H&C^® SX-7 Siloxane & SL-40 Silane Water Repellants

SL-40
• Excellent moisture inhibitor
• Will not change the traction of skid resistance of horizontal surfaces
• No color change of substrate
• Dries quickly allowing substrate to be reopened to foot traffic within one hour
• Meets N.C.H.R.P. report 244 certification
• No masking or cleaning of windows
• Prevents attack of deicing salts and chloride ions
• Small Silane molecules for deeper penetration of sealer
• Prevents efflorescence leaching

SX-7
• Zero VOC, will meets all known restrictions
• Water-based formulation allows for safe application
• Ready-to-use. No on-site dilution of product
• Penetrates deeply for long-lasting protection on vertical or horizontal surfaces
• Substrate will breath after sealer is applied
• Soap and water cleanup
• Low odor for safe application to occupied buildings
• Alkaline resistant

H&C^® SX-7 is a zero VOC proprietary 7% Siloxane water repellant that does not require dilution and helps concrete and masonry surfaces resist cracking, spalling, staining and other damage related to water intrusion.

H&C^® SL-40 Silane Water Repellant is a proprietary 40% Silane that penetrates into concrete or masonary and provides long term weatherproofing protection.

Recommended Uses:

• Cast-in-place and precast concrete.
• Exposed aggregate.
• Brick and Mortar.
• Stucco and sandstone.
• Architectural Concrete Block.

Important Things to Keep in Mind

Weather Conditions

• Surface should be completely dry. Allow at least 24 hours with sunshine for drying, if surface was wet.
• Do not apply below 40ºF (4ºC) or above 95ºF (35ºC). If freezing conditions exist before application, let masonry thaw. The water carrier may freeze at low temperatures or evaporate in hot conditions. Both conditions impair penetration and results. Do not apply if rain is expected within 3 hours. Do not apply during windy conditions. Do not dilute or alter these products.

• Clean sprayer and tools with Isopropyl or denatured alcohol.

Application Methods

• Apply a single application with low-pressure spray equipment (15psi), roller or broom.
• On vertical surfaces apply the material from the bottom of the wall upwards spraying so that it will run down the surface at least six inches below the spray pattern.
• On horizontial surfaces, sufficiently apply to completely cover flood the surface (approximately 125 FT2/gal). Typically, the surface can be reopened to traffic in one hour if the temperature is at 72ºF (22ºC) or above.

Drying Time

To Touch:	1 hour
Recoat:	Minimum 4 hours
Light traffic:	2 hours
Heavy traffic:	72 hours

SX-7 Spec and Data Sheet   SL-40 Spec and Data Sheet   MSDS