The concrete or screed substrate must be hard, sound, and free of dust and other barrier materials such as paint, lime coatings, plaster, curing agents, laitance, adhesive residues, etc., which may inhibit adhesion. All surfaces must be thoroughly mechanically prepared, cleaned, and made good to ensure proper mechanical keying and adhesion. Use a suitable degreaser to remove polish, wax, grease, oil, and similar contaminants before mechanical preparation. Contaminated concrete surfaces should be mechanically prepared by scabbling, grinding, or contained shot blasting equipment and then vacuumed clean before applying SLP - 11. Overwatered or otherwise weak concrete surfaces must be adequately prepared to expose sound, solid concrete. Remove dust and other debris using vacuum equipment. Any joints or cracks in the concrete base where differential movement is anticipated (e.g., movement joints) should be brought through to the finished surface and suitably sealed. New concrete slabs must be allowed to cure for at least 14 days.

Storage and Shelf Life SLP - 11 should be stored under the same conditions as cement: in cool, dry, shaded warehouses. It should not be stored in direct contact with the floor. When stored under the correct conditions, SLP - 11 will have a shelf life of 9 months.