A clear, penetrating, breathable water repellent for use on exterior above-grade concrete masonry units, brick masonry and most natural stones. Provides resistance against water, alkali attack, acid rain and waterborne staining. Penetrates into the substrate and chemically bonds with silica to form a permanent attachment of the water repellent molecule. Protectosil CHEM-TRETE PB 100 is especially suited for making porous substrates such as split-face block water repellent. This water repellent effect stands up against wind-driven rain.
By preventing water and waterborne contaminants from entering the substrate, Protectosil CHEM-TRETE PB 100 reduces problems such as efflorescence, leaching, acid rain deterioration, scaling, dirt buildup, staining, corrosion of reinforcing steel and mildew. Protectosil CHEM-TRETE PB 100 will not cause adverse surface appearance of the substrate. Treated surfaces are fully breathable because the natural moisture vapor transmission is not affected. This will eliminate problems caused by entrapped moisture, including blushing of the sealer and freeze-thaw damage to the masonry.
APPROPRIATE APPLICATIONSMaterials such as concrete masonry units (split-face, fluted or ground-faced blocks) can be protected from the ingress of wind-driven rain. Brick masonry, especially single wythe wall construction, can be treated to prevent moisture from entering and damaging interior walls. Keeps masonry cleaner by reducing the amount of dirt andother pollutants that may absorb into the concrete. Other substrates that can be protected include sandstone, terra-cotta, Saint Joe brick, hand-molded bricks and mostnatural stones.
ADVANTAGESProtectosil CHEM-TRETE PB 100 is a proprietary mixture of alkyltrialkoxysilanes. The Protectosil CHEM-TRETE PB 100 is designed to provide a high level of surface beading with penetration, to protect against wind-driven rain. The silane components are unique because they chemically bond to the silica in the substrate and set up a hydrophobic layer of protection. Because of the silane’s unique chemistry, a long service life is possible. By incorporating Protectosil CHEMTRETE PB 100 into your integrated design, you can earn vital Leadership in Energy & Environmental Design (LEED) credits for both new and existing construction projects.
- High resistance to wind-driven rain
- Excellent resistance to chloride ion ingress
- Reduced efflorescence
- Breathable system
- Deep penetration into substrate
- High resistance to alkali attack
- Long service life
- Substrates already treated with Protectosil CHEMTRETE
- PB 100 can be painted over
- bull Keeps substrates cleaner
LIMITATIONSN not intended for below-grade waterproofing. Will leave a residue on nonporous materials such as glass, metal and painted surfaces. Asphalt-based materials such as roofing materials or plastic products, shrubbery, and plant life should be protected from overspray. Should not be applied if the surface temperature is below 20°F (-7°C) or above 100°F (40°C), if rain is expected within 4 hours following application, or if high winds or other conditions prevent proper application. If rain has preceded theapplication, the surface should be allowed to dry for at least 24 hours.
