B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/187
B05D 5/00 (2006.01) B05D 7/12 (2006.01) B05D 7/24 (2006.01) C04B 41/49 (2006.01) C09D 183/04 (2006.01) C09K 3/18 (2006.01)
Patent
CA 2032736
SI-004 SILICONE TREATMENT OF POROUS SUBSTRATES ABSTRACT OF THE DISCLOSURE In accordance with the present invention there is provided a water repellency system and a method for its application on a porous substrate. The system comprise a low viscosity polydiorganosiloxane which is characterized in having reactive end-groups and a cross-linking agent therefor. Additionally, the system is characterized in that it is free from catalysts and or fillers. Upon its application to a porous substrate, the water repellency system of the invention penetrates the pores and then cures to form a protective film which resists the formation of efflorescence. The film thus formed is characterized by its good adherence to the protected substrate. SI-004
Black Janine N.
Conradi Richard R.
de Witte Hans
Kutzer Kenneth B. Jr.
Naumann Thomas H.
Mobay Corporation
Swabey Ogilvy Renault
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