Properly a thick paste applied by trowel putty knife or using a caulking gun and used to seal.
Roof mastic sealant.
There are two general classes of sealant or coating products used on roofs.
Generally speaking roof mastics are sticky drying to a flexible rubbery finish after they are applied and allowed to cure.
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.
Simiron tektop 5 gallon epoxy acrylic wbgray primer roof sealant.
Several different kinds of products are referred to as mastic.
Light gray liquid wet patch elastomeric sealant for roof repairs.
Gaf roof mate acrylic flashing 2 gal.
Properly liquid coatings applied by roller or brush onto large areas of a roof surface.
Many hardware stores carry these products and they can also be ordered by special arrangement.
Item 1571717 model 40003975.