinforced with fabric?

A: Yes. Fabric insertion is available for applications requiring increased dimensional stability, mechanical strength, or reduced deformation.

Q: Are EPDM sheets suitable for outdoor applications?

A: Yes. EPDM is widely used for outdoor sealing and waterproofing because of its resistance to weathering, ozone, UV exposure, and temperature cycling.

Q: Can you provide custom EPDM formulations?

A: Yes. Material formulations can be adjusted for requirements such as hardness, compression set, temperature resistance, flame retardancy, and specific application conditions.

Q: What information is required for an EPDM sheet quotation?

A: Please provide the required thickness, tolerance, hardness, sheet or roll width, length, surface finish, color, application, quantity, and cutting requirements. Drawings or samples are recommended for custom-converted parts.

We're known as one of the most reliable EPDM sheet manufacturers and suppliers in China. With abundant experience, we warmly welcome you to buy customized EPDM sheet at competitive price from our factory. If you have any enquiry about cooperation, please feel free to email us.