Jen from Houston, Tx writes
We are building & the company builder recommended to treat all of the interior wood is adding a blue dye to the Timbor solution. Company's reason is to insure that all the wood has been sprayed so the dye helps to visibly see the areas that's been treated.
It is fine and very common to add a spray indicator dye to Tim-bor or similar wood treatment products before spraying. This helps to keep track of what wood has been treated, and it does not interefere with the efficacy of the Tim-bor. Keep in mind that the spray indicator will not fade on the wood: it will be visible permanently.
Answer last updated on: 01/10/2018