Henry RC015042 Plastic Roof Cement, 1 Gallon Vinyl Top it forms a solid barrier

it forms a solid barrier to gases

Do not apply to a hot surface or if temperatures are to fall below 60 degree F

Metal Production & Fabrication

Depth: 4-1/4"

Henry RC015042 Plastic Roof Cement, 1 Gallon Vinyl Top it forms a solid barrierHighlights: Size: 1 Gallon Use as an emergency patching compound that provides good water resistance Repairs holes, cracks and splits on composition, smooth, and mineral cap sheet, asphalt coated, SBS modified, metal and masonry roof surfaces Repairs leaks in shingles, concrete, gutters, around chimneys and eaves Provides a permanent patch of unusual strength over most surfaces when reinforced with patching fabric or a suitable asphalt roofing