The Polyurea is an elastometric waterproofing membrane obtained by polyaddition (nucleophilic addition Ties = Pi-bonds greek removed by the formation of new covalent bonds) with aliphatic isocyanate addition of step_growth polymerization. The polymerization reaction is similar to that which leads to the formation of polyurethanes, in fact the Polyurea is a polyurethane terminated with amines, the latter accelerates the socket during the application (approx 5-15 sec.).
It has the advantage of having 0 shares volatile and thus the maximum respect for the environment, excellent tensile strength, flexibility and high abrasion resistance to high temperatures (30 ° -80 °). This is the reason for which the Polyurea is insensitive to water and moisture is given by the fact that the reaction between the two components “A” = iso and “B” = polyol (Polyammina) is so fast that the time does not give moisture to react.
Used both in the industrial and construction field
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