Adhesives, Gluing, and Clamping

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Adhesives, Gluing, and Clamping

• Chapter 9

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Adhesives, Cements, Glues

• Adhesives- made from synthetic materials
• Cements- are rubber based
• Glues- are made from natural materials

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Adhesives

• Two types
• Thermoplastics
• Resistant to moisture
• Not recommended for high heat areas
• Thermosets
• Resistant to water
• Not affected by heat
• More costly

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Thermoplastics

• Polyvinyl Adhesives- white glue, 30 minute
  clamping time, setup in 24 hrs
• Aliphatic Thermoplastic Resin- yellow glue, will
  not clog sandpaper, more resistant to lacquers
  and heat
• Cross-linking PVA- chemical bonds form as it
  dries, common name Franklins titebond

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Thermosets

• Alpha Cyanoacrylate- superglue, works well with
  metals, glass, plastics and other nonporous
• Ureaformaldehyde- powder form, water starts a
  chemical reaction, clamping time is about 6 hours

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Cements

• Solvent-borne contact cement- frequently used to
  bond veneer and plastic laminate to wood
• Mastic- thick contact cement applied with a
  caulking gun, generally used in the construction
  industry

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Glue

• Liquid Hide Glue- gaps well and moderate holding
  power
• Casein Glue- considered water-resistant
• Blood Albumin, Vegetable, and Fish glue- bond the
  veneers of interior plywood

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Trial Assemblies

• Place parts together and insure fit
• Part should fit together without excessive
  pressure from clamps
• Determine assembly method

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Applying Glue

• Spreading- applying glue
• Double spreading- applying glue on both sides
• Single spreading- applying glue to one side

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Clamps

• Bar clamps- 2 to 8 ft lengths, will exert up to
  600 lbs
• C-Clamps- compact clamping