Hernon Tuffbond^® 302 Fast Cure Epoxy, Room Temperature Cure (50ml)

The Hernon Tuffbond® 302 Epoxy Adhesive provides a very fast room-temperature cure. Tuffbond 302 exhibits very good moisture chemical and heat resistance. This very fast cure epoxy adhesive is specially formulated for rapid in-line assembly of loudspeakers. Tuffbond 302 is also recommended for bonding metals, wood, ceramics, etc and can be used for potting and encapsulation of electrical and electronic components. 

Product Benefits

• Low shrinkage
• 100% reactive, non-solvent system
• Easy mixing ratio of resin and hardener
• No fuming on gelation

Uncured Properties:

• Viscosity at 25°C: 50,000-60,000cP

Cured Properties:

• Working Life at 22°C (20g): ≤ 5 minutes
• Durometer Hardness: 85-90 Shore D
• Glass Transition Temperature, Tg: 52°C (125.6°F)
• Coefficient of thermal expansion, ASTM D696 (K^-1) :
  • Below Tg: 18 x 10^-6
  • After Tg: 240 x 10^-6
• Operating Temperature: -54°C to 85°C (-65.2°F to 185°F)
• Coefficient of thermal conductivity, ASTM C 177: 0.567 W/(m·K)