Protectosil AQUA-TRETE Concentrate

A clear, penetrating, breathable water repellent for use on brick, concrete masonry units, and some natural stones.

AQUA TRETE CONCENTRATE Water-Based Silane Protection

Protectosil® AQUA-TRETE CONCENTRATE is a high-performance, breathable water repellent engineered for use on brick masonry, concrete units, and select natural stones. This alkyltrialkoxysilane formulation is water-soluble, delivering superior performance without the use of alcohol-based solvents. Its ability to chemically bond with substrates makes it highly durable, offering long-lasting protection against water ingress and contaminants without changing the appearance of the treated surface.

Benefits of AQUA TRETE CONCENTRATE

  • Excellent resistance to chloride ion penetration
  • High resistance to wind-driven rain
  • Reduces efflorescence and acid rain deterioration
  • Breathable system that maintains moisture vapor transmission
  • Penetrates deeply into porous substrates
  • Helps prevent corrosion of reinforcing steel
  • Keeps surfaces cleaner and structurally sound

Common Applications

This product is ideal for protecting brick masonry, concrete masonry units (CMU), split-face or fluted block, and hand-molded brick. It is designed to prevent moisture penetration, freeze-thaw damage, and ingress of wind-driven rain. Suitable applications include commercial facades, retaining walls, hardscape surfaces, and vertical concrete in need of long-term water repellency. Compatible substrates also include terra-cotta and select stone surfaces.

Packaging & Shelf Life

Protectosil® AQUA-TRETE® CONCENTRATE is packaged in 1-gallon containers (4-pack case). Shelf life is 12 months in unopened containers. Store between 3 °C and 40 °C. Do not allow the product to freeze.

Product Properties

Property Value
Technology Water-based alkyltrialkoxysilane
Appearance Clear liquid
Application Method Brush, roller, or low-pressure sprayer
Surface Finish No visible change
Packaging 1-gallon containers (4-pack case)

Looking for a solvent-based alternative? Check out CHEM TRETE 40 VOC.

For more surface protection options, visit Protectosil by Evonik.

Technical Documents