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Robert from Arlington, Tx writes,

Penetrate stained window frame?

I am pretty sure that I have a powderpost beetle infestation in a window frame that was stained 5 years ago but not sealed as far as I know. Another website says this: "However, stain by itself will not stop Boracare from penetrating. If it has weathered for a year or two, than applying Boracare before you next apply some stain would be best." So would it be worth a try to treat with Boracare before going to the trouble of stripping and restaining the wood?


In order to get the full benefits of using Boracare, the label states it is to be used on raw untreated wood. We recommend sanding or stripping the wood, then applying the Boracare

Answer last updated on: 12/24/2014

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