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An interesting chemistry demonstration

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Forum topic by bobkberg posted 02-07-2010 11:09 PM 1382 views 0 times favorited 4 replies Add to Favorites Watch
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bobkberg

420 posts in 2540 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 www.singularengineering.com - A sideline, not how I earn a living


4 replies so far

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sphere

109 posts in 2498 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

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Padre

930 posts in 2955 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 -----------http://www.penmanchip.com-----------------Micah 6:8

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a1Jim

115202 posts in 3044 days


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

I’m glad it doesn’t explode LOL

-- http://artisticwoodstudio.com Custom furniture

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JasonWagner

527 posts in 2646 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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