Once Bora-Care has dried completely on the raw, unfinished wood, you can seal, stain or paint with whatever product you would like. There are no restrictions on what you can use once the product is dry.
Bora-Care will need to be used immediately after being mixed, becasue after about 24 hours the product starts to break down and lose its efficacy. You also want to be sure the product is not left overnight in a sprayer, becasue this may clog the 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: http://www.domyownpestcontrol.com/chapin-poly-foamer-gallon-2659-p-292.html
One gallon poly foamer: http://www.domyownpestcontrol.com/chapin-poly-foamer-gallon-2658-p-495.html
Profoam foaming agent: www.domyownpestcontrol.com/profoam-foaming-concentrate-p-307.html
Hope this helps. Please let me know if you have any further questions.
Boracare can be used on wood that is pressure treated, but it may take longer to absorb into the wood. In some cases, such as in a pre-construction termite treatment, pressure treated wood must be treated with Boracare. Boracare is preferred over other treatments such as Timbor in treating furniture because Boracare dries clear and will leave the furniture in its natural state. It will also absorb much further into the wood so you know the infestation is treated. Boracare is diluted with water at a 1:1 - 1:5 ratio depending on the pest you are targeting.
Boracare can be mixed with hot water or used as a foaming agent. The amount of water will depend of the if you are doing a treatment for an active infestation or for preventative.
Foaming is the preferred method when treating voids. To foam a product you need a poly foamer to apply the foam and our ProFoam Foaming Concentrate which is an expanding liquid you need to mix with the solution. You would mix the Bora-Care with water in a one gallon poly foamer, then pour in the foaming agent, then mix it all together and pump up the poly foamer. You are now ready to foam voids.
For most pre-treatments, you will do a 5:1 ratio. You will use 1 gallon of Bora-Care to 5 gallons of hot water.
For framed wood surfaces above ground, apply a 1:1 solution. Treat remainder of structural wood in a 5:1 solution. Concentrate application in areas susceptible to attack, to include all sills, plates, floor joists, piers, girders and subfloors. Treat all exterior wood including siding, facias, soffits, eaves, roofing, porches, decks and railing. If Bora-Care is the sole preventative treatment for subterranean termites, a 1:1 solution must be used.
Buildings on crawl spaces and basements (preventative and pretreatment) – Use a 1:1 solution and apply in a 2 foot uninterrupted band to all structural wood surfaces in crawl spaces and basements. To prevent termite shelter tubes on crawlspace walls, apply to concrete or block walls in a 2 foot band up from the ground on interior wall surfaces. Apply at the rate of one gallon to 400 square feet of surface area.
Boracare takes care of any active infestation of wood-destroying insects such as termites, carpenter ants, powderpost beetles, etc. It is possible for the wood to become infested again if it has been exposed to water, if the wood wasn't treated in any way, like if it wasn't stained, after the Boracare treatment dried or if not all exposed sides were treated.
Although, from the information you provided regarding the termite tunnels, if you're talking about mud tunnels then you are dealing with Subterranean termites. Boracare will still affect them if the eat the wood but the method of treatment to get rid of the colony will be to do a trench treatment around the Perimeter of your home with Termidor. Termidor can't be used indoors unless it's sprayed/foamed inside an enclosed wall void.
If you are sure, however, that you are dealing with Drywood termites, we recommend that you call Nisus (800) 264-0870 to troubleshoot with them as they are the makers of Boracare.