Description Smooth, Easy-Working Compound For Glazing Wood, Metal And Aluminum Sash. Resists Cracking, Sagging, And Chalking. WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov