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Expert's Corner — flexer

TIP: Shellac and Fish Eye

bob finish flexer shellac silicone surface the finishing store top wood wood finishing woodwork woodworkers

TIP: Shellac and Fish Eye

Fish eye is cratering or ridging in the finish right after application (brush or spray). It is caused by silicone in the wood. The silicone is an oil that is commonly included in furniture polishes, hand creams and other household products. The oil is very slick and prevents the finish from leveling out. All finishes are susceptible to fish eye if the silicone contamination is great enough. But for most situations shellac isn’t affected by the silicone. A coat of shellac will block the silicone so another finish can be applied on top without a problem. On this sample, I...

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