Two-component self-levelling polyurethane sealant for ...
2018-6-28 · Mapeflex PU21 is a two-component, self-levelling sealant composed of a polyurethane polymer, free from isocyanates (part A), and a special hardener (part B). The two components must be mixed together thoroughly to obtain a self-levelling, evenly coloured smooth paste that is easy to pour. Mapeflex PU21 can only be applied to horizontal surfaces.
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