Superior E‐1500-S is a two‐part counter top and tile “setting” epoxy . It can be used over existing tile, plywood, backer board, cured concrete, masonry and much more. Although commonly used for setting stone counter tops, this adhesive is versatile and can be used is a variety of applications, Compare to other products designed for this use, The Part B can is located “inside” the Part A tub. Typically, all A&B parts are mixed together but mixing instructions on the label provide for smaller batches, Can be used for indoor and outdoor applications, Working time 2-3 hours