>Is glue really permanent? Are different glues used for different
I've had good luck with most glues I've used.
Some cases, good and bad:
o construction adhesive: not alot of strength; my best use was in
building up subfloors from several layers of plywood
o yellow glue (aliphatic resin?): no failures based on product; if
glue was too old, or used improperly or outside intended use,
bad results. Works on face joints, interlocking joints; woods,
leather, stone, etc.
o resourcinol: very strong; poisonous before cured; can use in
o polyurethane: not very happy with this much-touted wonder glue.
Several tubes I bought were in date but hardened before opening.
When I did get a good tube, it was messy and not very strong....
This is totally anecdotal of course.
o Epoxy: when conditions are right -- good mix ratio, properly mixed,
right application temperature, good surface prep, etc., can be very
effective. Good strength and water resistance; may be submersible;
fills gaps well, including making colored filler for wood or stone.
DOES NOT withstand heat. Made some laminated parts combining
brass and wood. Heat from sanding the brass flush to the wood
caused bonding failure every time.
o Crazy/super glue (cyanoacrylate): must be fairly fresh; may be
strong if applied correctly. Use top quality product for best
(PS: don't get glued to a Rhino's butt --
3M 5200 in a tube where flexibility is a
requirement, but bad in ridgid joints.
For example, I used it in the wooden trunk lid frame of a 1930's car and the
flopped all over the place, but would not
let go. It's a boat sealant. Works great
on teak, rosewood, etc.