Adhesives

• What are the permanent joining methods mentioned?

  Adhesives
• What is PVA and its appearance?

  White and creamy glue for wood
• What are the two types of PVA adhesives?

  Interior and Exterior
• What is contact adhesive and how is it applied?

  Rubber-based adhesive applied to both surfaces
• How long should contact adhesive be kept apart before bonding?

  10 minutes
• What is Araldite and how is it used?

  Trade name for Epoxy resin mixed in equal parts
• What materials can Araldite bond?

  Metal to wood, wood to plastic
• How long does Araldite take to harden?

  About 15 minutes
• What is Tensol Cement used for?

  Acrylic Cement used to join plastics
• Describe the consistency and strength of Tensol Cement.

  Watery, clear liquid that is not very strong
• How does Tensol Cement work on plastics?

  It melts the plastic along the area to be joined
• What is Superglue and its appearance?

  Thin, clear liquid that gives a strong bond
• Under what condition does Superglue provide a strong bond?

  When pressure is applied
• Who is not allowed to use Superglue in schools?

  Pupils