404 High-Density Adhesive Filler (West System)- Off-White- 15 oz- A thickening additive developed for maximum physical properties in hardware bonding where high-cyclic loads are anticipated. - Can also be used for filleting and gap-filling where maximum strength is necessary. - May be added to the resin/hardener at a rate of 20–30% by weight, depending on the viscosity needed.
- Use this filler when ultimate strength is most important