West System 206 Slow Hardener is a low-viscosity epoxy curing agent designed to pair with West System 105 Epoxy Resin. When used together, they deliver a noticeably longer working time and a slower, controlled cure—perfect for larger projects, intricate assemblies, and applications where you need extra handling time in warmer conditions.

Available in convenient pack sizes—200 ml, 800 ml, and 2 litres—so you can match the exact volume to your project scale without waste.

• Extended working time with a pot life of 20–25 minutes at 21°C, giving you ample time to align parts, apply coatings evenly, and manage complex laminations.
• Better in warm environments — the slower cure helps minimize heat buildup and exotherm on larger pours or in warmer climates.
• Strong, waterproof bonds — cures to a tough, moisture-resistant solid with excellent adhesion to wood, metal, and composites, delivering durable performance in demanding conditions.
• Versatile use — ideal for laminating, coating, glazing, and structural bonding in marine, woodworking, and DIY projects where reliability matters.
• Precise mix and safe handling — designed to be used at a 5:1 ratio with West System 105 Resin; always measure accurately and follow the safety recommendations for the best, safest results.

Choosing West System 206 Slow Hardener means tapping into a proven epoxy system trusted by professionals for consistent, repeatable results. It’s especially advantageous when you need to maintain fibre orientation, achieve flawless finishes, or work on multi-stage assemblies without rushing the cure.

Tips for best results: mix thoroughly to ensure a uniform resin-hardener blend, use within the recommended pot life, and work in a well-ventilated area. Store in a cool, dry place and only mix the amount you’ll use in one session to minimize waste.