
Color-Lok™ (Semi-Transparent) Silane / Siloxane Stain
Long Lasting and Deep Penetrating
Protects Surfaces from Moisture Damage – with outstanding adhesion and resists chipping, cracking and peeling.
Available in a Variety of Semi-Transparent Colors
Great looking – Excellent hide, dead-flat sheen level for a better quality, smooth, even color finish.
Safe to use
Can be applied anywhere in North America because it contains low VOCs, no carcinogens, no odor.
Saves Money and Easy to apply
No primer or second coat required. Dries in 2 hours. Warranty up to 5 years.
Color-Lok™ (Semi-Transparent) Silane / Siloxane Stain
COLOR-LOK™ (SEMI-TRANSPARENT) is a professional quality, modified acrylic penetrating stain fortified with silicone for use on exterior and interior horizontal concrete, masonry and wood surfaces. Color-Lok™ Semi-Transparent is a cost efficient alternative to traditional exterior paints. Color-Lok™ is a color enhanced protective coating that maintains its beauty while saving on labor and materials during application and extends time before the next re-paint cycle.
Note to Specifier – CSI Reference Codes | |
09 90 00 | PAINTING AND COATING |
03 35 00 | COLORED CONCRETE FINISHES, EXPOSED AGGREGATE CONCRETE FINISHING, STAMPED CONCRETE FINISHING, CONCRETE TOPICAL TREATMENTS |
03 35 43 | POLISHED CONCRETE FINISHING |
04 2 00 | CLAY, CONCRETE, ADOBE PANELS, SINGLE / MULTIPLE WYTHE, ENGINEERED |
09 24/25 | Cement Plastering |


Best Tools for Application
Small Surfaces
A foam brush is recommended to soak in and saturate your substrate.
Medium Surfaces
Use a small hand pump sprayer.
Large Surfaces
Use an airless sprayer with a spray tip size between .035mm to .051mm.
Application Best Practices
1) Step One: Prepare the surface and confirm surface moisture is less than 25%. Remove dirt, grime, efflorescence, lime run, construction debris, form oils and release agents, chalked materials, loose and peeling paint, mold, mildew, etc. All cracks should be pointed or caulked.
2) Step Two: Perform a test application to confirm fit and finish.
3) Step Three: Apply the product according to It’s TDS.
4) Step Four: Let cure.
5) Step Five: Perform post application test to assure results are achieved.


Benefits of Concentrates and How to Mix
- Reduces carbon footprint
- Reduces job site and landfill waste
- Reduces worker and supply chain fatigue
- Refer to the description on the packaging for dilution ratios.
- Pour contents of concentrate into an empty container. The container size should be the size of the finished amount of product.
- Fill the container with clean water – we recommend distilled water for best results.
- Mix lightly with a stir stick.
Specification and Ordering Options
Substrate Uses and Anticipated Coverage Rates
Substrate porosity varies due to type of substrate and/or the age of the surface and its exposure to weathering. As a result, coverage rates may also vary. In addition, in certain applications, two coats may be required. Please contact us for coverage estimates. Best practices are to first perform a test application on the substrate, followed by a rilem tube test to ensure adequate coverage/absorption.
Refer to the product TDS for Surface Preparation and Application Methods.
Need help? Call 1-888-765-7070 Option 2.
Coverage Rates (Theoretical)
Substrate | Sq Ft / Gallon | # Of Coats |
Porous Surfaces | 125-175 | 1-2 |
Dense Surfaces | 150-200 | 1-2 |
Testing Data and Product Characteristics
Testing Data
Wind Driven Rain ASTM E-514 | 98.7% Leak Red |
Water Pen Fed Spec | SS-W-110C, 75% Min Req, 96.8 Leak Red Chloride Ion Int |
NCHRP No. 244 | No. 244 Series IV – 94% Red, No. 244 Series II – 82% Red |
Water Abs CMU ASTM C140-75 | 97.6% Effective |
Water Vapor Trans ASTM D-1653-71 | 100% Vapor Perm |
Water Repellency ASTM C67-87 | 97.6% Effective |
Weathering ASTM G-53 | 2,500 Hours – No Change |
Surface Burning ASTM E84 | Flame Spread 0, Smoke Development 0 |
Product Characteristics
Material Type | Water Based Acrylic |
Gloss Level | 20 – 25 @ 60° |
Color of Material | Clear to Slightly Cloudy |
Odor | Slight Latex Smell |
V.O.C. | <50 g/L V.O.C. Compliant in North America |
Flash Point | Non-Flammable |
pH Value | 7.5 |
Viscosity | 9.6 Seconds No. 4 Ford Cup |
Weight | Approximately 8.5 lbs./Gal. |
Surface Dry/Recoat/Usable | 2-4 Hours |
Volume Solids | 50% |
Approvals, Qualifications and Associations
Call 1-888-765-7070 Option 2 for additional assistance.
LAUSD – OESH | Approved |
LEED Points | Up to 3 Points |
LEED (New Construction) | Available |
LEED (New Schools/CHPS) | Available |
CARB | Compliant |
SCAQMD | Compliant |
All Other States and Canada | Compliant |
FDA | Meets Requirements |
USGBC | Member |
APTA | Member |
HPD | Various Products Approved |
American Institute of Architecture | Two Approved CE courses |