WEST SYSTEM 104 Junior Pack is a 600g pack of West System epoxy (105-205). Designed for the small user or a refill for the Handy Repair Pack. WEST SYSTEM 104 Junior Pack is a 600g pack of West System epoxy (105-205). WEST SYSTEM 104 Junior Pack is designed for the small user or a refill for the Handy Repair Pack. Pack Contents: 1x WEST SYSTEM 105 Resin 500g 1x WEST SYSTEM 205 Hardener 100g WEST SYSTEM 105 105 Epoxy Resin is the base material on which all WEST SYSTEM 105 System epoxy compounds are built. It is a clear, pale yellow, low-viscosity liquid epoxy resin. Blended with hardener at the proper ratio, it cures to a hard, solid plastic with superior physical properties. Based on which hardener you choose, it cures at a wide range of temperatures. Once cured, it forms a high-strength solid that is functionally waterproof, and highly resistant to moisture vapour. WEST SYSTEM 205 205 Fast Hardener is a medium-viscosity epoxy curing agent. It is useful in a majority of bonding situations, and at lower temperatures. 205 Fast Hardener produces a rapid epoxy cure that develops physical properties quickly at room temperature. Mix it with WEST SYSTEM 105 Resin in a five-part resin to one-part hardener ratio. The resulting cured epoxy is a rigid, high-strength, moisture-resistant solid. The combination of 105 Resin/205 Fast Hardener has excellent bonding and coating properties.
