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REPEL 10 (Siloxane PD) Protective Sealer for Your Manufactured Stone Veneer

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There are a number of different sealers that you may use on your manufactured stone veneer products. One of the most common questions we receive is whether or not we have a sealer that will not change the appearance of the stone. Most sealers do either have a high gloss or matte finish that can change the appearance or color of the stone.


Repel 10 (Siloxane PD) from Kodiak Mountain Stone is a high quality sealant that will not change the appearance of your stone.


Repel 10 is a ready-to-use, water-based silane/siloxane water repellent for concrete and most masonry and stucco surfaces. Repel 10 will not impair the natural breathing characteristics of treated surfaces. it helps masonry resist cracking, spalling, staining and other damage related to water intrusion.


Safety Information

Always read full label and SDS for precautionary instructions before use. Use appropriate safety equipment and job site controls during application and handling.

24-Hour Emergency Information: 

INFOTRAC at 800-535-5053


Sealant-Waterproofing & Restoration Institute

Issued to: PROSOCO Inc.

Product: Sure Clean Weather Seal Siloxane PD (Repel 10)

ASTM D 6532: Water Absorption Reduction – Concrete 85.61%

ASTM C 67: Water Absorption Reduction – Brick 91.80%

ASTM C 140: Water Absorption Reduction – CMU 92.22%

ASTM D 6490: Water Vapor Transmission WVT (gains/h ft2) 1.22; Permeance 2.99

Validation Date: 4/3/13 – 4/2/18

No. 413-SPD418



  • Penetrates deeply for long-lasting protection on vertical or horizontal surfaces.
  • Service life is estimated at more than 10 years.
  • Treated surfaces “breathe” – does not trap moisture.
  • Water-based formula minimizes explosion and fire hazard compared to solvent-based water repellents.
  • Appropriate for use on manufactured stone surfaces.
  • Easy cleanup
  • Low odor for safer application to occupied buildings.
  • Alkaline stable – suitable for new “green” concrete, 14-28 days old.
  • Ready-to-use. No on-site dilution required.


  • Will not keep water out of cracks, defects or open joints.
  • Not recommended for below-grade applications.
  • Not suitable for applications to synthetic resin paints, gypsum, or other non masonry surfaces.



Cloudy white liquid,







8.29 lbs




4% ASTM D 5095


<30 g/L Low Solids Coating


>212° F (>100° C)

ASTM D 3278


32° F (0° C)


1 year in tightly sealed,

unopened container


Protect people, vehicles, property, plants, windows and all non masonry surfaces from product, splash, residue, fumes and wind drift. Protect and/or divert foot and auto traffic.

Thoroughly clean the surface using the appropriate Sure Klean® or Enviro Klean® product. Clean newly constructed and repointed surfaces before application. Siloxane PD won’t impair adhesion of most sealing and caulking compounds. Always test for compatibility.

Though Siloxane PD may be applied to slightly damp surfaces, best performance is achieved on clean, visibly dry and absorbent surfaces. Excessive moisture inhibits penetration, reducing the service life and performance of the treatment.

Window Glass Protection

Protect window glass before use. Sure Klean® Strippable Masking is effective protection for use with this product. If protecting windows is impractical, follow these steps:

1. Clean window glass thoroughly before application to nearby concrete or masonry.

2. Don’t use in wind or when air or surface temperatures are hotter than 95°F (35°C).

3. Try to keep Siloxane PD off the glass.

4. After treated surfaces have been protected from water for 6 hours, if product is on window glass, clean as soon as possible with soap and warm water. Alternatively use Enviro Klean® 2010 All Surface Cleaner to remove dried residues within 3–5 days.

Surface and Air Temperatures

Best surface and air temperatures are 40–95°F (4–35°C) during use and for 8 hours after. If freezing conditions exist before application, let masonry thaw. The water carrier may freeze at low temperatures or evaporate in high temperatures. Both conditions impair penetration and results. Cleanup is more diffcult from surfaces hotter than 95°F (35°C).


Recommended application is by high volume, low-pressure (<50 psi) spray. Fan spray tips are recommended to avoid atomization. Do not atomize/vaporize the material.

For small scale application, or when spray application is not appropriate, product may be applied using brush or roller. Contact Customer Care or your local PROSOCO representative for more information.

Storage and Handling

Keep from freezing. Store in a cool, dry place. Always seal container after dispensing. Do not alter or mix with other chemicals. Published shelf life assumes upright storage of factory-sealed containers in a dry place. Maintain temperature of 45–100°F (7–38°C). Do not double stack pallets. Dispose of unused product and container in accordance with local, state and federal regulations.


Read “Preparation” and the Safety Data Sheet before use.

ALWAYS TEST a small area of each surface to confrm suitability, coverage rates and desired results before starting overall application. Test with the same equipment, recommended surface preparation and application procedures planned for general application.

Dilution & Mixing

Apply as packaged. Do not dilute or alter.

Application Instructions

For best results, apply “wet-on-wet” to a visibly dry and absorbent surface.

Vertical Surfaces: Sprayer

Saturate from the bottom up, creating a 4–8 inch (15–20 cm) rundown below the spray contact point. Let the frst application penetrate for 5–10 minutes. Resaturate. Less will be needed for the second application.

Vertical Surfaces: Brush or Roller

Recommended for small scale application or when spray application is not appropriate. Contact PROSOCO for more information. Saturate uniformly. Let penetrate for 5–10 minutes. Brush out heavy runs and drips that don’t penetrate.

Horizontal Surfaces

Saturate in a single application. Use enough to keep the surface wet for 2–3 minutes before penetration. Broom out puddles until they soak in.

Dense Surfaces

Apply a single coat. Use enough to completely wet the surface without creating drips, puddles or rundown. Do not over apply. Test for application rate.

Drying Time

Treated surfaces dry to touch in 1 hour. Protect surfaces from rainfall for 6 hours following treatment. Protect from foot and vehicle traffc until visibly dry. Siloxane PD gains its water-repellency properties in 72 hours.


Clean tools, equipment, and over spray with soap and warm water.

Paint Adhesion

Always test to make sure paint sticks to treated surfaces. Improve adhesion before painting by pressure water-rinsing the treated surface, then letting it dry. Some cementitious coatings, plaster, stucco, etc. may not adhere well to treated surfaces. Install them first and let them thoroughly cure before application. Always test to verify compatibility between Siloxane PD and other proposed surface treatments.


Surface should be clean, dry and absorbent before application. Clean soiled surfaces with the appropriate Sure Klean® or Enviro Klean® cleaner before application. Call Customer Care toll-free at 800-255-4255 for recommendations.

Recommended application for PROSOCO protective treatments is high volume, low- pressure (<50 psi) spray equipment with a fan-type spray tip and adjustable pressure to avoid atomization of the material. For small scale application, or when spray application is not appropriate, brushes or roller may be used. Contact Customer Care or your local representative for more information on brush/ roller application. Protect treated surfaces from rain for 6 hours following treatment. ALWAYS TEST for best coverage rates and to confrm results before overall application. Test using the application instructions included herein. Let the test area dry thoroughly before inspection. Never go it alone. If you have problems or questions, contact your local PROSOCO distributor or feld representative. Or call PROSOCO technical Customer Care, toll-free at 800-255-4255.



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