Products for concrete and masonry


SB2423 Seretreat 10% [OTC VOC 400]

SB Seretreat 2423 is a 10% solids siloxane resin solution in a low odor solvent carrier that gives deep penetration into the masonry surface for a long lasting hydrophobic effect. In most cases, there is little or no color change in the appearance of the treated masonry. SB 2423 is a reactive copolymer which does not require a catalyst and will treat all porous masonry to form a durable water repellent surface and subsurface. Successful applications have been made on brick, concrete, unpolished marble, limestone, unpolished slate and sandstone. SB 2423 has the same performance of 2422 but is formulated with special solvents to meet the more stringent VOC requirements of the Ozone Transport Commission (OTC) member states. Do not thin or dilute as this will likely violate VOC requirements. Product not suitable for most split face hollow core block.


SB 2423 is highly effective because it is extremely reactive with water. All surfaces, subsurfaces, and equipment must be completely dry to allow the material to penetrate before reaction with the substrate. Product may generate gas when stored for long periods of time. Carefully vent container when opening for the first time.

Protect all non masonry surfaces from dripping or over spray. Provide protection for windows, foliage, adjacent surfaces that are not to receive treatment, vehicle and pedestrian traffic. Take precautions to protect other surfaces from wind drift.

Using the method to be used on the project, apply an area of 10 square feet to calculate the coverage rate per gallon and to determine if there will be any unacceptable color change. All masonry surfaces should be clean, surface and subsurface dry prior to application.

Dilution and Coverage

Dilution: Product used undiluted — test application recommended.

Coverage: Approximately 70 to 200 square feet per gallon — dependent upon substrate and other conditions.


A spray application is preferred but roller and brush applica- tions can be successful as long as there is dry surface saturation. Spray equipment must be clean and equipped with solvent resistant hoses and gaskets. Apply with a coarse low pressure spray creating a saturating 6 to 10 inch run down of the fluid. On extremely porous surfaces, use 2 wet-on-wet applications. Do not allow material to “pond” on horizontal surfaces. Overspray on most non-porous surfaces can be removed with most window cleaners and a plastic scrubbing pad. Do not apply in conditions of condensing humidity (dew)
or if rain is expected within 12 hours of application or before all of the solvent has completely evaporated.

Technical Data

  • Appearance: Clear Liquid
  • Flash Point: 124 F
  • Odor: Little or None
  • Solubility: Reacts with Water
  • Stability: Good
  • Wetting Ability: Excellent


Flammable liquid and vapor. Suspected of damaging fertility or the unborn child.Refer to product SDS or product label for hazard statements, precautionary statements and safety information


Shore Corporation warrants that this product conforms to the chemical composition described in the Product Label. SHORE CORPORATION EXPRESSLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Shore Corporation shall not be responsible for any direct or consequential damages sustained as a result of the use of this product. Further, Shore Corporation shall not be liable for personal injuries, property damage or any other damages as a result of the use of this product, the sole responsibility of Shore Corporation under the within WARRANTY being the replacement of any nonconforming product. Acceptance and use of this product absolves Shore Corporation from any other such liability whatsoever and from whatever source. The within WARRANTY may not be modified or extended by Shore Corporation representatives or distributors, neither of which are empowered to make any product representation inconsistent with the terms hereof.


Trained representatives are available to assist with project assistance and product recommendations. Call 412/471-3330..

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