4 OZ, Hercules Propoxy20, Seals, Mends, Bonds, & Repairs Almost Anything, Even Under Water, Single Stick 2 Part Epoxy Compound Mixes Quickly & Easily & Adheres To Metals, Masonry, Wood, Glass, Ceramics & Some Plastics, Can Be Applied To Damp Or Wet Surfaces, Withstands Temperatures To 300 Degrees Fahrenheit, Resistant To Many Acids, Caustics, Fuel Oil Gasoline & Other Solvents, Compression Strength 18,000 PSI, Tensile Strength 6,000 PSI, When Cured In 20 Minutes, May Be Drilled, Sanded, Filed & Painted , Conforms To NSF Standard 61 & Is Safe For Use With Potable Water.