Thread: Help!! HSC Glue advice

I wonder if they were refering to something like a Urea Formaldehyde which I have heard recommended for redgum given the nature of redgum to move. I don't think is what you would need for Jarrah and personally I would be a bit wary of anything with Formaldehyde in the name due to toxicity. Others might have more info?

I'm using epoxy Techniglue CA for laminating my veneer handles. (Thanks again to DJs timber for putting me onto it.) Two part mix stuff but quite stiff, like spreading vaseline rather than honey. Made it very easy and mess free to work with. Available from Carba Tech. PVA was not holding the tight curves, as the flexibility was causing delamination. Also PVA was not holding the more exotic woods. Oily or hard woods like Black bean and cedar need to be cleaned with acitone then glued fairly soon after drying because oil starts emerging again pretty fast.

Tried Urea formaldehyde. Glued the woods alright, but gritty, and runny to use. (And the toxic thing.) Also a bit hard to get. The smallest amount AVSyntech sell is 5 litres. Can get small amount from Bunnings but very expensive. (Like $28 for 200gms or so.)

Haven't use Jarrah, but epoxy would probably be the thing. Is it oily wood? Sand surfaces to be glued or clean first with acetone, then glue when dry. I am using Techniglue CA from Carba Tech. Easy to work with. spreads like vaseline instead of honey, so not as messy. Bit pricey though.

I think it depends on what you are actually going to build with the jarrah more than the actual Jarrah itself . Whether or not it needs to be water proof , will it come into contact with food etc.

As far as i know Jarrah does'nt need a special type of glue. I have always used a cross linking PVA (yellow glue)....but any type of wood working glue will do in most situations.

The epoxy TL mentions is good but you only really need it if some sort of mechanical strength (ie no creep) is required in the glue joint such as in something laminated. It is also very good if you require a very long open time (time between applying the glue and clamping). It also has good gap filling properties. But is a bit of over kill ( cost wise )for general furniture

So if your project is going to be a piece of furniture or something similar with no bent laminations etc. I would suggest good old PVA (white glue)or a cross linking PVA (yellow glue)

cheers
BD

What Brown Dog says is eminently sensible.
Why do people insist on creating myths when there are none to be created?

Yep, Brown Dog is correct. I'd use yellow glue unless doing bent laminations, when I'd use techniglue.
There are a few timbers that are oily & cause gluing problems, but they'll cause problems with most types of glue. Jarrah isn't one of them.

Originally Posted by HSC

I'm doing my major for for my year 12 hsc and need some help selecting a glue. I'm using Jarrah as my timber and have been told i need a special glue. If anyone knows the name of the glue it would be a great help.

thanks

This is the research and justification needed in your folio.

Google AV Syntek - look at the options and decide.

Set out what you need the glue to do, joint strength required, weather resistance, etc....

Make up a table and justify why you've used the glue you chose.

Cheers,

eddie

HSC what are you making? i am making a 'single seater lounge chair' out of jarrah, i am gonna use PVA, coz it is only for indoor use.

is this for Woodwork, or Design and Tech??

Originally Posted by HSC

I'm doing my major for for my year 12 hsc and need some help selecting a glue. I'm using Jarrah as my timber and have been told i need a special glue. If anyone knows the name of the glue it would be a great help.

thanks

I remember some years ago I visited a chap making tables and other stuff professionally from Oz hardwood. He says it is important that after dressing the pieces to glue STRAIGHT AWAY, before any oils etc leak out from the bits to be joined. Don't remember what glue he was using cheers R