APPLICATION: Rectorseal duct seal compound is a gray, soft, non-toxic, putty-type compound that adheres to most clean dry surfaces; Duct Seal can be hand-molded to any form and reused if necessary EASY TO USE: The putty like duct sealant compound is easy to use and can be hand applied from 25°f to 120°f; can be applied to electrical conduit ends and boxes, flashings, and service mast entries SUPERIOR FORMULA: Duct seal creates an air and water tight seal; resistant to water, alcohol, and mild acids and bases; duct seal compound is asbestos-free; it will not damage plastic materials, corrode metals, or have adverse effect on human skin SPECIFICATIONS: Duct seal compound; grey in color and putty like; non-corrosive and non-irritant; can be hand-shaped to any form and reused if necessary, has many applications in hvac/r, plumbing, metal fabrication, and a superb general purpose sealant around the home; may be painted immediately after applying and won't bleed through dry paint film FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets Material Putty Brand Rectorseal Style 1 lb Item Weight 0.45 Kilograms Item dimensions L x W x H 6.5 x 3 x 3 inches RectorSeal Duct Seal 81880 Compound, Easily Applied to Plumbing & Metal Fabrication, Paintable General Purpose Sealant, 1 lb: Industrial & Scientific