Infrastructure is built to last - but only if it’s protected. Exposure to moisture, pollutants, and de-icing salts erodes the structural integrity of bridges and tunnels, buildings and monuments. Evonik empowers asset owners, engineers, and maintenance professionals with Protectosil® high-performance surface protection solutions.
With decades of experience, Evonik has developed advanced silane-based technologies that extend the life of concrete, masonry, and steel-reinforced structures. This helps reduce maintenance costs, and supports asset management over the service life of the structure.
Solutions by Application
Concrete & Infrastructure Maintenance
- Protectosil® anti-corrosion agents penetrate deep into concrete, forming a protective barrier that prevents chloride ingress and carbonation—two major causes of rebar corrosion. Protectosil® CIT is a corrosion inhibitor for steel-reinforced concrete based on organofunctional silanes; Protectosil® DRY CIT is a water-redispersible powder additive for cementitious building materials.
- Hydrophobic treatments with Protectosil® reduce water absorption, freeze-thaw damage, and efflorescence, preserving the appearance and performance of concrete surfaces.
- Ideal for bridges, parking decks, tunnels, facades, and marine structures.
Masonry & Building Envelope Protection
- Protectosil® water repellents safeguard brick, natural stone, and stucco from moisture, mold, and pollution.
- Transparent and breathable; these treatments maintain the aesthetic of historic and modern buildings alike.
- Used in restoration projects and new construction to ensure long-term durability and reduced cleaning cycles.
Product Characteristics
- Lower Lifecycle Costs: By extending service life and reducing repair frequency, Protectosil® supports maintenance planning over the life of the structure.
- Low-VOC Options: Protectosil® WS 610 is an organofunctional siloxane based waterborne emulsion with almost no volatile organic components. Waterborne emulsions are available across the Protectosil® WS range.
- Easy-to-Clean Surfaces: Protectosil® SC 30, SC 60 and SC CONCENTRATE provide easy-to-clean treatment for porous mineral building materials. Protectosil® ANTIGRAFFITI renders surfaces hydrophobic and oleophobic.
Why Choose Evonik’s Protectosil®?
- Proven Track Record: Trusted in iconic infrastructure projects worldwide.
- Deep Expertise: Backed by decades of silane chemistry innovation.
- Tailored Support: Our experts work with you to select the right solution for your specific maintenance challenge.
Ready to Extend the Life of Your Infrastructure?
Don’t wait for damage to dictate your maintenance strategy. Discover how Protectosil® can help you protect your assets, reduce costs, and plan maintenance intervals.
Contact our experts to discuss product selection for your substrate and exposure conditions.