- Product Reviews
3M 08578, Strip-Caulk, Black
3M 8578 is a soft non-hardening caulking material in one foot lengths for use in all types of seams, joints and openings. Easily thumbed in place and smoother with fingers. May be painted immediately. Has non-sag consistency for vertical and overhead applications. Adheres well to metal, paint, glass, and rubber. 3M Strip-Caulk is waterproof, will not shrink, crack, or dry out.