EVALUATION AND DEVELOPMENT OF ADHESIVES FOR MARINE ASSEMBLY GLUING.
FOREST PRODUCTS LAB MADISON WIS
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A study was made to search out or develop, by modification, adhesives suitable for such applications as bonding the various layers in multiple planking of boats and ships, as well as other uses where the grain of adjacent layers of wood is at an appreciable angle. It was assumed that adhesives of the resorcinol type probably would be too rigid for such applications, and this undoubtedly is true where high-density wood species having high shrinkage characteristics are involved. Because epoxies shrink very little on curing and generally require only light gluing pressure, it was thought that they might have a better chance than resorcinols for certain assembly gluing applications, particularly if their water resistance could be improved to meet rigid service requirements. While most epoxies, as well as some other adhesive materials studied, had extremely low water resistance especially so with denser woods, a few showed some promise in short-term tests, particularly when modified with asbestos. With some of these adhesives, bandsawn surfaces gave definitely improved results over smoothly jointed or planed surfaces. Author
- Adhesives, Seals and Binders
- Wood, Paper and Related Forestry Products
- Marine Engineering