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Mark
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I've seen in past threads that using ultralite as a substrate is not recommended.Wish I'd seen them earlier, but I will report my experiances.
I've been using the TruPan (brand name) for doors,shelves and countertops, all with walnut veneer.All parts are banded with solid walnut; mitered,glued and clamped with either a tongue and groove, spline or biscuit in the joint. After drying, all blanks are sanded flush in a wide belt sander to 120 grit.Using Unibond 800 as the adhesive with the air temp at 60 to 65 degrees, the blanks were glued with a roller application making sure to get the substrate wet with glue.
Also,I used a 5:1 ratio for the glue so it did not set too fast.Into the bag till dry at full hardness.
Observations/problems: I've been getting a normal amount of glue bleed through, easy to sand off. No joints have telegraphed (so far).
Some small de-laminations, allways with the grain of the veneer.This is what I've seen- at the de-laminations, the glue has adhered to the sub- strate and separated from the veneer, with very few exceptions.This is over the course of 250 sq ft+ of coverage and the failures have been less than 12 sq inches.The loose areas were flat, you had to tap to find them.
What have you folks experianced with this material? Is there a manufacturer of the material we can consult? I was working in ignorance and I'd like to know what I might expect down the road. Another job using the same materials/methods left the shop 6 mos.ago and the mechanic who did it reports no problems(with fingers crossed!) Thanks, Mark
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