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化學(xué)配方數(shù)據(jù)庫(kù)
配方類(lèi)型： COATINGS
配方說(shuō)明： Coating for Copper or Brass
配方組成： Conc. ammonium hydroxide/9
"Carboset" 525 resin/90
Demineralized water/501
"Cobratec" TT 100/3
配制方法： Heat the water to 120F, and add the ammonium hydroxide. The add the "Carboset" 525 with moderate agitation to avoid foaming. Maintain a pH of 8.0 to 8.5 until the resin dissolves. Cool and add the "Cobratec" and stir to uniformity.
Note: Small amounts of "Cobratec" in "Carboset" coatings prevent greening of copper and brass surfaces and also improve the corrosion resistance of the coating.

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