Bora-Care should only be applied to raw wood. It will not penetrate through any wood that has been pre-treated. Polyurethane is equivalent to applying paint, so the best process would indeed to be strip the finish and apply Boracare as this is the only product that will penetrate through the wood and eliminate the existing infestation and prevent future infestations.
We really cannot guess what the insect may be. We recommend either trying to gather a sample of the pest for a pest ID or calling a pest control operator in to give a free or low cost inspection to help you make the pest ID. Once you know for sure what pest you have, you can choose the correct treatment method.
For any left over mixture of Bora-Care, we recommend that you contact your local city or county sanitation department for proper disposal instructions in your area as they can vary. Your brush can be washed with soap and water or you can dispose of it as well.
Bora-Care will penetrate through the wood and kill any insect eating the wood no matter where they are in the wood. However, it can only be applied to raw wood so you would need to apply it to the side that is not painted. It cannot be applied to wood that is painted, stained, or sealed. If your wood is painted, stained, or sealed, then you will need to drill holes and inject Bora-Care or sand the finish off of the wood, treat with Bora-Care, and then refinish the wood
Yes, Bora-Care can be applied either by spraying or painting with a brush onto the unpainted/raw wood surface.
Boracare should only be applied directly to wood. We would recommend using something like Termidor Foam in the wall voids. This product will be injected at the studs of the wall. Termidor Foam is a non-repellent so the termites do not know they are coming in contact with it. You can drill holes in the stud every 10-12 inches apart. This product has a residual of 3 months.
Bora-Care is a very safe product and it is considered a green product as well. Typically, it takes about an hour for the surface of the wood to dry. After application has dried completely, it should be perfectly fine for children and pets to re-enter the house. Please read the BoraCare product label for complete usage instructions. Boracare does have to be applied to raw, untreated, unpainted wood.
Bora-Care can be applied to log cabins or other wood surfaces that are in its natural form without a finish, varnish, sealant, paint or stain. Otherwise the solution will not penetrate into the wood to target the listed pests.
Yes, Bora-Care can be injected into the studs themselves. It can be sprayed, painted, rolled or injected.
Bora-Care should only be applied to raw wood that does NOT contain epoxy, sealants, varnishes, paints, stains, etc.