Fav Glue for Butt Joints??

[SteveJ]

Righty, I was curious what the consensus was on what glue to use for visible butt joints / lamination ?? My latest wee project (pics to follow hopefully ) involved gluing up three smallish strips each 15mm square. Got the dry fit very nice, wacked on glue, clamped and left to set.... huge ugly glue joints due to glue shrinkage... gutted - very foolish... came out nice otherwise though :lol: .

So what's the story??

 

[FatFreddysCat]

For laminations I'd say first Cascamite, or whatever they call it now, don't know as we buy from a trade supplier or failing that a good quality outside grade PVA, the cross-linked stuff which sets properly. They are what we use to laminate-up curved edge lippings when it's needed

 

[joiner_sim]

another vote for Cascamite. I think its called resintite now thats the branding, by ever build.

 

[Chems]

With your project cant you just squeeze extra glue into the gaps left by shrinkage and repeat untill they are filled?

 

[SteveJ]

Thanks for the replies chaps, cascamite it is... Chem, I've already partialy applied some finish but I'm thinking I'll strip it back and use some CA to fill the gaps (GRIP thick stuff - indispensable ).

 

[MIGNAL]

Is that down to glue shrinkage? Sounds more like a bad joint, raised grain or insufficient clamping. You could do a joint with virtually any woodworking glue and it will come out fine - providing the joinery is up to it. If you want a gap filling glue then it's a different question.

 

[Setch]

Like Mignal said, this doesn't sound like a shrinkage problem. If the joint was tight, the glue can shrink like crazy and the joint will stay tight - the theoretically perfect glue joint has a layer of glue only one molecule thick.

The only way that glue shrinkage can do this is if you were counting on the glue to fill a gap which was alrady present.

 

[dicktimber]

Don't use Pollycell...... :lol: :lol: :lol:
Mike

 

[Night Train]

If you use a gap filling adhesive make sure you have firm and even pressure all over your laminations.
I have found that if the cramps are just dotted about with little packers then the expansion of the adhesive can cause ripples in the uncramped areas of the lamination especially if they are thin. You can then have more of a glue line then you may have had with ordinary adhesives.