Post by clark on Oct 12, 2021 22:21:13 GMT -8
We're new to the trailer restoration world and I think we've made a mistake. We read that you could treat board most likely to rot with fence post paint. To me that meant the Copper Green wood preservative that you paint or dip fence posts with before you put them in the ground. I think it's like DIY pressure-treated lumber, minus the pressure.
So, we applied this stuff to some of the lower skirting boards (edges that face the ground, not the flat outward faces of the skirting). The stuff smells awful and is probably toxic, so we were careful in our use and focused on only areas most likely to rot (exterior corners, inside bottom edges of skirting boards, etc.)- probably less than 3% of the framing. NOW we realize that the copper in this, like the copper in pressure treated lumber, will create an electro-chemical reaction with the aluminum skin. We're far enough along in the project that removing the treated boards would be very difficult and costly.
I'm looking for ideas on how to reduce or eliminate any long term consequences of our mistake, without having to tear the trailer down to the floor again.
Should I:
Thanks for your advice, this forum has been amazingly helpful.
So, we applied this stuff to some of the lower skirting boards (edges that face the ground, not the flat outward faces of the skirting). The stuff smells awful and is probably toxic, so we were careful in our use and focused on only areas most likely to rot (exterior corners, inside bottom edges of skirting boards, etc.)- probably less than 3% of the framing. NOW we realize that the copper in this, like the copper in pressure treated lumber, will create an electro-chemical reaction with the aluminum skin. We're far enough along in the project that removing the treated boards would be very difficult and costly.
I'm looking for ideas on how to reduce or eliminate any long term consequences of our mistake, without having to tear the trailer down to the floor again.
Should I:
- Paint over the copper green with asphalt-based fence post paint (two coats) or some kind of primer/sealer
- Count on the vapor barrier/wrap to keep the layers apart
- Spray some galvanizing spray paint on the inside of the skin before we install it, anywhere it might touch, or wear through to touch, the copper preservative. Zinc or Magnesium galvanizing agents would corrode first if electrical contact was eventually made.
- One or more (or all) of the above?
Thanks for your advice, this forum has been amazingly helpful.
