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Expert's Corner — wrinkle

TIP: Spraying Lacquer Over a Paint or Finish

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There are risks to spraying any type of solvent lacquer over any existing, and older, paint or finish. The problem is the lacquer thinner in the lacquer. A wet application can cause many paints and finishes to wrinkle or blister, even an old coat of lacquer itself. The two easiest ways to avoid problems are to spray several light (almost dust) coats of lacquer to get a bit of a build before applying wet coats, or to apply a coat of shellac before spraying the lacquer. Both methods will create a barrier to keep the existing coating from being excessively...

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Coating Over an Existing Finish: A Risky Business that Sometimes Works

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Finishes deteriorate as they age. First they dull, then they begin to crack. Exposure to light in the higher ultra-violet ranges, such as sunlight and fluorescent light, accelerates the deterioration. Finishes also get damaged from abuse, which can cause a surface to look bad. In some cases, the only way to repair the deterioration or damage and make the furniture or woodwork look good again is to strip off the old finish and refinish. There are many situations, however, where applying a coat or two of finish on top of what is already there can make the old deteriorated or...

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