No help for painting concrete block?

Old 10-13-01, 05:00 AM
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I asked a question a couple days back asking for advice on painting exterior concrete block. Can anyone provide some help here? What I would like to know is what is the best procedure? Waterproof, prime then paint? Or prime only then paint? Thanks for the help.

Old 10-13-01, 01:30 PM
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I'm not an expert on painting concrete block, but he first step would be a thorough cleaning. The block and mortar contain alot of mineral salts which needs to be cleaned off. There are concrete cleaners available but I don't know which is best. A pressure washing would supplement the cleaning.
There may be some paints available that can be applied directly to the concrete. Also, Have you considered having the block covered with a 'thinset' coating. They can be applied in various colors.

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