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Glue question?

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Glue question?

2/2/07, 7:56 PM #1

Barry Irby
Master Craftsman
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13,125 posts

Registered: 1/27/05

Glue question?

Barry Irby

>I really work at getting 100% glue coverage in a joint and waste a lot of glue on squeeze out. (Wonder if sometimes I don't waste most of it?)

If you glue two pieces together and lets say there is ten square inches of surface area where they contact. Then you glue another piece that has twenty square inches, but somehow you get glue on exactly ten square inches, which joint is stronger? (All other things being equal) Does "air" in the joint matter? Will a pratially glued joint fail for some other reason? Would finish cover such a joint?

Re: Glue question?

2/2/07, 8:15 PM #2

Doug in Denver
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Re: Glue question?

Doug in Denver

>The joint with full coverage is stronger. Movement - either seasonal or by some external force - of the unglued sections of the larger pieces can put "leverage" on the glued portion. Make your hypothetical silly and you can see the point - is a fulle coverage glue joint between two 1" square pieces as strong as 1" of coverage on two pieces 100" square? All of this assumes that your glued surfaces are not fighting each other across grain.