Protectosil® CHEM TRETE PB VOC

Protectosil® CHEM-TRETE® PB VOC is a clear, penetrating, breathable water repellent for use on concrete, brick, concrete masonry units and some natural stones. It is especially suited for making porous substrates, such as split-face block, water repellent in order to stand up against wind-driven rain. By penetrating into the substrate and chemically bonding with silica to form a permanent attachment of the water repellent molecule, Protectosil® CHEM-TRETE® PB VOC prevents water and waterborne contaminants from entering the substrate and causing premature deterioration. It also reduces problems such as efflorescence, leaching, acid rain deterioration, scaling, dirt buildup, staining, the corrosion of reinforcing steel and mildew.
Protectosil® CHEM-TRETE® PB VOC 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.

Typical Applications

Materials 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. Protectosil® CHEM-TRETE® PB VOC provides resistance against water and waterborne contaminants to reduce staining. Other substrates that can be protected include sandstone, terra-cotta, hand-molded bricks and natural stones.

Benefits at a glance

Protectosil® CHEM-TRETE® PB VOC is a proprietary mixture of alkyltrialkoxysilanes in a special carrier system. It 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 VOC into your integrated design, you can earn vital Leadership in Energy & Environmental Design (LEED) credits for both new and existing construction projects.
The main benefits of the product are:
• High resistance to wind-driven rain
• Excellent resistance to chloride ion ingress
• Reduced efflorescence
• Breathable system
• Deep penetration into substrate
• No change in surface appearance
• High resistance to alkali attack
• Long service life
• Substrates already treated with Protectosil® CHEM-TRETE® PB VOC can be painted over
• Keeps substrates cleaner

Product Details

Further Information

Packaging:

Protectosil® CHEM-TRETE® PB VOC is available in 5-gallon pails and 55-gallon drums. Shipped F.O.B. throughout the United States and Canada. Contact your local Protectosil® representative or your regional manager for specific cost information. You can obtain their contact information on our website, https://silanes.evonik.com/en, or by calling us at 1 (800) 828-0919.

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