We do not recommend applying Boracare or Termidor SC to firewood. Burning any type of insecticide would release the active ingredients into the air. Burning the wood without treating with any chemical would kill anything in it.
Bora-Care can be applied to raw wood for the treatment or prevention of termites. It dries on clear and is made that way so you can stain, paint, or seal any piece of wood after using it. Please refer to the product label for complete mixing and application instructions.
Yes, after the Bora-Care has dried, you can sand and finish the wood. It usually takes 24-48 hours to fully dry. Nothing harmful is released into the air in doing so.
The manufacturer has told us that Boracare is not corrosive but of course should not be sprayed onto exposed electrical wiring of any sort.
Boracare can be used on ANY raw wood that is not painted, stained, or sealed. Even hardwoods. Since it dries on clear, it is no problem to stain, paint, or seal when you are done or apply a clear coat finish.
It is not necessary to sand wood that is raw when treating with Bora-Care. If the wood is painted, stained or sealed then you would want to sand first and then treat.
Bora-Care would be great for applying to raw, cleaned wood for treatment against wood destroying organisms. We do carry a wood cleaner that you can apply first to remove any staining or discoloration called Mold-Clean.