West System 206B Slow Hardener 1kg is a low-viscosity epoxy hardener designed for use with West System 105 Resin. It is ideal for applications where a longer working time and slower cure are required, particularly when working at higher temperatures.

When mixed with West System 105 Resin at the recommended 5:1 resin-to-hardener ratio, West System 206B Slow Hardener produces a rigid, high-strength and moisture-resistant epoxy resin system. The cured mixture provides excellent bonding and coating properties, making it suitable for a wide range of marine, boatbuilding, repair, construction and general epoxy applications.

Key Features

• Low-viscosity slow epoxy hardener
• Designed for use with West System 105 Resin
• Provides an extended working and cure time
• Particularly useful when working at higher temperatures
• Produces a high-strength, rigid and moisture-resistant cured epoxy
• Excellent bonding and coating properties
• Suitable for marine, boatbuilding, repair and general epoxy applications
• 1kg pack size

Mixing Ratio

Mix West System 206B Slow Hardener with West System 105 Resin at a 5:1 ratio by weight or volume:

• 5 parts West System 105 Resin
• 1 part West System 206B Slow Hardener

Always follow the manufacturer’s instructions for the correct mixing procedure and application.

Cure Times and Working Properties

At 25°C:

• Pot life: 20–30 minutes

At 21°C:

• Cure to a solid state: 9–12 hours
• Cure to maximum strength: 5–7 days

Minimum recommended working temperature: 16°C.

Applications

West System 206B Slow Hardener is suitable for applications where additional working time is beneficial, including:

• Boatbuilding and marine repairs
• Epoxy bonding
• Fibreglass and composite work
• Sealing and coating
• Woodworking and timber repairs
• General construction and repair applications

If you need a slow-curing epoxy hardener for extended working time, West System 206B Slow Hardener is designed to provide reliable curing performance when used with West System 105 Resin. Its slower cure makes it particularly useful for larger projects and applications where additional time is required for positioning, bonding or coating.

For best results, use West System 206B Slow Hardener with West System 105 Resin at the recommended 5:1 mixing ratio and follow the manufacturer’s application and safety instructions.