Why does paint change colour as it dries?

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Owen Hill

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Why does paint change colour as it dries?
« on: 22/02/2010 11:30:02 »
Owen Hill  asked the Naked Scientists:
   
Hello Naked Scientists!

My wife and I are painting the ceilings in our house, and the ceiling paint we are using goes on light blue, and dries perfectly white.

At the paint store, they put in a little package of powder and shook the can in the paint shaker before we brought it home.  

How on earth does it work?

Owen and Chrystal, Keswick, Canada.

What do you think?
« Last Edit: 14/03/2010 14:53:28 by chris »

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Offline RD

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