Protectosil® 40 H is a clear, penetrating, breathable water repellent for use on all types of exterior above-grade concrete. This product penetrates the surface to chemically bond to the substrate, resulting in a permanent attachment of the water repellent molecule. Protectosil® 40 H is not a coating and as a result it will not leave a film or gloss on the surface. By reducing the amount of water entering the substrate, Protectosil® 40 H reduces the intrusion of waterborne contaminants such as salt and dirt. This reduces the deteriorating effects of these contaminants, such as rebar corrosion, spalling, scaling, efflorescence, leaching and staining.
Typical Applications
For use on concrete, to protect the reinforcing steel from corrosion due to the effects of water, deicing salts and other waterborne chemicals. For use on highways, airport runways and concrete pavement, to reduce scaling due to deicer chemicals. Reduces the expansion of alkali-silica reactivity. Reduces the effects of mildew, efflorescence and stains on vertical concrete surfaces. Imparts water repellency to a substrate for an extended time.
Benefits at a glance
Protectosil® 40 H is an alkyltrialkoxysilane in an alcohol carrier. The silane is designed to penetrate deep into the substrate and impart a high level of water and chloride ion screening. This provides the substrate with long-lasting protection. By incorporating Protectosil® 40 H 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:
• Excellent resistance to chloride ion ingress
• 100% Moisture vapor transmission
• Mitigation of AAR & ASR deterioration
• Deep penetration into substrate
• No change in surface appearance
• High resistance to alkali attack
• Long service life
• Excellent performance on wearing surfaces
• Keeps substrates cleaner
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
• High resistance to alkali attack
• Long service life
• Excellent performance on wearing surfaces
• Keeps substrates cleaner
Product Details
Technical Data Sheets
Further Information
Packaging:
Protectosil® 40 H 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, silanes.evonik.com/en, or by calling us at 1 (800) 828-0919.