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Jonathan from Montgomery Alabama writes,

What is the correct ratio of BORACARE to treat a newly framed garage?

I am building a detached 18X20 garage. I have it dried in (roof and walls are sheathed) All studs and rafters are exposed on inside. I used a hand sprayer (1 Gallon) with a 1:1 ratio. THe label says to use ratio of 1:1. I have been told to use 5:1. Can you please inform me officially what ratio to use on this 2nd coat? THanks. I do have the blue tablets. Made it so nice to see what was sprayed and what wasn't.


We ALWAYS recommend using a 1:1 ratio  with Boracare because of 2 reasons.  First of all, a 1:1 ratio is the strongest ratio and will ensure complete penetration through the wood and it will protect longer in the wood than any other ratio.  Second, even though you are using new wood, or store bought raw wood, it can still contain beetles and other insects from the mill.  Applying a 1:1 ratio ensures that if there are any issues whatsoever, they are taken care of before they become a problem.

Answer last updated on: 06/23/2012

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