An interesting chemistry demonstration

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Forum topic by bobkberg posted 02-07-2010 11:09 PM 1372 views 0 times favorited 4 replies Add to Favorites Watch
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420 posts in 2492 days

02-07-2010 11:09 PM

I was gluing up two pressure treated boards the other day with TiteBond II. Since there was a slight curve to one of them, I clamped the whole thing onto the iron top of the table saw.

As some of you may know, the chemicals used in pressure treated wood are mostly copper salts.

When I unclamped the piece from the table saw, I was surprised to see that a small area of the iron table was now copper plated – right where the glue had oozed out between the pressure treated wood and the table top.

So something in the Titebond extracted metallic copper out of the salts in the wood.

Just thought this was an interesting tidbit.

-- Bob - A sideline, not how I earn a living

4 replies so far

View sphere's profile


109 posts in 2450 days

#1 posted 02-07-2010 11:17 PM

Scrape it up, I get 2.70$ a lb for my roofing scrap. LOL

-- Spheramid Enterprises Architectural Wood Works

View Padre's profile


930 posts in 2908 days

#2 posted 02-08-2010 12:17 AM

You may have stumbled on to something…....copper topped table saws! They keep going, and going, and going. :)

-- Chip ----------- 6:8

View a1Jim's profile


115171 posts in 2996 days

#3 posted 02-08-2010 12:26 AM

I’m glad it doesn’t explode LOL

-- Custom furniture

View JasonWagner's profile


527 posts in 2599 days

#4 posted 02-08-2010 12:33 AM

TiteBond II marks up my table saw top by itself too. I made the mistake of gluing something up on it once before and it will take a good buffing to get the marks out, but they are only cosmetic.

-- some day I hope to have enough clamps to need a clamp cart!

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