Acrylbond, 1-1/2 Gallon, Professional Grade Acrylic Mortar Additive, Use In Place Of Water In Un-Modified Thin Set Mortars To Provide Enhanced Performance Characteristics, Good Bonds To Plywood, For Porcelain Tile, Interior & Exterior Use, Meets ANSI A118.4 & A118.1 Specifications, Rated For Extra Heavy Commercial Traffic, 10 Year Warranty When Mixed With Full Set Mortars TS #589-914 or Sturdi Set Mortars TS #'s 168824, 168065 and 168564.