Multi-Tech's Acrylic Filler was originally developed by DuPont to withstand the harsh wet environment of spas and steam units. We have packaged and improved this white Acrylic Filler to better suit the demands of today’s repair industry. Delivering excellent adhesion, hardness and co-efficiency matching the characteristics of the acrylic sheet with minimal shrinkage. This white MMA based filler comes in workable paste that surpasses polyester type fillers. When applied properly, this filler delivers a non-pinhole, warrantable repair matching the characteristics of the acrylic sheet. Set time is only 10 to 20 minutes!