<p>80 lb. SPEC MIX Poly Modified Stone Veneer Mortar is a specially designed mortar mix for applying decorative stone to concrete and masonry surfaces. The mix is designed to give the user superior bond strength over a standard mortar or mason mix. 80 lb. SPEC MIX Poly Modified Stone Veneer Mortar is a consistent, pre-blended mix that provides great workability and ease of use for the user.</p>