206 Slow Hardener is a low-viscosity epoxy curing agent for use when extended working and cure time is needed or to provide adequate working time at higher temperatures. When combined with 105 Resin in a five-part resin to one-part hardener ratio, the cured resin/hardener mixture yields a rigid, high-strength, moisture-resistant solid with excellent bonding and coating properties. Not intended for clear coating.

Use a pump kit, sold separately to mix WEST SYSTEM #105 Resin and hardeners in the correct proportions. For hardeners #205 (Fast) and #206 (Slow) in Group Sizes A, B and C, select the #300 Mini Pump Kit, Model 3405669. For larger group sizes of #205 and #206, use the “Model A” #306-25, Model 335703.

• Mix Ratio, Resin:Hardener 5:1 by weight or volume
• Pot life at 72°F (22°C): 20 to 25 minutes
• Cure to a solid state: 9 to 12 hours
• Cure to maximum strength: 1 to 4 days
• Minimum recommended temperature: 60°F (16°C)
• Pumps required: 300, 306-25