Don Stephan
Posts: 825
Joined: 2003-07-18
Location: Cincinnati, Ohio
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The last door panel, two plied on both sides, has a wedge of two ply on a back corner that didn't stick. It extends about 1/2" on one side of the corner and about 6" on the other side.
When the vacuum pulled the bag tight, I noticed the top caul had shifted off one corner. I removed the vacuum, realigned the top caul, and restarted the vacuum. I'm wondering if perhaps the overhanging corner of the 3/4" baltic birch caul pressed down so hard on the corner where it was hanging over that it left that bit starved for the urea formaldehyde adhesive.
I made an extra door panel, but would like to try to fix this if possible in case there is another worse gotcha I haven't found yet. If this little triangle was glue starved, there's a thin film of cured urea formaldehyde on both surfaces, and there's not much I can do to even rough up the surfaces.
the loose triangle flexes a bit, so I'd like to try working an adhesive into the gap and then clamp everything together for 24 hours. Is there any adhesive likely to stick to cured urea formaldehyde?
Thanks.
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