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Weather Sealants

PROSOCO's SURE KLEAN Weather Seal Protective Treatments
For decades, these remarkable treatments have helped control maintenance, repair and cleaning costs on masonry, concrete and natural stone. From roads and bridges to schools and skyscrapers, professionals choose the industry's leading siloxane technologies to protect and extend the service life of our built environment.

Weather Seal Siloxane PD
For architectural and steel-reinforced concrete, GFRC, and most masonry and stucco surfaces

Ready to go to work when you are, Weather Seal Siloxane PD (Predilute) penetrates deeply into your masonry. It chemically bonds with the substrate to lock out water and the destructive salts and dirt water carries. When you keep water out, you keep out spalling, cracking, staining, mold, mildew and other expensive problems. Breathable, water-based Siloxane PD is low odor, suitable for new "green" concrete, and ideal for field or in-plant treatment of concrete or GFRC. Service Life: 10 years+

Weather Seal Siloxane WB Concentrate
For architectural and steel-reinforced concrete, GFRC, and most masonry and stucco surfaces

Water-based Weather Seal Siloxane WB Concentrate provides penetrating, breathable protection for dense or porous substrates. It's concentrated for economy, easy storage, transport and container disposal. Dilute at the jobsite with up to 19 parts water. The solvent-free treatment can protect up to 4,000 square feet per gallon. Siloxane WB is low-odor, suitable for new "green" concrete, and ideal for field or in-plant treatment of concrete. Cleanup is easy with soap and water or Stand Off Rinseless Cleaner. Service Life: 10 years+

Weather Seal Natural Stone Treatment
For natural stone and clay brick

Weather Seal Natural Stone Treatment was a "natural" for protecting the Empire State Building's Indiana limestone cladding in 1995. Specifically developed to impart the power of siloxane protection to most limestone, marble and other calcareous surfaces, Natural Stone Treatment will not alter the natural appearance of stone. It WILL reduce mold, mildew and atmospheric staining. And it's as good indoors as it is out. Alkali-resistant NST protects mortar and grout joints, too -- new and old alike. Service Life: 10 years+

Weather Seal Blok Guard & Graffiti Control
For concrete block, porous clay brick, precast concrete, porous stone, stucco

Rain and graffiti sink right in exterior concrete block and other porous masonry -- but NOT when Weather Seal Blok-Guard & Graffiti Control is on the job. It penetrates and fills pores, stopping the water penetration of normal weathering. Treated surfaces resist graffiti penetration -- graffiti practically slides off treated walls with application of Defacer Eraser Graffiti Wipe. Blok-Guard & Graffiti Control also makes it tough on efflorescence, mildew and other moisture-related stains. Application is easy with brush, roller or low-pressure spray. Service Life: 5-7 years

Weather Seal H40
For porous and deteriorating stone, brick and most natural stone

This deep-penetrating, consolidating water repellent not only keeps water out of masonry -- it also increases mechanical and compressive strength. H40 strengthens weathered surfaces and soft mortar joints. It's ideal for masonry already damaged by water, wear and weathering. H40 also helps masonry resist the attack of destructive mold, mildew and fungal growth. Great for high-humidity areas or anywhere biological staining makes its unwelcome appearance. Service Life: 10-12 years

Weather Seal SL100 Water Repellent
For precast, steel-reinforced and form-finished concrete, GFRC and most natural stone

Weather Seal SL100 offers maximum penetration and superior performance on dense and color-sensitive surfaces. You get invisible, solvent-free protection against water, salt, and other water-carried contaminants. SL100 is economical, with coverage rates 2 to 4 times that of conventional solvent-reduced water repellents. What it won't do is change masonry appearance, or stain nearby glass, metal or painted surfaces. Service Life: 10-15 years

Weather Seal SL40 water repellent
For precast, steel-reinforced and form-finished concrete, GFRC and most natural stone

SL40 penetrates masonry and chemically reacts with the substrate to provide a long-lasting, yet invisible water repellency. Easy to apply with conventional spray equipment, this unique formulation is specially designed for "evaporation suppression" of the active content. You get deep, even penetration. The masonry keeps its natural appearance, breathability and slip-resistance. Service Life: 10-15 years

Weather Seal SL20 water repellent
For precast, steel-reinforced and form-finished concrete, GFRC and most natural stone

Ready-to-use SL20 penetrates masonry and chemically reacts with substrates to lock in breathable protection against water invasion, salt attack, damage freeze/thaw cycles, acid-rain and more. Treated surfaces keep their natural color, texture and appearance. Service Life: 10-15 years

Sure Clean Custom Masonry Sealer
For architectural concrete block, cast stone, brick and many other surfaces

Custom Masonry Sealer weatherproofs architectural concrete, porous concrete block, cast stone, precast panels -- even wood surfaces! This long-lasting, breathable treatment interrupts the destructive "freeze/thaw" cycle by letting vapor out, without letting liquid water in. It also keeps out the dirt and corrosive salts that water often carries. Protection against many types of graffiti, and excellent UV stability are also part of the package. Service Life: 5-7 years

Consolideck Saltguard WB
For horizontal and vertical concrete and many other masonry surfaces

Salt, in air or water, spells bad news for your concrete investment. The chemical attack of salt molecules spalls concrete and corrodes rebar. That is, unless you've set up a "chlorine screen" salt barrier with Consolideck Saltguard WB. This water-based, VOC-compliant blend of silanes and siloxanes penetrates more deeply than conventional water-repellents. It chemically bonds deep within the substrate, making it the perfect answer to the corrosive salt air of coastal areas, and the destructive deicing salts of winter weather everywhere. Saltguard WB is ideal for field or in-plant application to most masonry surfaces, including parking decks, driveways, and brick, concrete, tile and most natural stone pavers. Service Life: 7-10 years

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