Best Glue for Bent Laminations
I am interested in making bent laminations for furniture. What type of glue should I use?
Gary Herber, Langley, None
There isn’t one adhesive ideal for every application.
With domestic wood laminations, the simplest and least visible glue is PVA (polyvinyl acetate) yellow glue. Unfortunately, it is not particularly rigid and does not have much open time. Adding a maximum of 8% powdered cornstarch by volume makes the glue more rigid and controls springback. Using a PVA glue like Franklin’s Titebond II Extend or Titebond III gives you a longer open time.
A two-part urea/formaldehyde adhesive like Unibond 800 has an open time of 20 minutes. However, you must use a good respirator when mixing it. Powdered formaldehyde glues have similar characteristics to Unibond but are mixed with water.
With oily exotic woods, go with slow-set epoxies. But don’t rush. The laminate faces should be scuff-sanded to remove…