joe2700 wrote: ↑Sat Jan 15, 2022 10:43 pm
pee wee wrote: ↑Sat Jan 15, 2022 10:05 am
Did you neat coat both pieces with epoxy before spreading the Gel Magic?
FYI you don't need to do that for gel magic. From the TDS:
NOTE: GelMagic may be used directly on new wood without pre-coating with an epoxy coating or sealer. If substrates are
pre-coated, sand any cured material in the bonding area prior to using GelMagic.
I learned something today, thanks!
Here's a discussion on gluing up transom pieces that may help. By the way, Cracker Larry was an expert builder who we all benefited tremendously from.
viewtopic.php?t=60364&start=20
You will notice that Larry likes to glue all the panels up at once, like you mentioned (but aren't you glad you didn't mess up all the panels in one go?). I find the search features of the forum to be a bit difficult to use, but there is a lot of information here if you can dig it out.
As to the differing ply thickness on what you bought at the hardware store, it should be okay for a flat panel like the transom, but isn't great for bent panels.