Any suggestions for laying up raw wood veneer (2' x 12 l/f) without a vacuum. I don't want to buy a bag this long for one layup. I thought about using the dry glue method or hot hide glue but not sure how well these would work on raw wood veneer this big. Any suggestions?
I agree with Charles. Why go through all the trouble of making a bag for a one shot deal. There are plenty of twelve foot hot presses around, and step pressing does work well if no one in your area has a twelve footer. Good luck!
I agree the hot press is the way to go. However it's good to have options: if all else fails (and you already have a vacuum pump), go to your orange big box store and buy a roll of visqueen and a roll of butyl tape. You can make a single-use bag of whatever size and shape you need.
If you have a 12 ft panel and a 8 ft press, you put glue on both sides of the panel, lay on the face and back veneer (or HPL), and put 8 ft of the sandwich into the press. Let it cycle for (example) 60 seconds at 180 deg. F,, open the press just enough to slide the remaining 4 ft in and cycle again. The key thing is to use a crosslinked PVA glue. It reheats well at the area of the step. I've used resin glue but it's risky as once it cures there is no reactivation. We have done panels up to 22 ft with no issues.
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