tech&des- adhesives

• PVA (Polyvinyl Acetate)


  Water based adhesive which is coloured white, works by soaking into the surface of the wood and setting once all the water is absorbed, makes an extremely strong bond often stronger than the wood fibres itself
• PVA


  • Permanent joining method
  • Used for wood to fabric
• Synthetic Resin


  Waterproof adhesive, needs to be mixed into a creamy consistency with water to set hard, chemical hardening takes place, sets as a hard but brittle adhesive
• Synthetic Resin


  • Used for wood to wood
• Liquid Solvent Cement


  Dissolves the surface of hard plastics such as Acrylic and High impact polystyrene, very dangerous and gives off fumes so must be used in a well ventilated room
• Liquid Solvent Cement


  • Used for plastic to plastic
• Hot Glue Guns


  Used a lot in schools for quick modelling of work, but not very strong
• Hot Glue Guns


  • Used for card to card/modelling
• Epoxy Resin


  Very flexible but very expensive adhesive, glues most dry and clean materials together, sets when equal amounts of resin and hardener are mixed together to form a very hard material
• Epoxy Resin


  • Used for plastics to metal, metal to metal
• Contact Adhesive


  Works when both material surfaces are coated and allowed to become touch dry, adhesion works as soon as the two touch dry surfaces meet, solvent fumes are tremendously dangerous and good ventilation is imperative
• Contact Adhesive


  • Used for plastics, woods to metals, metals to fabrics, metals to plastics and plastics to fabrics
• adhesive is any substance that causes two surfaces to stick together
• Adhesives can be classified into three main groups; natural, synthetic and structural.