West System 209 Extra Slow Hardener for 105 Epoxy
SKU 209SA
by West System
Original price
$69.30
-
Original price
$453.27
Original price
$69.30
$69.30
-
$453.27
Current price
$69.30
West System 209 Extra Slow Hardener gives 105 Epoxy Resin the longest working time for hot, humid conditions and very large jobs, with up to 3–4 hours of thin-film working time at 72°F.
Features
- Longest working time: 3–4 hours thin film at 72°F
- For hot, humid conditions up to 110°F (43°C)
- Use above 70°F (21°C)
- 3:1 mix ratio with 105 Resin; meter with 300 Mini Pumps
- Not intended for clear coating (use 207 for a clear finish)
Recommended Uses
- Big laminations and assemblies in hot weather
- Hot, humid climates
- Jobs needing maximum working time
Specifications
| Property | Details |
|---|---|
| Mix ratio (105:209) by volume | 3:1 |
| Mix ratio by weight | 3.68:1 |
| Mixed viscosity @ 72°F | 650 cps |
| Pot life (100 g @ 72°F) | 40–50 minutes |
| Working time (thin film @ 72°F) | 3–4 hours |
| Cure to a solid | 20–24 hours |
| Cure to maximum strength | 4–9 days |
| Minimum application temperature | 70°F (21°C) |
| Hardness (Shore D) | 82 |
| Tensile strength | 7,300 psi |
| Tensile elongation | 3.6% |
| Flexural strength | 12,500 psi |
| Compression yield | 12,000 psi |
| Heat deflection temperature | 117°F |
| Ultimate Tg | 130°F |
| Available sizes | 209-SA 0.66 pt (311 mL), 209-SB 0.33 gal (1.24 L) and 209-SC 1.45 gal (5.5 L), sized to 105-A, 105-B and 105-C |
Data Sheets