303-S Siloxseal Siloxane Water Repellent

303S is formulated to protect masonry, concrete, stucco and sandstone against moisture intrusion that causes efflorescence, leaching, mildew, atmospheric staining and freeze/thaw spalling.

• Excellent resistance to the detrimental effects of acid rain and carbon buildups
• Ideal for applications to concrete flat work, parking ramps, stadiums and vertical concrete surfaces
• Reduces the migration of chloride ions through cement thus reducing the corrosion and deterioration of rebars in reinforced concrete
• Can be applied to vertical and horizontal surfaces.

Available in 7%, 10% and 15% siloxane solids.

FOR MASONRY/SURFACE TYPES:
Formulated for low-pressure spray application to Masonry, Concrete, Ctucco, Sandstone, etc.

NOTES:

• May NOT be suitable for application to some types of natural stone, limestone and marble.
• May NOT be suitable for surfaces to receive surface paints or coatings
• Always test for compatibility, apply above 20°F.

SIZES: 1, 5 & 55 Gallons

Siloxseal Siloxane Water Repellent Application

• Using low-pressure spray, apply a flood coat with 6” to 8” of run-down, working bottom to top.
• Requires two wet on wet applications on porous surfaces.
• On very dense mirror or polished surfaces a single application is sufficient.
• For detailed instructions, download the Technical Data Sheet for this product.
• Suggested Dilution Rates for 303-S Siloxseal Siloxane Water Repellent

Product Should Not Be Diluted

• Coverage Rates for 303-S Siloxseal Siloxane Water Repellent

Project Materials/Conditions	Coverage
Clay Brick	100-150 sq. ft. per gal.
Cement Brick	80-120 sq. ft. per gal.
Concrete Block	60-80 sq. ft. per gal.
Smooth Concrete (precast)	100-150 sq. ft. per gal.
Smooth Concrete (steel troweled)	150-200 sq. ft. per gal.
Stucco	125-175 sq. ft. per gal.
Exposed Aggregate	100-150 sq. ft. per gal.
Natural Stone (Rock Face)	100-150 sq. ft. per gal.
Natural Stone (Smooth Cut)	125-175 sq. ft. per gal.