Surface preparation: The performance and ultimately durability of the coating largely depends on the condition of the substrate. Therefore, conditioning and  preparation of the substrate is of utmost importance. Concrete surface: The surfaces shall be thoroughly cleaned to remove all dust particles and laitance. Surface defects like potholes and pinholes on building facades on the concrete shall be repaired with an appropriate polymer modified repair mortar.Metal surface:  The surface should be cleaned from all rust scales. This can be achieved by wire brushing or grit blasting. Priming: On new concrete surface the RHEOSEAL PU 700 HP coating can be applied directly. However, it is highly recommended to apply a
priming coat on all old and porous substrates for improving the adhesion of the subsequent coats.The priming coat can be prepared in
the work site by diluting RHEOSEAL PU 700 HP with only 10% clean potable water. The priming material shall be mixed thoroughly using a low RPM paddle mixer to ensure proper homogeneity of the mix. Primer application can be done using a brush or roller. For large areas theapplica-tion can also be done using an airless spray machine. The primer should be allowed to dry before applying subsequent coats for at least 6 to 8 hours. The area should be re-primed if there is a delay in the application of the topcoat for more than 24 hours depending on the area of application and the nature of the substrate. For higher strength and flexibility, insert a non-woven geotextile membrane whilst the first coat is still wet on all corner joints, fillets, and pipe penetration joints. Allow the coating to fully cure for 72 hours to achieve its full properties. Mixing: When a container is opened, the contents may have settled or separated over time, especially if the product has been sitting on a shelf or in storage for a while. Mixing the contents thoroughly can help to recombine any separated components and ensure that the product is at its intended consistency.
Topcoat: Application of RHEOSEAL PU 700 HP is to be done by using a suitable roller or brush. Large areas of application can be done by using an
airless spray machine. * The coating always must be applied with aminimum of 2 coats for optimum performance. The coverage rate will always vary depending on the area of application and the nature of the substrate Re-coat Interval 6 hours @ 40 °C. For higher strength and flexibili-ty, insert a non-woven geotextile membrane whilst the first coat is still wet on all corner joints, fillets, and pipe penetration joints. Allow the coating to fully cure for 7 days to achieve its full properties.