West System 205 Fast Hardener for 105 Epoxy Resin
SKU 205A
by West System
Original price
$42.60
-
Original price
$329.00
Original price
$42.60
$42.60
-
$329.00
Current price
$42.60
West System 205 Fast Hardener is the most-used hardener for 105 Epoxy Resin. It cures quickly, down to 40°F (4°C), giving a strong, moisture resistant epoxy for general bonding, barrier coating and fabric laminating in cooler conditions.
Features
- Fast cure for cool temperatures, down to 40°F (4°C)
- 60–70 minute thin-film working time at 72°F
- High physical properties for structural bonds
- 5:1 mix ratio with 105 Resin; meter with 300 Mini Pumps
- Not intended for clear coating (use 207 for a clear finish)
Recommended Uses
- General bonding, coating and laminating in cool conditions
- Fast barrier coating and fairing
- Production work where quick turnaround matters
Specifications
| Property | Details |
|---|---|
| Mix ratio (105:205) by volume | 5:1 |
| Mix ratio by weight | 5.19:1 |
| Mixed viscosity @ 72°F | 975 cps |
| Pot life (100 g @ 72°F) | 9–12 minutes |
| Working time (thin film @ 72°F) | 60–70 minutes |
| Cure to a solid | 6–8 hours |
| Cure to working strength | 1–4 days |
| Minimum application temperature | 40°F (4°C) |
| Hardness (Shore D) | 83 |
| Tensile strength | 7,900 psi |
| Tensile elongation | 3.4% |
| Flexural strength | 14,100 psi |
| Compression yield | 11,400 psi |
| Heat deflection temperature | 118°F |
| Ultimate Tg | 142°F |
| Available sizes | 205-A 0.44 pt (207 mL), 205-B 0.86 qt (0.81 L) and 205-C 0.94 gal (3.6 L), sized to 105-A, 105-B and 105-C |
Data Sheets