Polymex P-4023 Standard Polyurethane System
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The existing substrate must be free of dirt, rust, moisture, and grease. A primer is applied to the prepared substrate. Following this application, black SBR or black EPDM granules of 1–3.5 mm, mixed with a polyurethane binder in a dedicated mixer, are spread at an average thickness of 8 mm using a paving machine. A primer is then applied over this elastic layer, and 7 mm thick colored EPDM granules are spread to complete the standard system EPDM coating.
