WEST SYSTEM 209 EXTRA SLOW HARDENER

207 Special Clear Hardener® was developed for coating and fiberglass cloth application where an exceptionally clear, moisture-resistant, carbon fiber or natural wood finish is desired. 207 Special Clear Hardener will not blush or turn cloudy in humid conditions. Thin film applications roll out and tip off smoothly, requiring less sanding in preparation for finish coatings. The mix ratio is 3 parts resin to 1 part hardener by volume.

209 Extra Slow Hardener® is formulated for use with WEST SYSTEM® 105 Epoxy Resin® or general coating and bonding applications in extremely warm and/or humid conditions or when extended working time is desired at room temperature. Provides approximately twice the working time of 206 Slow Hardener®. 105/209 forms a high-strength, moisture-resistant solid with excellent bonding and coating properties. The mix ratio is 3 parts resin to 1 part hardener by volume. Not intended for clear coating.

Project Uses:

• Marine
• Boat Repair
• Bonding
• Fabrication
• Barrier Coating

Cure Time:

• Pot life (100 grams cupful):
  
  • At 72°F (22°C): 40 to 50 minutes
• Working time (thin film):
  • At 72°F (22°C):  3 to 4 hours
• Solid state:
  • At 72°F (22°C): 20 to 24 hours
    

Cure Temp:

• Minimum at 65°F (18°C)

Manufacturer Nos.:

• 209-SA (0.66 pint)
• 209-SB (0.33 quarter)
• 209-SC (1.45 gallon)
• 209-SE (17.34 gallon)