CHEM TRETE 40 VOC – Silane-Based Deep Penetrating Water Repellent
CHEM TRETE 40 VOC is a clear, breathable silane water repellent developed by Protectosil® for long-lasting protection of concrete, brick masonry, and natural stone surfaces. Engineered for exterior above-grade applications, this non-film-forming solution penetrates deep into substrates, chemically bonding to internal capillaries and creating a permanent water-repellent barrier. Unlike surface coatings that alter appearance or deteriorate over time, CHEM TRETE 40 VOC remains invisible and vapor permeable, preserving the natural look and breathability of the structure.
This high-performance silane formulation is ideal for infrastructure exposed to moisture, deicing salts, and environmental contaminants. It significantly reduces the ingress of water and chlorides that lead to corrosion, scaling, staining, and premature material failure. Because it doesn’t form a surface film, it allows 100% vapor transmission and will not trap moisture within the material — a critical factor in long-term building health.
This Product is designed to meet strict environmental standards, complying with VOC regulations across the U.S. It does not contain masking agents or leave residues on nonporous surfaces, making it easy to apply without extensive site preparation. Structures treated with this solution — including bridges, parking decks, and masonry facades — benefit from extended service life and reduced maintenance costs. It also contributes to LEED credits when incorporated into sustainable designs.
Key Benefits of CHEM TRETE 40 VOC
- Deep substrate penetration for permanent water repellency
- 100% vapor permeability – breathable system
- High resistance to wind-driven rain and chlorides
- Reduces efflorescence, spalling, and leaching
- No surface film or change in appearance
- Long-lasting performance with minimal maintenance
- No masking of windows or metal required
- VOC compliant across the United States
Common Applications
- Above-grade concrete: parking decks, bridges, highways
- Brick and block masonry: exterior facades and walls
- Natural stone: walkways, monuments, vertical surfaces
- Airport runways, decks, and concrete exposed to freeze/thaw
Packaging
CHEM TRETE 40 VOC is available in 5-gallon pails and 55-gallon drums. Shipped F.O.B. throughout the United States and Canada.
| Property | Value |
|---|---|
| Product Type | Penetrating silane water repellent |
| VOC Compliance | U.S. VOC compliant |
| Application Areas | Concrete, brick, block, natural stone |
| Appearance | Clear, non-glossy, non-film forming |
| Moisture Vapor Transmission | 100% breathable |
| Carrier | Alcohol-based silane solution |
| Application Method | Low-pressure spray or roller |
For water-based alternatives, consider Protectosil AQUA-TRETE Concentrate. Learn more about the Protectosil line at Protectosil by Evonik.
