Coating composition for metal substrates

Coating composition for metal substrates

  • CN 101,668,821 A
  • Filed: 04/16/2008
  • Published: 03/10/2010
  • Est. Priority Date: 04/19/2007
  • Status: Active Application
First Claim
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1. one kind is suitable for applying the metal base of waiting to make and cover with paint, lacquer, colour wash, etc., the coating composition of preferred steel substrate, described composition comprises (i) zinc powder and/or zinc alloy and the (ii) silicon sol of modification, it is the colloidal silica particle of one or more silane compound modification of 6-40 weight % that described silicon sol comprises the gross dry weight of using based on silane compound and colloidal silica particle, and can by with described silane compound per hour to be not more than every nm 2Obtain in the speed adding silicon sol of 20 silane molecules in colloidal silica surface.

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