West System Slow Hardener 2.5lbs 27.5 oz Mustang 404 High-Density filler is a

404 High-Density filler is a thickening additive developed for maximum physical properties in hardware bonding where high-cyclic loads are anticipated

When mixed with the 105 Resin in a five-part resin to one-part hardener ratio

The ultra-flexible (Type 3) stranding resists fatigue due to vibration and flexing

Color: off-white

CE marked for Europe and CSA certified for Canada

West System Slow Hardener 2.5lbs 27.5 oz Mustang 404 High-Density filler is a206 Slow Hardener is a low viscosity epoxy curing agent for use when extended working and cure time is needed or to provide adequate working time at higher temperatures. When combined with 105 Resin in a five part resin to one part hardener ratio, the cured resin hardener mixture yields a rigid, high strength, moisture resistant solid with excellent bonding and coating properties. Not intended for clear coating.