Waterproof roof covering based on polyisocyanates and glass fitting and method for producing the same.

摘要

Roof-sealing coating comprising a mixture based on polyisocyanate resins crosslinked with polyamines and a composite reinforcement consisting of a glass grid surmounted by a glass cloth, it being possible for this mixture to contain in addition: - 25 to 40 % by weight, relative to the weight of polyisocyanates and polyamines, of plasticisers, and/or - 5 to 20 % by weight, relative to the organic binder consisting of the polyisocyanates, polyamines and plasticisers, of inorganic pigments, and/or - 25 to 55 % by weight, relative to the organic binder defined above, of inorganic flours, characterised according to the invention in that the mixture contains 0.05 to 1.0 % by weight relative to the organic binder defined above, of one or more deflocculating wetting agents consisting of salts of polyaminamides and of acid esters. Process for the manufacture of such a coating.