Comments on: Sanding PT wood

Question: Sanding PT wood

Raybun — Sat, 01 Sep 2007 14:52:58 -0800

What precautions are needed for sanding pressure treated wood? This is Thomsonite brand pressure treated that is not the same as the older arsenic treated wood. I will be doing this outdoors over a tarpaulin. Will a regular face mask be OK or should I wear a full mask? If my mask is need, what class of filter should be used?

By: furtive

furtive — Sat, 01 Sep 2007 16:31:53 -0800

What precautions should I take when
working with CCA-treated wood?

Saw, sand and machine the wood
outdoors, and wear a dust mask,
goggles and gloves.

Clean up dust, scraps and other
debris and dispose of in trash. Do not
compost or use as mulch.

Do not burn treated wood, since
burning may cause the release of toxic
chemicals in smoke and ash.

After handling wood, wash clothing
and all exposed areas of body

Cited from this pdf document.

By: salvia

salvia — Sat, 01 Sep 2007 21:27:49 -0800

I can't find the brand Thomsonite via a google search. This makes it sound like CCA was the "older stuff" you're referring to and that the newer stuff either has more copper (alkaline copper quat (ACQ types B and D) and copper azole (CBA-A, CA-B)) or is borate-based (disodium octaborate tetrahydrate (DOT)). Do you know which one you're dealing with here. [question mark key broken]