


WEST SYSTEM 205 Fast Hardener – Rapid Cure & Strong Bonding
WEST SYSTEM 205 Fast Hardener is a medium-viscosity epoxy curing agent designed for general-purpose bonding and coating applications. With a rapid cure time, it is ideal for use in lower temperatures, quickly achieving full physical properties at room temperature.
When mixed with WEST SYSTEM 105 Epoxy Resin at a 5:1 ratio (resin to hardener), the resulting epoxy forms a rigid, high-strength, and moisture-resistant solid with excellent adhesion and durability.
Key Features:
✔ Fast Cure Time – Ideal for projects requiring quick handling and turnaround
✔ High-Strength Bonding – Provides superior adhesion and durability
✔ Works in Lower Temperatures – Minimum application temperature as low as 4°C / 40°F
✔ Not Suitable for Clear Coating – Best used for structural bonding and laminating
Technical Specifications:
🔹 Mix Ratio: 5:1 (Resin to Hardener)
🔹 Pot Life (at 22°C / 72°F): 9 – 12 minutes
🔹 Cure to Solid State: 6 – 8 hours
🔹 Full Cure: 1 – 4 days
🔹 Minimum Application Temperature: 4°C / 40°F
Available Sizes (Resin to Hardener Ratios):
📦 500ml 105 Resin : 100ml 205 Hardener
📦 1L 105 Resin : 200ml 205 Hardener
📦 4L 105 Resin : 800ml 205 Hardener
For best results, use with WEST SYSTEM 105 Epoxy Resin (Part A) (sold separately). Ideal for marine, woodworking, and composite applications, providing strong, reliable, and moisture-resistant performance.