John from Highland writes
Am I correct that this is basically boric acid
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 and will be visible permanently. Timbor is a borate solution.
Answer last updated on: 09/06/2018
