OK, I have looked through some of the previous posts, but I’ll use up some more bandwidth soliciting opinions.
I am making exterior shutters from western cedar, pegged M&T frames, floating raised panels made up of 3 edge-glued pieces. They will be painted. SO….the million dollar question:
what glue to use, PVA, poly, yellow glue? And what brands? I have used Gorilla Glue, but not enough to really have an opinion. I am mostly concerned with the panels splitting since the house faces west and gets lots of heat and sun and the central VA summers are muggy w/ lots of changes in humidity.
As usual, thanks. Jake
Replies
What kind of overhangis there? will they be getting wet regulary?
Differance is if you need a water resistant or water proof glue.
If they get damp sometimes and wet rarely - I would use a water resitant glue. If they will get drenched by the rain and snow fairly often, I would use a waterproof glue.
I like Titebond a lot. II is water restiant and III is waterproof. I just heard that Elmers has come out with a water resistant glue that is also stainable. I plan to give that a try
It is on a cape w/ typical soffit so not drenched typically by rain, but certainly the opportunity in heavy rains to get a thorough soaking. They will be painted however, so that will provide substantial protection.
Any Type II PVA yellow glue will work just fine. Titebond II or Elmer's Exterior PVA are a couple of brands.Howie.........
There are several choices for exterior, waterproof glue. Gorilla and other polyurethanes, which are used straight from the bottle, Titebond III, Epoxies like West systems which require mixing and sometimes binders, Resorcinol, a two part mix of a powder and a purple liquid. This was the old standby for boat builders, it has to be mixed with fresh materials and thoroughly.
My choice would be the Titebond III, it's very much like ordinary woodworking glue, no mixing, low cost, no foaming or fillers, effective.
Beat it to fit / Paint it to match
Use a high quality epoxy like West System or System 3. There is no comparison between epoxy and 'waterproof' PVAs. Additionally, if you cut a few M&Ts a little slack the epoxy will fill the gap with strength - something PVAs won't do. You can customize pot life and cure time with West System. If you buy the calibrated pumps for each part then mixing is a breeze.
Use epoxy. You won't be sorry.
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