EPDM bonded washers are a specific type of composite washer material commonly used in various industries, especially in roofing and construction applications. As a synthetic rubber, they are renowned for their excellent weather resistance, durability, and ability to withstand harsh environments.

EPDM bonded/ sealing washers typically consist of two main components:

Ethylene Propylene Diene Monomer (EPDM) Rubber: The sealing element of the washer is made from EPDM rubber, providing an effective and reliable seal. It is resistant to ozone, UV rays, extreme temperatures, and various chemicals, making it suitable for outdoor applications.

Metal Washer: The EPDM rubber is bonded to a metal washer, which is usually made of steel, aluminum alloy, or stainless steel. The metal washer provides stability and structural support to the rubber seal.

The primary function of EPDM bonded washers is in roofing and construction applications. When used after screw assembly, the pressure from screw tightening creates a waterproof seal. They are commonly used in metal roofing systems, roof screws, and other applications where weather-resistant sealing is crucial to prevent leakage.