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The USA INDUSTRIALS BULK-RS-S40-25 is a stock-length silicone rubber sheet used as a general-purpose gasketing, sealing, and cushioning material in HVAC, plumbing, and industrial applications. Cut from solid silicone compound, it measures 12 inches wide by 12 inches long and carries a Shore A durometer rating of 35 to 45, placing it in the soft-to-medium firmness range. The sheet handles a continuous service temperature range of -60 degrees F to 500 degrees F and delivers a tensile strength of 650 psi, making it suitable for environments with wide thermal cycling or moderate mechanical stress.
This silicone rubber sheet is used wherever a flexible, heat-resistant seal or pad is needed. Common applications include custom-cut gaskets for HVAC access panels, duct flanges, pump housings, and electrical enclosures. Its soft durometer and temperature range make it a practical choice for residential and light commercial mechanical rooms, as well as industrial maintenance settings where technicians fabricate replacement seals on site.
Designed as a general-purpose silicone rubber sheeting material suitable for custom gasket and sealing applications across HVAC, plumbing, and light industrial equipment where silicone compound is an appropriate material choice.
Silicone rubber sheet is typically cut to shape by HVAC technicians, plumbers, or industrial maintenance personnel using a sharp utility knife, gasket punch, or die-cutting tool. Surfaces should be clean and free of oil, grease, and old gasket material before the new seal is installed. Confirm that silicone is chemically compatible with any fluids or gases the sheet will contact before installation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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