Siloxane PD


Long-lasting, pre-diluted water repellent

Sure Klean Weather Seal Siloxane PD (predilute) is a convenient, ready-to-use, water-based silane/siloxane water repellent suitable for concrete, as well as most masonry and stucco surfaces. Siloxane PD preserves the natural breathability of treated surfaces while providing protection against cracking, spalling, staining, and other water-related damage. With low odor and excellent alkaline stability, Siloxane PD is an optimal choice for both field and in-plant application scenarios.

Product Data Sheet

Safety Data Sheet


  • Deep Penetration for Long-Lasting Protection: Provides durable protection on both vertical and horizontal surfaces.
  • Extended Service Life: Estimated at more than 10 years.
  • Breathable Surfaces: Allows treated surfaces to "breathe," preventing moisture entrapment.
  • Water-Based Formula: Minimizes explosion and fire hazards compared to solvent-based water repellents.
  • Suitable for Manufactured Stone Surfaces: Appropriate for use on manufactured stone surfaces.
  • Shrinkage Crack Resistance: Resists water penetration when applied over existing shrinkage cracks of 0.02 inches or less.


  • Shelf Life: 1 year in tightly sealed, unopened container.
  • Formulation: Cloudy white liquid, odorless.
  • VOC Content: Less than 30 g/L Low solids coating.
  • pH: 4 - 5.
  • Coverage Rate: 300 - 1200 sq ft/gal. See Product Data Sheet for variations per substrate.
  • Freeze Point: 32° F (0° C).
  • Flash Point: Greater than 212° F (Greater than 100° C) ASTM D 3278.
  • Total Solids: 4% ASTM D 5095.
  • Weight per Gallon: 8.29 lbs.

Additional information

Weight N/A
Dimensions N/A

5 Gallon, 55 Gallon