Slow setting wood glue

[transatlantic]

I need to do a large panel glue up, and am looking for a slow setting glue so that I have plenty of time to make the many mistakes I know I'll make (even with a practise dry run).

I know of the Titebond Extend one, but are there any others worth considering?

I've thought over doing it in parts (one after the other as I don't have enough clamps to do two parts at the same time), but from what I can see, the normal Titebond takes 24 hours to fully set. Does that mean I shouldn't take it out of the clamps for 24 hours?

 

[marcros]

liquid hyde glue or cascamite?

 

[custard]

Couple of questions there so let's tackle them one by one.

Cascamite is a better slow setting option than Titebond Extend, TE gives you a couple of additional minutes (say from 8-10 minutes at lowish temperature out to maybe 12-15 minutes max), where as Cascamite gives you the best part of an hour.

Titetbond can be safely taken out of cramp, and lightly worked, after just 30-45 minutes. That's what makes it so popular in professional workshops as you can crack on with other jobs in double quick time. The penalty is short open time (as you've astutely realised ahead of the actual glue up!) plus it's very "grabby", By this I mean if you have a really tight joint and half assemble the piece, planning on fully closing the joint later with cramp pressure, but leave it for just a couple of minutes while you hunt down the right cramp, then you may well find the games up, it's "grabbed" and no amount of cramping pressure will subsequently shift it.

Good luck!

 

[transatlantic]

Cascamite : Tack time 1-2 hours cure time 6 hours (temperature dependent)

Sounds just like what I need!

Any recomendations as to which one to get? perhaps http://www.axminster.co.uk/cascamite-po ... ue-ax21688 ?

Also, are these other glues much the same thing as Titebond?

- Evo-Stik Resin W Wood Adhesive
- Evo-Stik Wood Adhesive Interior
- No Nonsense PVA Wood Glue

 

[ED65]

I need to do a large panel glue up, and am looking for a slow setting glue so that I have plenty of time to make the many mistakes I know I'll make (even with a practise dry run).

How about doing it in stages instead? I've seen many SBSs where wide panels were made up in sections, which are then glued together the next day.

If you're set on doing it all at once how about 1-hr epoxy? I don't know that it's a cost effective option but it certainly gives you plenty of open time, particularly if your workshop/shed is cold at this time of year. One of my 5-min epoxies is currently taking as much as 30 minutes to tack up and doesn't fully set until about five hours have passed!

 

[custard]

Cascamite : Tack time 1-2 hours cure time 6 hours (temperature dependent)

Sounds just like what I need!

Any recomendations as to which one to get? perhaps http://www.axminster.co.uk/cascamite-po ... ue-ax21688 ?

Also, are these other glues much the same thing as Titebond?

- Evo-Stik Resin W Wood Adhesive
- Evo-Stik Wood Adhesive Interior
- No Nonsense PVA Wood Glue

No they're not the same. Get a small pot of Cascamite/Ultramite or whatever it's called these days. Follow the mixing instructions precisely (kitchen measuring spoons for 7:2 measurement by volume is ideal) follow the instructions regarding adding the water in two stages, the first stage will seem impossibly thick, just persevere.

After cramping up take your time checking for square (you've loads of time, take advantage of it) then get some hot water and an old tooth brush and scrub hard at any squeeze out. Dab it dry with kitchen paper and do it a second time. Cascamite dries glass hard and is a pig to plane off, but it really behaves itself when sponged off before drying, I find it affects my subsequent finishes far less than PVA glue if I'm diligent at this stage. Check for square again by measuring diagonals, check for wind, this is what craftmanship is all about, checking, checking, checking.

Leave in cramp for 24 hours at temperatures above 15 C. Don't be tempted to slacken off the cramps to "just take a look".

You'll be fine, it's good stuff!

Good luck!

 

[Normancb]

Cascamite is a water-activated urea-formaldehyde resin with a bit of clay in it as a reinforcing agent. It's pretty much ideal for what you want to but worth taking the trouble to get the mixing right - either use a set of cheap kitchen measuring spoons to do by volume, or cheap kitchen scales to do it by weight. I use an old kitchen scale to weigh the powder and a plastic measuring cylinder for the water.

The various white and yellow glues are all variants on PVA emulsion so they are similar but far from identical. Some are very basic and cheap - others are more sophisticated formulations for better properties - especially creep and moisture resistance.

I'd avoid buying a lot more Cascamite than you need - it does gradually absorb moisture from the air and go off.