Metal salt solution for use as a reacting solution and method for using same
AssigneeAmerican Spray Coatings
InventorsAkihiro Takahagi, Yuji Kanomata
Life of this patent
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Abstract
A metal salt solution containing about 6.0 g to about 25 g of sodium hydroxide, about 20 g to about 70 g of ammonia and about 2 g to about 20 g of silver nitrate per 1 liter of water for use as a metal salt solution for forming a metallic mirror surface on a receiving surface is shown. The receiving surface is treated with an activating treatment agent containing stannous chloride and at least one precious metal salt of palladium, gold, silver or the like followed by a concurrent application of the above reacting metal salt solution and reducing agent solution to form a metallic mirror surface on the receiving surface.
Claims4
A method for forming a metallic mirror surface on an receiving surface comprising the steps of:
- cleaning the underlay surface to be coated with a metallic mirror surface;
- spraying on the receiving surface an activating treatment agent solution wherein said an activating treatment agent solution contains a hydrochloric acid solution including about 10 cc to about 44 cc of hydrochloric acid, about 1.5 g to about 5 g of stannous chloride and about 0.001 g to about 0.005 g of a precious metal salt of at least one of a silver nitrate, palladium chloride, gold chloride and platinum chloride per 1 liter of water for use as an activating treatment agent for forming a metallic mirror surface on a receiving surface wherein said receiving surface is treated with said hydrochloric acid solution as an activating treatment agent solution;
- and
- separately spraying concurrently on the underlay surface having said activating treatment agent solution a reacting metal salt and a reducing agent to form the metallic mirror surface.
Dependencies are inferred from the claim text.