Sealing Concrete, Engineered Gypsum and Cements
RJSC offers a line of Sealers, Primers and Substrate Conditioners that have each been developed, tested and evolved over many years for specific chemical compatibility with defined substrates.

RJSC was among the first to develop products specifically for self-leveling cement. With over 1.5 million square feet installed over these substrates, RJSC has continuously refined products to meet the increasingly stringent requirements for adhesion, durability and slip safety characteristics. Additional products such as our G-Series™ Primer have been developed for specific compatibility with the newest gypsum-based materials.

Customers have the choice of dramatic color-enhancing epoxies and urethanes; or acrylics and urethanes that leave substrates virtually as is. Protection is available for virtually every type of potential chemical and physical contamination. We also offer a choice of finishes from Matte to Gloss, and including the highest durability Anti-Skid finishes available.

Whether clear or colored, over concrete or self-levelers, over a trowel-down cement or gypsum, the abrasion resistance of RJSC products make them todays systems of choice.

Please contact us with your requirements and we will advise as to the system that’s right for your project.


A water-dilutable, 2-part, UV stable polyurethane system for the most rigorous industrial, commercial and architectural installations; with extraordinary abrasion-resistance and durability. Colorable. Six finishes including the most durable Anti-Skid available.

A 2-part water-borne epoxy for use where "visual build" plus hardness, tensile strength and chemical resistance are required. Colorable.

Data Sheet
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Directions for Use
Usage and Cure
Post Application PreConautis
Over Acid


A newest generation high-durability epoxy for use as a finish coat for fast-track projects offers high abrasion resistance, virtually no yellowing over time, plus high flow and leveling. With about 51% solids, can be used in a thick film mode. For use over RJSC primers or directly over concrete, brick, engineered cement, and acid stains, as a color enhancing coating. The successor to RJSC’s StoneLok “E”.
Data Sheet
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Directions for Use
Over Acid
With Dye
Post Application PreCautions

A water-borne sealer made from minute particle-size polymers that penetrate tight surface matrices for superb protection against soiling and chemical contamination in light-medium traffic settings. Colorable.
Data Sheet
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Directions for Use
Directions for Applications to Stone
Usage and Cure
Post Application Care
Architectural Specifications

A versatile, clear and UV-stable, quick-drying aqueous sealer for concrete, cement and stone. Colorable. Used in dilution as TekSeal Dilute (TSD) with RJSC dyes to create color washes over concrete, cement and gypsum-based products.
Data Sheet
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Directions for Use
Directions for Use of TSD with RJSC Dyes
Mixing & Application of TSD with RJSC Dyes
Usage and Cure
Post Application PreCautions
Architectural Specifications

A proprietary, modified and chemically active amino-silane (not silicone) that can be used on rapid-set cements, limestone, marble and terra cotta to "wrap, bind and stabilize"the free inorganics and to increase the acceptance of coatings.

Data Sheet
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Directions for Use: 25 sq.ft. Unit
Directions for Use: 125 sq.ft.(NH) 5-bottle Unit
Directions for Use: 250 sq.ft.(NH) 9-bottle Unit
Directions for Use: 250 sq.ft.(H) Unit
Directions for Use: 500 sq.ft.(H) Unit
Directions for Use: 1250 - 1500 sq.ft.(H) Unit
Directions for Use: of Concentrate


A proprietary, modified and chemically active organo-silane (not silicone) that can be used on concrete and on substrates such as sandstone, flagstone and metals to strengthen and stabilize the surface prior to application of RJSC primers and coatings.

Data Sheet
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Directions for Use: 25 sq.ft.(NH) & 125 sq.ft.(NH) 2-bottle Units
Directions for Use: 250 sq.ft.(NH) 3-bottle Unit
Directions for Use: 500 sq.ft.(NH) 5-bottle Unit
Directions for Use: 500 sq.ft.(H) & 1250 sq.ft.(H) Units
Directions for Use: of Concentrate


The only non-flammable water-borne organo-silane available anywhere. Chemically “locks” potentially adverse surface conditions, strengthen and stabilizes the surface, and increases the chemical bond between sealer and substrate. For concrete, most engineered cements and natural stone.

B/W Data Sheet
Concentrate


Chemically engineered for superb adhesion to older and freshly poured concrete, other cementitious substrates, natural stone and acid-stained surfaces. Colorable.

A 2-component aqueous epoxy developed by RJSC specifically for its adhesion to and flow and leveling as a primer coat over USG’s PROFLOW.
Data Sheet
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Directions for Use
Directions for Use with Color @ 10-15%
Directions for Use with Color as Stains
Over Acid
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