Several different kinds of products are referred to as mastic.
Roof mastic sealant.
It is easy to apply and compress during installation.
Roof mastic is a roofing product used to seal a roof so water cannot penetrate.
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.
There are two general classes of sealant or coating products used on roofs.
Gaf roof mate acrylic flashing 2 gal.
Light gray liquid wet patch elastomeric sealant for roof repairs.
Properly liquid coatings applied by roller or brush onto large areas of a roof surface.
Generally speaking roof mastics are sticky drying to a flexible rubbery finish after they are applied and allowed to cure.
Properly a thick paste applied by trowel putty knife or using a caulking gun and used to seal.
Light gray liquid wet patch elastomeric sealant for roof repairs.
Simiron tektop 5 gallon epoxy acrylic wbgray primer roof sealant.