AFM Safecoat Caulking Compound is a non-toxic, indoor-outdoor flexible emulsion type of caulking compound designed to replace oil caulk and putty for windows, cracks, tub and shower enclosures, and general maintenance. It will not dry out or crack and does not release any solvents or harsh odors. Provides a water-proof, easy-to-install sealant with excellent initial and permanent adhesion.