Where To BuyThe long-term durability of any resin floor system is determined by the adhesive bond achieved between the flooring material and the substrate. It is most important therefore that substrates are correctly prepared prior to application. These should normally have been placed for at least 28 days and have a moisture content of less than 5%. The compressive strength of the substrate concrete must be at least 25 N/mm² and its tensile strength must be at least 1.5 N/mm². The strength of the substrate must also be suitable for its final use and the types of load to which it will be subjected after system installation.
The substrate must be structurally sound. Loose or unsound concrete should be removed & made good. Surfaces must be entirely free of oil, grease, paint, corrosion deposits, dust, laitance, curing compound residues, or other surface deposits. Repair to the substrates, filling of blowholes/ voids and surface leveling must be done before coating application.
The preferred method for surface preparation of concrete is captive blasting. This produces a well-prepared laitance-free, the vacuum-cleaned surface to produce a lightly exposed aggregate surface. Alternatively, the use of light mechanical scabbling, grit/shot-blasting, or grinding with a diamond disk, followed by vacuum cleaning can also be utilized. Surface irregularities must be ground down or filled out with RepairPro EP FC/ RepairPro EP FCB or repair materials from RepairPro range.
Priming/ Sealing:
Priming is not normally required provided the substrate is sound, untreated, and good quality nonporous concrete. If any doubts exist about the quality of the concrete, or if it is porous it should be primed with FloorPro Primer SF. Work the primer well into the surface of the concrete taking care to avoid ponding or over-application. The primer should be left to achieve a tack-free condition before applying the topcoat. The second coat of primer may be required if the substrate is excessively porous.