Wood glue

Wood glue

Wood glues are adhesives used to tightly bond pieces of wood together. Many substances have been used as glues.

The most common wood glues are polyvinyl acetate (PVA), also known as "white glue" or "hobby and craft", and aliphatic resin emulsion, commonly referred to as "carpenter's glue" or "Yellow glue", which has similar relative ultimate strength. The two have different grip characteristics before initial set, with PVAs exhibiting more slip during assembly and yellow glue having more initial grip. Traditionally, animal glues were ubiquitous, especially hide glue, which is still used in lutherie and restoration. Polyurethane glue (trade names include "Gorilla Glue" and "Excel") is becoming increasingly popular, especially where water resistance is required, although water-resistant cross-linking PVAs are available.

Other substances used as wood glue include
* Cyanoacrylate ("Crazy glue" or Superglue) used mainly for small repairs, especially by woodturners;
* Contact Cement for veneers;
* Hot melt for temporary uses;
* Epoxy mainly for exterior uses;
* Other synthetic resins including resorcinol, urea-formaldehyde, phenol formaldehyde resin, etc;
* Homemade glue for paper, wood, and internal uses.

Wood glue bonds tightly to wood, but not to itself. Therefore, woodworkers commonly use surprisingly little glue to hold large pieces of wood. Most wood glues need to be clamped while the glue dries.

ee also

*Glue
*Clamp (tool)

External Pages

* [http://www.diyinfo.org/wiki/Wood_Glues DIYinfo.org's Wood Glues] - A comprehensive wiki section on wood glues and their applications.

References

Patrick Spielman (1986). Gluing and Clamping: A Woodworker’s Handbook. Sterling Publishing. ISBN 0-8069-6274-7


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