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US5560773A Penetrating sealant composition 失效
渗透密封胶组成

Penetrating sealant composition
摘要:
A penetrating sealant for use with cured silica-containing materials such as cement or concrete, the composition comprising a mixture of an alkali metal silicate, preferably lithium silicate, a cationic fluorinated surfactant, a non-ionic surfactant and water.
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