DESCRIPTION: Standard MESH STRIP gasketing with elastomer core consists of two layers of wire mesh knitted around a rectangular or round core of neoprene or silicone. The knitted wire mesh provides the electrical conductivity for EMI/EMP shielding, and the core provides excellent compressibility with a high degree of resilience. Closing force is in the 50-100 psi (0.34-0.69 MPa) range. Elastomer core MESH STRIP gasketing does not provide pressure sealing, but it does provide a seal against dust, rain, ventilating air and other limited environmental conditions. The standard wire materials are monel (a nickel-copper alloy) and Ferrex** (tin-plated, copper-clad steel). Other metals and alloys such as aluminum mesh are available. Monel is used most frequently due to its good aging properties, excellent tensile strength and spring-like qualities. Ferrex offers the best EMI shielding performance, especially in H-fields, but has limited corrosion resistance.
**Ferrex is Chomerics' tin-plated, copper-clad steel wire per ASTM B-520. ASTM (QQ-W-343) tin-plate, 2-3% by weight; ASTM B-227 copper-cladding 30-40% by weight, SAE 1010 steel wire, balance by weight.
