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Robert from Ashfield, Ma writes

I have painted hollow columns made of 3/4" pine and I would like to protect them with Bora care.

I plan to drill holes in all four sides near the top and spray the Bora Care in. Would foaming be better. What foaming agent and how much should I use in my 1 gallon Chapin sprayer?


Foaming would definitely be the best option for your scenario. You mix Bora-Care as you normally would at a 1:1 ratio (one gallon of bora-care with one gallon of water).  After you mix it, pour the solution in the foamer and add Pro-Foam foaming solution.   You want a high expansion foam so you should mix 7 to 10 oz. of Pro-Foam per gallon of bora-care solution that you make.  Then close the lid, shake the foamer, and pump it like you would any other hand pump sprayer.  The Chapin Poly Foamer comes with a coiled hose and ¼ inch tapered nozzle.  You can get the Chapin poly foamer in a 1 gallon model or a 2 gallon model.  Here are links for you to see: Two gallon poly foamer: One gallon poly foamer: Profoam foaming agent: Hope this helps.  Please let me know if you have any further questions.

Answer last updated on: 08/23/2012

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