Brush Seals are made from polyproylene filaments packed densley together to prevent airborne particulates from passing.  Brush is wrappped around metal and kept in place by a crimped peice of metal called a spline.  The filaments will not hold water or freeze. Brush Seals prevent air and dirt contamination and have sound dampening properties. Ideal use for overhead garage doors, entry / exit doors, dock levelers, docks, etc.

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