OverviewThe 209C extra slow hardener is formulated for use with resin 105 for general coating and bonding applications in extremely hot and/or humid conditions (tropical climates) or when extended working time is required at elevated temperatures. The 105/209 blend provides approximately twice the pot life and working time of the slow hardener 206 and cures to a clear amber solid with good moisture resistance and physical properties suitable for bonding and laminating.
Key uses- Coating and general bonding in extreme heat and/or humidity (tropical climates)
- Applications requiring extended working time at elevated temperatures
- Compatibility with WEST SYSTEM 105 resin (use as 105/209 system)
Limitations- Not intended for transparent/clear finish coatings
- Sold without pumps; pump required for 3:1 dispensing: 303-C (ref WS303C)
Performance & cure times- Mix ratio (resin : hardener): 3:1
- Pot life at 22°C: 50–70 minutes
- Pot life at 35°C: 20–30 minutes
- Hardening to solid at 22°C: 20–24 hours
- Hardening to solid at 35°C: 6–8 hours
- Curing to full strength at 21°C: 5–9 days
- Minimum recommended working temperature: 18°C
Physical properties- Forms a clear amber solid when cured
- Good moisture resistance and physical characteristics for bonding and laminating
Data sheet / Product details- Brand: WEST SYSTEM
- Product type: Hardener (extra slow)
- Reference / SKU: WS209C
- Associated pumps: 303-C (ref WS303C) for 3:1 ratio
- Pack size shown in title: 7.2 kg (2x3.6 kg)
Technical specifications- Reference (SKU): WS209C
- Model: 209C
- Brand: WEST SYSTEM
- EAN / GTIN13: 5063369020923
- Pack size (title): 7.2 kg (2x3.6 kg)
- Product weight (meta): 8.000000 kg
- Price (pre-tax): 395.44 EUR
- Mix ratio / Pumps: 3:1 ratio – pump 303-C (ref WS303C)
- Pot life (22°C): 50–70 minutes; (35°C): 20–30 minutes
- Hardening to solid (22°C): 20–24 hours; (35°C): 6–8 hours
- Curing to full strength (21°C): 5–9 days