Several different kinds of products are referred to as mastic.
Roof mastic sealant.
Light gray liquid wet patch elastomeric sealant for roof repairs.
Many hardware stores carry these products and they can also be ordered by special arrangement.
Generally speaking roof mastics are sticky drying to a flexible rubbery finish after they are applied and allowed to cure.
Roof mastic is a roofing product used to seal a roof so water cannot penetrate.
Properly a thick paste applied by trowel putty knife or using a caulking gun and used to seal.
There are two general classes of sealant or coating products used on roofs.
Properly liquid coatings applied by roller or brush onto large areas of a roof surface.
Light gray liquid wet patch elastomeric sealant for roof repairs.
Gaf roof mate acrylic flashing 2 gal.
Mastic butyl meets astm and federal standards is non staining and permanently flexible mastic butyl tape sealant is a highly rubbery tacky reinforced compound designed for sealing metal lap joints on roof and wall panels.
Item 1571717 model 40003975.