Difference between revisions of "Wood glues"
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Revision as of 08:34, 10 April 2007
Wood glues are adhesives used to tightly bond pieces of wood together.
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 to achieve maximum bond strength.
Types of Wood Glue
Many substances have been used as glues. The most common wood glue is polyvinyl acetate (PVA), also known as "carpenter's glue" or "Yellow glue". The white version of polyvinyl acetate is also used on wood. 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 PVAs are available .
Substances used as wood glue include:
- polyvinyl acetate (PVA), yellow & white
- animal glues
- Polyurethane
- 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.
Exterior Use
Wood glues intended for exterior use vary in their suceptibility to water.
- PVA (exterior grade)
- Polyurethane - survives showers but not constant wetness
- Hide glue
- Cyanoacrylate
- Contact cement
- Hot melt
- Epoxy - waterproof
- Resorcinol
- Urea-formaldehyde
- Phenol formaldehyde resin
Trade & other names
- PVA, yellow - carpenter's glue, yellow glue
- PVA, white - elmer's, white glue,
- Polyurethane - Deckbond, Gorilla Glue, Excel
- Hide glue - animal glue,
- Cyanoacrylate - Superglue, crazy glue
- Contact cement
- Hot melt
- Epoxy
- Resorcinol
- Urea-formaldehyde
- Phenol formaldehyde resin
Alternatives to Wood Glues
- Screws
- Nails
- Tacks
- Pins & headless pins
- spiral headless things look like drill bits name of?
- Corrugated fixings
- Clips
- Dowels
- Biscuits
- Dovetail & other interlocking joints
- Repair plates
- Wooden pegs
- KD (knockdown) blocks
- Metal strapping (perforated & screwed or nailed)
- Friction, tight fit
- Split pins
- Staples
- Plastic straps (wrap around, no screws/nails)
- Nut & bolt
- Pronged nut & bolt (exact name of?)
- Binding eg with wicker, string, etc
- Metal collars
- Nail plates
- Wire & eyes
See also
References
Patrick Spielman (1986). Gluing and Clamping: A Woodworker’s Handbook. Sterling Publishing. ISBN 0-8069-6274-7