West System 206 B-Pack Slow Hardener, 1kg
€95.58
The WEST SYSTEM 206 B-Pack Slow Hardener (1kg) is a premium low-viscosity epoxy hardener designed for use with WEST SYSTEM 105 Epoxy Resin.
It provides extended working time, making it the ideal choice for large laminating jobs, complex bonding, boat repairs, composite fabrication, and applications in warm conditions.
The cured epoxy delivers exceptional strength, moisture resistance, and long-lasting durability for professional marine and industrial projects.
In stock
The WEST SYSTEM 206 Slow Hardener is a professional slow-curing epoxy hardener, designed for use with WEST SYSTEM 105 Epoxy Resin.
Its extended working time makes it ideal for yacht repairs, fiberglass laminating, wooden boat construction and structural bonding, allowing more time for careful application and positioning.
When combined with 105 Epoxy Resin, it creates a strong, rigid and moisture-resistant bond, suitable for demanding marine applications.
The 1kg B-Pack is ideal for boatyards, marine technicians and larger repair projects.
Working & Curing Times
| Property | Specification |
|---|---|
| Pot Life (100g mixture) | 20–30 minutes |
| Working Time (thin film) | 90–110 minutes |
| Cure to Solid State | 9–12 hours |
| Minimum Application Temperature | 16°C |
Times are approximate at 25°C. Higher temperatures and larger mixed quantities accelerate curing.
Technical Specifications
- Brand: WEST SYSTEM
- Product: 206 Slow Hardener
- Pack Size: 1kg (B-Pack)
- Type: Slow-Curing Epoxy Hardener
- Compatible Resin: WEST SYSTEM 105 Epoxy Resin
- Mixing Ratio: 5:1 (Resin to Hardener by volume)
- Viscosity: Low
- Cured Colour: Pale Yellow to Amber
- Applications: Bonding, Fiberglass Laminating, Marine Repairs and Barrier Coating
Important: This product contains the hardener only. WEST SYSTEM 105 Epoxy Resin is required and must be purchased separately. Not recommended for clear decorative coating applications.




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