Seal-Tek Micro Fibers are micro-fine, high-tensile, polyethylene fibers used as a general thickener in silicone, acrylic, and urethane coatings to increase tensile strength, reduce sag, and thicken the coating into a roll or brushable mastic. Thicker materials allow for fabrication of cantsand filling around irregular surfaces. The process can adapt the mastic product to the project's need and conditions. Seal-Tek Micro Fibers can be added to SeamlesSEAL® Acrylic and SeamlesSEAL ULTRA Silicone coatings to create an excellent repair material for hail and mechanical damages to spray polyurethane foam (SPF) and coated roofing systems.