Product Description

INFINISIL? Fiberglass Inserted Silicone is preferred where dimensional stability from mechanically reinforced silicone sheet rubber is required. It is resistant to extreme high and low temperature ranges and is proven to be an excellent gasketing material. With increased tensile strength from fiberglass reinforcement may be used in belting and diaphragm applications.

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Key Aspects
Temperature Range:-80°F to +450°F
Durometer Range (Shore A ± 5):40 to 80
Tensile Range (typical psi.):750 to 800
Elongation Range (typical %):300 to 450
Finishes Available:Smooth, Nylon*
Talc:Talc Free Available
Primary Feature:Fiberglass Insert

*Nylon Finish Always Talc Free

We comply with the Buy American Act requirements.

Advanced Technical Details
(Shore?A ±?5)
Tensile (psi)Ultimate
Elongation (%)
Estimated Weight
Per Linear Foot
(1/8" x 36")
40040S0842Rolls: 1/32 - 1/4
Molded Sheets: Up to 4
36, 48---750---4502.36 lb
50050S0843Rolls: 1/32 - 1/4
Molded Sheets: Up to 4
36, 48---750---4002.46 lb
60060S0844Rolls: 1/32 - 1/4
Molded Sheets: Up to 4
36, 48---800---3502.63 lb
70070S0845Rolls: 1/32 - 1/4
Molded Sheets: Up to 4
36, 48---800---3002.59 lb

Compound Number: 040S0842, 050S0843, 060S0844, 070S0845

Fiberglass Fabric Physicals
WeaveCountWeightThicknessBreaking StrengthSpecification
Plain28 x 2011.8?oz per?sq?yd0.013"525 x 375MIL-Y-1140H Class?C Form?4
Roll Width: 36″ , 48″
Molded Sheet Size: 36″ x 36″ , 48″ x 48″
Trim: Untrimmed
Color: Black
Stock Item Minimum: One Foot
Non Stok Item Minimum: One Roll
Customize This Product To Meet Your Application

INFINISIL? is a registered trademark of West American Rubber Company, LLC.

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.

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

Other Nitrile Sheet Rubber Products

INFINISIL? Performance Silicone

  • Durometer: 40 to 80
  • Temperature Range: -80°F to +450°F
  • Primary Feature: High & Low Temperature Resistance, Excellent Weathering Resistance

INFINISIL? Spec-Grade Performance Silicone

  • Durometer: 40 to 70
  • Temperature Range: -80°F to +450°F
  • Specs: A-A-59588 2A & 2B AMS 3301 – 3304 ASTM D2000 M1GE

INFINISIL? FDA Performance Silicone

  • Durometer: 40 to 80
  • Temperature Range: -80°F to +450°F
  • Specs: FDA approved ingredients per 21 CFR 177.2600
View All Silicone Sheet Rubber Products