A friend of mine sent me this blog post that says adhesives are now being made from soy: Tofu ingredient used to create formaldehyde-free plywood glue.
At the end it says “Soy-based adhesives currently make up less than five percent of the wood adhesive market.” For me, that statement says the adhesive market is 5% full of soy adhesives, not 95% empty of them.
Columbia Forest Products has been leading the way in making wood products with their formaldehyde-free soy-based Pure Bond adhesive since 2005. I saw them at Home Depot the other day.