Surface protection for porous materials

Details Surface protection for porous materials Surface protection for porous materials

1976-07-22

1978-02-14

Hoffman, James R.

Coating processes

Coating pavement or the earth

427299, 427430B, B05D 312, B05D 136, B05D 310

Patent

active

040739724

ABSTRACT:
An improvement in the waterproofing of a shaped article having a porous surface by initially subjecting said surface to a hydromechanical treatment by impinging cold or hot water or steam under pressure thereon and thereafter impregnating the same with a liquid form organo silicon compound, said improvement comprising treating the surface with a basically acting substance before or during the impregnation.

REFERENCES:
patent: 3048499 (1962-08-01), Jellinek
patent: 3772065 (1973-11-01), Seiler
patent: 3819400 (1974-06-01), Plankl et al.

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