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Polyurethane sealant composition is a primer non-requirement for the performance of the glass and paint
Polyurethane sealant composition is a primer non-requirement for the performance of the glass and paint
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机译:聚氨酯密封胶组合物是底漆,对玻璃和油漆的性能无要求
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摘要
In one aspect, this invention is a composition comprising a urethane prepolymer having isocyanate moieties; a catalytic amount of a compound which catalyzes the reaction of isocyanate moieties with water or an active hydrogen containing compound; alpha hydrocarbyl silane compound; and a catalytic amount of a compound which catalyzes silanol condensation. The composition of the invention can be used to bond a window into a structure without the need to prime the window or the window flange of the structure.
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