Static mixer replacments designed for use with ASTC Polymers’ 21 oz dual cartridge polyurea joint filler and concrete crack repair kits.  Each cartridge kit is sold with (1) static mixer per 21 oz kit.  These are additional static mixers for use when you you don’t anticipate using an entire cartridge in one application. Replacement static mixers allow multiple applications of product from an individual dual cartridge kit.  Static mixers allow for proper mixing of product such that material coming out the end of the mixer is ready to be applied.  Tip can be cut to various lengths to adjust for width of flow coming out the end