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Topic: Waterglass in phosphate layer  (Read 385 times)

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Offline pcm81

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Waterglass in phosphate layer
« on: May 17, 2019, 02:49:09 PM »
As some of you might know, I've been playing with surface treatments for metals. Phosphate coating, Electroless Nickel, Black iron oxide.
I was looking for a good rust protecting agent to use in a vacuum chamber to suck into the coating.

Today it dawned on me: why not water glass?
So i wanted to shoot this idea by all of you to see if you can spot any holes in it. Basically the idea is to use sodium meta silicate solution in water that phosphated or black iron oxide coated part will be submerged in. In a vacuum chamber i suck the air out and let sodium meta silicate penetrate pores. Then, let the object drip and dry. Will this produce a layer of sodium glass in phosphate or magnetite coating OR will i see some sideways reactions happening between sodium silicate and the two coatings?

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