Loading…
GCSE Design and Technology · key term
An adhesive applied to both joining surfaces and left until ready for bonding before the surfaces are pressed together, producing an immediate bond.
Used by Edexcel
Specification 2.7.4, 4.7.3, 7.7.3 · Paper 1
Revise: Assembling MethodsContact adhesive and epoxy resin have different application methods and are useful for different jobs.
An adhesive applied to both mating surfaces and left touch-dry before the surfaces are brought together to form an immediate bond.
Distinguish contact adhesive from epoxy resin: contact adhesive bonds when the prepared coatings are pressed together; epoxy cures through a chemical reaction after resin and hardener are mixed.
Contact adhesive bonds immediately when the prepared surfaces meet; epoxy resin sets through a reaction between resin and hardener.
Contact adhesive bonds immediately on contact, but this does not mean it has reached its full cured strength.
Create a free account to keep every note you open and track your progress.
An adhesive applied to both surfaces and allowed to become ready for bonding before the surfaces are pressed together, producing an immediate bond.
