Just add water. There’s no blending of powders or latex additives, simply add water to produce a thick bed mortar or render with exceptional strength thanks to Laticrete’s 3701 Fortified Mortar Bed. The one-step polymer is blend of raw materials, portland cement and graded aggregates that offers all of the same benefits of the company’s Mortar Admix and 226 Thick Bed, providing superior strength for conventional, bonded or non-bonded thick bed mortar applications. Depending on the application, It’ll be ready for foot traffic in 16 hours.