50 LB Bag, White, Custom Blend Standard Thin Set Mortar, Offers Economy With Good Bond Strengths For Most Tile Projects & Floor Installations, Good For Setting Satillo & Other Clay Pavers, Meets ANSI A118.1. Meets ANSI 118.4.11 When Mixed With Acrylic Mortar Admix, Protected By Moldgard Technology To Resist Mold & Mildew Growth.