Product Description

Protein Free (Synthetic Polyisoprene) Natural Rubber

Protein Free (Synthetic Polyisoprene) Natural Rubber represents a synthetic polyisoprene which does not contain protein, which can cause allergic reactions in some cases.

All materials are made with FDA approved ingredients per 21CFR 177.2600. Light Tan in color. Made in the USA.

Samples available upon request.

Product Image

Key Aspects

Temperature Range:-40°F to +160°F
Durometer (Shore A ± 5):40
Tensile (psi.):2800
Elongation (%):600
Finishes Available:Smooth
Talc:Talc Present
Specification:

ASTM D 2000 M1AA

FDA Approved Ingredients per 21 CFR 177.2600

Compound Number(s)Part Number(s)
040R05260044227137004422740200442622170044262219
0044262221004426222200442622230044262224
0044262225004426222600442622270044262228
00442622290044262230

We comply with the Buy American Act requirements.

Advanced Technical Details

Durometer
Hardness
(Shore A ± 5)
Thickness
(inches)
Width
(inches)
Tensile
PSI
Ultimate
Elongation
Percent
Temperature
Range
Estimated Weight
Per Linear Foot
(1/8″ x 36″)
Specifications
40
040R0526
1/64 – 1/436, 482800600-40°F to +160°F1.91 lbASTM D 2000
M1AA 417,
FDA Approved Ingredients
per 21 CFR 177.2600

This material does not contain protein, which may cause allergic reactions

Compound Number: 040R0526

Unsure on how to read our compound number? Read the page, “How to Read a Compound Number”.

General Information for WARCO Sheet Rubber

Rubber Roll Width

Standard WARCO Sheet rubber rolls are untrimmed and can measure approximately 3” in additional width. Trimmed rolled rubber is provided either 36”, 48” or 55” wide ± 1”

Custom widths are available, please call for details.

Rubber Roll Lengths

Standard Roll approximate length ±10%. Products may vary, please see product listing for standard roll lengths.

Sheet Roll Lengths:

  • 1/64″ thick – 180 feet
  • 1/32” thick – 150 feet
  • 1/16” thick – 100 feet
  • 3/32” thick – 65 feet
  • 1/8” thick – 50 feet
  • 3/16” thick – 30 feet
  • 1/4” thick – 25 feet
  • 5/16” thick – 20 feet
  • 3/8” thick – 16.5 feet
  • 1/2” thick – 12.5 feet

Sheet Rubber Thickness Tolerances

Closer tolerances and Custom thicknesses are available and can be priced on request.

WARCO Thickness Tolerance – Standard RMA

  • 0.031” & thinner: ± 0.010″
  • 0.032″ to 0.061″: ± 0.012″
  • 0.062″ to 0.124″: ± 0.016″
  • 0.125″ to 0.186″: ± 0.020″
  • 0.187″ to 0.374″: ± 0.031″
  • 0.375″ to 0.500″: ± 0.047″
  • 0.501″ to 0.750″: ± 0.094″
  • 0.751″ & thicker: ± 10%

Sheet Rubber Finish

Unless otherwise noted, sheet rubber has a standard smooth finish. Textured (fabric) finish and matte finish are available on most materials at an additional cost. Please call for details.

Sheet Rubber Color

This product is light tan in color as opposed to the standard color of our sheet rubber, black. Custom colors and color matching is available.

Test Reports

Short form test results, basic physicals, are available upon request at the time of the order. Full test reports for particular specifications will be also quoted on request. This may include certifying the ozone resistance, heat ageing, compliances, and many more aspects of our product. Certifications are sent with your order upon request at no charge.

More information about the WARCO products is available at General Product Information.

Our rubber products are a proprietary blend of various polymers formulated to meet stated physicals and specifications. The named product polymer is not necessarily the primary polymer representing the highest percentage of the polymer blend. Determination of the suitability of the goods for the uses and applications contemplated by Buyer and others shall be the sole responsibility of the Buyer or user. No guaranty is given with respect to length of service on any particular application. Suggestions or recommendations made by Seller in its product literature concerning uses or applications of the goods are believed to be reliable, but Seller makes no warranty or guaranty of results to be obtained since the conditions of the use and application by Buyer and others are beyond Seller’s control. The specification listed here, ASTM, stands for the American Society for Testing and Materials which is the developer and provider of voluntary consensus standards, related technical information, and services. Their website can be found here: https://www.astm.org/. This specification, FDA Approved Ingredients per 21 CFR, refers to the inventory of substances authorized in Title 21 of the U.S. Code of Federal Regulations (21 CFR) for uses in contact with foods as illustrated by the Food and Drug Administration. The FDA is responsible for protecting public health by ensuring the safety, efficacy, and security of human and veterinary drugs, biological products, and more. This specification website can be found here: https://www.fda.gov/food/packaging-food-contact-substances-fcs/inventory-food-contact-substances-listed-21-cfr.

View complete Terms & Conditions of Sale for suitability of use and formulations

Other Natural Rubber Sheet Products

Pure Gum Floating Natural Rubber

  • Durometer: 40
  • Temperature Range: -40°F to +160°F
  • Specs: ASTM D2000 M1AA 417, FDA Approved Ingredients

EZ Cut Non-Floating Gum Natural Rubber

  • Durometer: 40
  • Temperature Range: -40°F to +160°F
  • Specs: ASTM D2000 M1AA

Tuff-Stuff® Natural Rubber

  • Durometer: 40
  • Temperature Range: -40°F to +160°F
  • Specs: ASTM M4AA

Natural Rubber (Black)

  • Durometer: 40 o 60
  • Temperature Range: -40°F to +160°F
  • Specs: ASTM D2000 M1AA