Shhhh, not so loud! ....
:)
Shhhh, not so loud! ....
:)
According to Bob Smalser
Chris
Thanks for that info. Does that mean that epoxy melts into them or reactivates them in some way? Or just because epoxy will adhere to plastic?
Epoxy degrades with heat and UV. In either case, under humidity cycling I could see the layer of wood immediately next to the glue failing.
Chris
"Expensive" is a relative term.
Last time I bought a gallon of TB-II it was about $20.
I don't pay even close to $20/gal for epoxy, but then I buy it in 500 lb (55 gal) drums.
Retail, a gallon of epoxy is probably about $60 these days.
Somehow, I think the cost of the adhesives used in a project gets lost when compared to the cost of any of the following:
1) Wood 2) Finishing materials 3) Hardware.BTW, slow hardener and laminating epoxy resin will give at least 30 minute open time @ 75F which is a whole lot more than TB-II.
Lew
As I said, " Long after the wood has returned to compost, epoxy and resorcinol will still be there, thus what's to repair?, and that includes the conditions described above
As for heat degradation, by the time the epoxy is softened, the wood will be scorched.
If you are going to use epoxy as a coating, then UV protection is required.
If you are going to use epoxy as an adhesive, no UV protection req'd since only the outside edges of the joints are exposed.
Lew
IOW, 3 times the price, and much more in smaller quantities ... nuff said. :)
3 times the price for equal quantities: however, 3 times a small total cost percentage is still a small total cost percentage.
Nuf said
Lew
Advise, LOL. IMHO the more mortise and tennon joints you use the stronger the project joints will be. The easier it is to create loose mortise and tennon joints the more you will use them.
Buy a Domino NOW!
Just that epoxy will adhere to the previous glue. And it's gap-filling, which helps if the previous joint members have been deformed slightly.
Chris
Wow! you missed my sell point by $25. LOL
Well, considering how much you've used yours lately, you must be getting really sick and tired of it. So, I'll help you out and offer you $100 for yours including the vacuum. Hell, I'll even pay the shipping to me up here in Canada.
RE: Subject
Think biscuits.
Lew
Where do you get retail pricing like that?
As a point of reference Lee valley sells epoxy for about $40/quart
Here, for one...
Almost anybody who is in the epoxy business.
Try System3 for example.
Obviously not in the epoxy business.
Lew
On Fri, 17 Apr 2009 12:27:09 -0500, the infamous Swingman scrawled the following:
I wish I still had that link I saw eons ago. It had a video of all the joint types (dowel, loose tenon, biscuit, integral m&t, lap, miter, etc.) being tested with strength charts afterward.
Here's one newer destructive test site:
As usual, a lot of variation comes from loose fit, so remember to fit your tenons (loose or integral) snugly for the best durability.
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