PS109 is a penetrating, 100% chemically reactive solvent based alkyltrialkoxysilane which repels water and moisture from concrete and masonry offering invisible protection and a low VOC. At only 5 angstroms, its small particle size makes it ideal for very dense substrates made of high performance concrete such as cast in place, poured in place, and reinforced surfaces. It penetrates deeply and chemically reacts with concrete and masonry components for long lasting protection. PS109 seals pores and capillaries of substrates preventing liquid and moisture absorption while allowing excellent vapor transmission. It combats efflorescence, freeze/thaw damage, deicing chemicals, acid rain deterioration, salt intrusion, UV damage, scaling and spalling, dirt buildup and staining, mold and mildew, alkali attack, and corrosion of reinforcing steel. It is designed to provide a high level protection against wind driven rains. The PS109 is non-etching and will not harm uncoated glass windows, metal frames, or painted surfaces and leaves no residue to clean. It is also UV resistant and nonyellowing. PS109 has a clear appearance. Upon proper application, the substrate will have little, or no, noticeable change in appearance when dry. PS109 is recommended for sealing dense concrete and masonry surfaces. It is ideal for sealing commercial and residential structures such as parking lots and structures, marine structures, loading docks, median barriers, bridge decks, pavements, piers, ramps, plazas, courtyards, and balconies. It is also recommended for home and building exteriors, driveways, sidewalks, walkways, porches, steps, pool decking, patios, and other concrete and masonry surfaces. It is suitable for horizontal or vertical and interior or exterior applications. Not intended for below grade waterproofing.This product is not oleophobic and is not intended as an oil repellent or for maximum protection against staining. It is also not a topical sealer/ coating so it does not 100% block water from absorbing into a surface nor is it intended to provide the water beading action of a topical sealer/ coating. Please also closely read through the Technical Data Sheet in the Product Information section below in its entirety prior to purchasing this product. It can be found as a link under the Technical Specification heading and is also downloadable.We recognize that not all customers are concrete sealer experts. We also know that given all the concrete sealer types and options available that selecting a sealer can be very confusing. So, to the extent you think you could benefit from a brief call with one of our Technical Representatives, please reach out to us at our 800 number for any questions you may have. We are available from 8:30 am to 5:00 pm CST, M-F. If we are not available when you call and it is during these hours, it is because we are helping other customers. Simply leave a vmail and you will be contacted by the end of our business day, if not much sooner. Any vmails left for us outside of our normal business hours will be returned the next business day. Calls generally prove to be useful in helping customers (especially first time users of this type of product) to double check that they in fact are purchasing the correct product, the product is indeed suitable for their application, and, most importantly, the product is going to meet their expectations.
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