KÖSTER ECB Membranes are made of a mixture of Ethylene Copolymer and a special bitumen. KÖSTER ECB Membranes are watertight, chemically resistant, and resistant to stress cracking. KÖSTER ECB Membranes are UV-stable, resistant to aging, and microorganisms and can be applied directly to bituminous roofs.
KÖSTER ECB U are unreinforced homogeneous ECB Membranes for the creation of drainage and ventilation flanges and corner reinforcements.
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