Two things: -1- About 30 minutes of Googling suggests to me that Everbuild Lumberjack wood glue is sold in the UK and not in the U.S. Can be ordered from the UK via eBay and various sites. So I won't be testing it this time around because I will be well into gluing before an overseas order would arrive.
-2- RE: Gorilla Glue and other polyurethane wood glues. Read on a couple boat-building sites that while the foaming action appears to be beneficial for filling in gaps, this is not really the case. The foaming action IS beneficial when the glue is applied thinly to one of two pieces to be attached and the other face is wet down, and then the pieces are tightly fit together and clamped. In that case, foaming can force some of the glue deeper into the joining wood fibers, strengthening/deepening the bond. But the hardened foam itself, filling gaps and holes between the two pieces to be bonded, actually weakens the bond between the pieces. The hardened foam is much more fragile than the areas with only a super thin coating of cured glue and no gaps. Since I have already bought about 10 28 oz. tubes of Liquid Nails Heavy Duty Construction Adhesive (which I COULD return for refund or exchange), I think I will stick with it for this project, rather than opt for the more expensive Gorilla Glue, and rather than experiment with some other brands / compositions of polyurethane wood adhesives. I was enthusiastic about Gorilla Glue for its gap-filling tendency since many of my cuts are not perfectly straight and even. That is, I WAS, until reading the information I summarized in item 2 above. Gorilla Glue may make a stronger bond than Liquid Nails on polyiso to polyiso faces. That's speculation on my part, but is based on the fact that both the glue and insulation board have polyisocyanurate as a key ingredient in their formulas. -- You received this message because you are subscribed to the Google Groups "hexayurt" group. To unsubscribe from this group and stop receiving emails from it, send an email to hexayurt+unsubscr...@googlegroups.com. To post to this group, send email to hexayurt@googlegroups.com. Visit this group at https://groups.google.com/group/hexayurt. For more options, visit https://groups.google.com/d/optout.
