ARALDITE® AV 170

• Cures at 140 - 180°C
• Heat resistant to 120°C
• Very good peel strength
• Good chemical resistance
• Gap filling to 3mm
• Contains spacers to ensure a minimum bond line thickness of 0.05 mm

• Pretreatment: The strength and durability of a bonded joint are dependant on proper treatment of the surfaces to be bonded. At the very least, joint surfaces should be cleaned with a good degreasing agent such as acetone or other proprietary degreasing agents in order to remove all traces of oil, grease and dirt. Low grade alcohol, gasoline (petrol) or paint thinners should never be used. The strongest and most durable joints are obtained by either mechanically abrading or chemically etching (“pickling”) the degreased surfaces. Abrading should be followed by a second degreasing treatment
• Application of adhesive: The resin/hardener mix is applied with a spatula to the pretreated and dry joint surfaces. A layer of adhesive 0.05 to 0.10 mm thick will normally impart the greatest lap shear strength to the joint. The adhesive contains spacers to ensure a minimum bond line thickness of 0.05 mm. The joint components should be assembled and clamped as soon as the adhesive has been applied. An even contact pressure throughout the joint area will ensure optimum cure.
• Mechanical processing: Specialist firms have developed metering, mixing and spreading equipment that enables the bulk processing of adhesive. We will be pleased to advise customers on the choice of equipment for their particular needs.
• Equipment maintenance:  All tools should be cleaned with hot water and soap before adhesives residues have had time to cure. The removal of cured residues is a difficult and time-consuming operation. If solvents such as acetone are used for cleaning, operatives should take the appropriate precautions and, in addition, avoid skin and eye contact.

Note: Temperatures below 140°C will not give adequate cure even when cure time is prolonged.
Cure temperature above 150°C should be avoided when joining materials of different coefficients of linear thermal
expansion; otherwise stresses will be set up in the bond line on cooling. This effect is particularly marked where the bond
surfaces are large.
At 220°C, cure time should not exceed 60 minutes

• ARALDITE® AV 170 must be stored for up to 2 years at 2 - 8°C.
• At 15 - 25°C the life of the product is 6 months after removal from storage at 2 - 8°C.