West System 206 Slow Hardener

Extended Working Time Epoxy Hardener for West System 105 Resin

West System 206 Slow Hardener (21204722) is a premium epoxy curing agent designed to provide extended working time when used with West System 105 Epoxy Resin.
Formulated for structural bonding, coating and composite laminating applications, 206 Slow Hardener allows more time for positioning, fibre wet-out and complex lay-ups before initial set. This makes it ideal for larger laminations, warmer climates and detailed marine or woodworking projects where precision is critical. When mixed at the recommended ratio with 105 Resin, it produces a high-strength, moisture-resistant epoxy system with excellent durability. Compared to fast cure hardeners, 206 Slow Hardener reduces exotherm in larger batches and supports improved laminate consolidation. Widely trusted in Australian boat building, timber construction and composite fabrication industries, it delivers dependable structural performance with greater application flexibility.

Features & Benefits

Key Features

• Slow cure epoxy hardener
• Designed for West System 105 Resin
• Extended working time for complex applications
• High-strength structural performance
• Moisture-resistant cured epoxy

Key Benefits

• Allows more time for precise positioning and lay-up
• Reduces heat build-up in larger mixes
• Enhances fibre wet-out in composite work
• Provides durable, long-lasting bonds
• Ideal for warm conditions and large projects
  
  

Technical Specs

• Product Type: Epoxy hardener – Part B
• System: West System 206
• Compatibility: West System 105 Resin
• Mix Ratio: As specified by manufacturer
• Product Code: 21204722
  
  

Key Applications

• Marine boat building and repairs
• Large composite laminations
• Timber bonding and structural joinery
• Fibreglass reinforcement
• Industrial fabrication and assembly
  
  

West System 206 Slow Hardener (21204722) FAQs

Q1: What is West System 206 Slow Hardener (21204722) used for?
A: It is used with West System 105 Resin to create a slow-curing structural epoxy system.

Q2: Can this hardener be used on its own?
A: No, it must be mixed with West System 105 Resin to cure correctly.

Q3: How does 206 Slow differ from 205 Fast?
A: It provides a longer working time, allowing more time for positioning and laminating before set.

Q4: Is this suitable for marine applications?
A: Yes, it is widely used in boat building and marine structural repairs.

Q5: Does it provide strong structural performance?
A: Yes, when mixed correctly it forms a durable, moisture-resistant epoxy bond.

Downloads

• Safety Data Sheet (SDS)