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Expert's Corner — evaporate

Wetting to Predict Blotching

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Wetting to Predict Blotching

You can usually get a pretty good idea whether or not the wood you are using will blotch when a stain or finish is applied by wetting the wood.You can use any liquid, but water will raise the grain causing you to have to sand more. Mineral spirits (paint thinner) works well except if you intend to apply a water-based finish. Some residue oiliness may remain and cause the finish to fish eye—that is, bunch up into ridges rather than level out.Denatured alcohol would be better for this situation because it will totally evaporate. But it evaporates quickly, so you...

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So-Called “Green” Paint Strippers

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There are an increasing number of so-called “green” paint strippers on the market with problems you need to be aware of. These strippers are easy to identify by their packaging, which is always in plastic containers. Traditional methylene-chloride and flammable-solvent strippers are always in metal cans. The packaging tells you everything you need to know about the strength of the stripper. Strong solvents dissolve plastic. So the green strippers use weaker solvents. These strippers are still very effective, however. If given enough time, they will liquefy or loosen the bond of almost all paints and finishes. There are four things...

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