Two major early developments were the use of casein for glulam production and soy adhesives for interior plywood.
Although the exterior plywood market has seen a decrease in housing due to replacement by OSB, the interior plywood market continues strong because plywood is used in cabinetry.
Environmental: local hardwood trim and beams, FSC-certified low-formaldehyde interior plywood
, no OSB/particleboard
offers KD bolts and inserts that can be used in particleboard, interior plywood
, softwoods, hardboard and in butt joint fastening.
Low-density polyethylene film has also been chosen to develop nonformaldehyde plywood, and the resulting plywood meets the requirement for interior plywood application (Chinese Patent 2000, Chang et al.
Characterization of a formaldehyde-free cornstarch-tannin wood adhesive for interior plywood.
Although soy flour was used for making interior plywood in the early to mid-20th century, it was generally replaced by urea-formaldehyde (UF) adhesives because of their improved performance and lower cost.
In addition, we have found that soaking these bonded lap shear samples in water and then testing their strength gave a good indication of how well the bonded wood would perform in the water soak delamination tests used for interior plywood (Frihart et al.
BC interior plywood
producers are now producing structural plywood panels from a dry, checked, and stained mountain pine beetle (MPB)-attacked log supply.
For all three wood species, after both accelerated-aging methods, plywood shear strength and wood failure exceeded the two interior plywood
Wanaselja selected exterior and marine-grade plywoods for the interior because the glue used in their manufacture does not outgas as much as that used in standard interior plywoods