Multishield is a composite material containing excellent EMI shielding with an efficient environmental seal. The material is manufactured with a matrix of wires embedded in silicone rubber and aligned perpendicular to the contact surfaces. Monoshield is intended for applications where the gasket is limited to 0.02 in. thickness and gap irregularities do not exceed 0.003 in. The material consists of a fine monel or aluminum which is expanded (as per MIL-S-46044) and impregnated with a 50 durometer silicone rubber. The manufacturing process exposes approximately 225 points of contact per square inch to provide an efficient EMI shield with a pressure seal good up to 50 PSI between mating surfaces. These gaskets should not be re-used after having been compressed.Weaveshield is a composite EMI shielding and pressure seal gasket material used for very small gaps having a joint unevenness of no more than 0.002 in. The material is comprised of a woven aluminum wire screen impregnated with either a neoprene or silicone elastomer. A closing force of 70 to 110 PSI is recommended to obtain a moisture seal. Under favorable conditions, a pressure seal can be obtained. Weaveshield can be supplied in sheets or die cut gaskets.
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Tech-Etch is a global supplier of EMI shielding products for the commercial and military markets. A leader in the RF shielding field for over 40 years, Tech-Etch designs and manufactures both standard catalogue and customized shielding products.
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