Protectosil® 300 S is a clear, penetrating, breathable VOC-compliant surface treatment for use on concrete which creates a deep hydrophobic layer to prevent water and waterborne contaminants from entering the substrate and causing premature deterioration. As an isobutylalkoxy functional silane, this product allows for faster dry times and superior performance on high quality mix designs typical of new bridge decks. By combining ultra-low surface tension with a tailored rate of reaction, Protectosil® 300 S is able to move through the moisture boundary layer that lines the pore structure of the substrate. This permits the development of uniform gradient permeation - a consistent level of protection throughout the entire depth of penetration - allowing for longer treatment life, especially on wearing surfaces.
Typical Applications
Benefits at a glance
The main benefits of the product are:
• Excellent resistance to chloride ion ingress
• 100% Moisture vapor transmission
• Mitigation of AAR & ASR deterioration
• Deep penetration into substrate
• No change in surface appearance
• No change in surface friction after application
• High resistance to alkali attack
• Long service life
• Excellent performance on wearing surfaces
• Dry time 1 hour at 70°F (21°C)
• Will not inhibit adhesion of paints and line striping