Penetrating Sealer & Dust Proofing Concrete

Stop concrete dust in its tracks and seal your concrete with our powerful combination of a densifier and Silane / Siloxane water repellant and sealer. Perfect for basements, garages and exterior surfaces where protection is required without the aesthetic value (and work) of a concrete coating such as an epoxy, stain or similar product.

Penetrating Sealer Coverage

This product is provided in concentrate. The full concentrate has 40% active ingredients. For better protection, we suggest diluting 5:1 (each gallon makes 6 gallons). You will get coverage of approximately 80 Sq.Ft. per gallon of diluted material. We suggest two coats.

Densifier Coverage

TL37 Densifier can vary greatly. Over smooth concrete coverage is about 250 Sq. Ft. per gallon. Do not dilute TL37. TL37 is the first step in this process. While it is not required it is highly recommended.

Basic Application Guidelines

Apply TL37 Densifier using pump style garden sprayer. Apply at a rate of approximately 250 sq.ft. per gallon over smooth concrete. Use a microfiber mop over the area after applying. The area should be saturated but puddles should not form. Allow the TL37 densifier to dry for 24 hours. Dilute the TL021 Penetrating Sealer 5:1. This should net 6 gallons. Apply at a rate of 80 sq.ft. per gallon, per coat and DO NOT allow the product to dry in between coats. You will need to install two coats. The area should be saturated but puddles should not form.

Related Products


Concrete Densifiers

Concrete densifiers penetrate the concrete and chemically and permanently strengthen your concrete.

Acrylic Sealers

Acrylic sealers provide a gloss coat over bare concrete and acid stains, protecting the concrete below.

Oil Stain Removers

Pour N Restore removes oil stains without scrubbing. Simple and easy. No mess. Pour it out and it dries to a powder.

Garage Floor Coatings

We offer a full line of garage floor coatings and epoxy products. Starting at about .80¢ / Sq. Ft.

concrete densifier

Pricing & Options

Dust Proofing & Penetrating Sealers Free Shipping & No Minimum

Dust Proofing & Penetrating Sealers Free Shipping & No Minimum Protect concrete in basements, garages and driveways from stains while dustproofing concrete


TL021 Penetrating Sealer (40% Active Ingredients) Dilute 5:1 Makes 6 Gallons

SKU: TL021-1

Price Each:

$ 149.99

TL021 5 Gallon Penetrating Sealer (40% Active Ingredients) Dilute 5:1 Makes 25 Gallons

SKU: TL021-5

Price Each:

$ 584.00

TL37 Concrete Densifier 1 Gallon VOC FREE


Price Each:

$ 59.99

TL37 Concrete Densifier 5 Gallon VOC FREE

SKU: TL37-5

Price Each:

$ 129.99
Check our our new Garage Floor Designer


SILANE/SILOXANE PENETRATING SEALER (AVAILABLE IN 20% OR 40% STRENGTHS)   PRODUCT DESCRIPTION:   TL021 is a one component water based multifunctional self-crosslinking water soluable alkylalkoxy silane and siloxane designed to treat a wide variety of mineral substrates including architectural concrete, concrete block, splitface block, pavers, stucco, porous and dense brick, clay tile, exposed aggregate concrete, sandstone, and slate.   BENEFITS OF USE: *Provides excellent water repellency to reduce cracking, spalling, freeze-thaw damage, chemical degredation, biological growth, efflorescence, and dirt pickup, thereby lengthening substrate life and reducing maintenance costs. *Provides excellent beading for improved aesthetics *Low VOC emissions on curing. EPA compliant. *Formulated to minimize darkening effects thus not changing substrates appearance (20% strength or less.) *Good performance on both neutral and highly alkaline surfaces providing application field flexibility. *Physically and chemically bonds to substrate *Product is UV stable and will not discolor *Product is resistant to biological degredation for longer service life. *Coatings are vapor permeable to resist cracking, peeling, blistering and allows for carbonation to continue after the coatings application. This allows for lengthened substrate life and for greater substrate structural strength over time. VOLATILE ORGANIC CONTENT: Less than 280g/l, at 40% and 140g/l at 20% strength. COLOR: White opaque emulsion COVERAGE PER GALLON: When the surface is fully saturated, coverage will depend on the absorptivity of the substrate resulting in 100 to 400 square feet per gallon coverage. PACKAGING INFORMATION: This product is available in 1 gallon, 5 gallon and 55 gallon containers.     SHELF LIFE: Six months in unopened containers when stored between 50-80 degrees F. FINISH CHARACTERISTICS: This product does not change the overall appearance of the substrate. After the material is applied and allowed to dry for 24 hours, it will not be readily apparent that the application has occurred, except the surface will exhibit excellent water repellency. ABRASION RESISTANCE: The application of this product will increase the abrasion resistance of most substrates. Results will vary according to substrate type. ADHESION: Because this material becomes an integral part of the surface that is coated and does not form an impermeable barrier, delaminations do no occur. DOT CLASSIFICATION: “Not regulated” VISCOSITY: Less than 25 cps CURE SCHEDULE: (70°) Allow the material to dry for a 24 hour period of time to obtain the maximum benefits of the application   APPLICATION TEMPERATURE: 45-95 degrees F.   PERFORMANCE OF TL021 (both 20% & 40%) WATER REPELLENCY                                       passes ASTM E514 WATER REPELLENCY                                       NCHRP 244 (86.75) WATER REPELLENCY (after 1 month)               NCHRP 244 (81.88) WATER REPELLENCY (after 5 freeze-thaws)     NCHRP 244 (85.0) UNALTERED APPEARANCE (Delta E/5% soln.)                   1.08/1 REDUCTION OF Cl-ion % effectiveness)                                  >80.0 SCALING                                         ASTM C672 (highest rating of 0)   COVERAGE RATES & DILUTION: Coverage rates         dilution ratio recommendation Substrate                                                                 (based on 40%) Sq. ft./gallon                    %             ratio Architectural concrete              80                            6.6           5:1 Concrete block                        80                            6.6           5:1 Splitface block                         125                          10.0         3:1 Concrete pavers                       40                            3.3           10:1 Stucco                                     125                          10.0         3:1 Porous brick                            150                          10.0         3:1 Dense brick                             350                          20.0         1:1 Clay tile                                   75                            6.6           5:1 Exposed aggregate concrete    325                          20.0         1:1 Sandstone                                125                          10.0         3:1 Slate                                         450                          40.0         0:1   PRIMER/TOPCOAT: 2 coats recommended     LIMITATIONS: *See application procedures on the reverse side for more details. Always apply a test patch before using. *Physical properties listed on this technical data sheet are typical values and not specifications. *Highly concentrated solutions may remain slightly tacky, when dry. Always test at your dilution over the substrate to be applied to determine suitability before using. *See reverse side for limitations of our liability.         INSTRUCTIONS (TL021)   1) PRODUCT STORAGE: Store product in an area so as to bring the material to normal room temperature before using. Continuous storage should be between 50 and 80 degree F. Keep from freezing.   2) SURFACE PREPARATION: All dirt, oil, dust, foreign contaminants and sealers must be removed to assure a trouble free application. This product will work on a wide variety of substrates but a test patch should be placed prior to undertaking the application. The surface to be treated should be dry and should remain dry for a twenty four hour period after the application. Prepare surface by: abrasive blasting, acid etching, solvent degreasing, caustic soda scrubbing, or high pressure washing. If strong acidic or alkaline cleaning agents are used, neutralize the surface and remove all residue before application. Always apply a test patch to insure product suitability.   3) PRODUCT APPLICATION: Stir material before using. Apply material without thinning when at a 20% concentration or dilute with water when using the 40% concentration according to the required concentration level necessary. Apply material with a brush, roller, or spraying equipment. Apply the treatment to the surface until it is saturated without puddles. Typical application rates will be about 125 square feet per gallon. Apply two coats using a wet-on-wet procedure to ensure complete coverage. Maximum water repellency is achieved in 72 hours depending on environmental conditions. Beading generally improves over time. Do not use for below grade applications or where water pressure is from interior walls. Do not apply to plastic or foam substrates. Penetrating sealer will not prevent water passage through unsound or cracked surfaces. Protect surrounding areas from overspray or splatter.   4) RECOAT OR TOPCOATING: Two coats are recommended. Substrates that are coated with concentrations at 10% or less are generally recoatable and will actually improve the adhesion on mineral substrates.   5) CLEANUP: Use any suitable detergent and water.   6) FLOOR CLEANING: Caution! Although very unlikely, some cleaners may affect the color of the treated surface. Test each cleaner in a small area, utilizing your cleaning technique. If no ill effects are noted, you can continue to clean with the product and process tested.   7) RESTRICTIONS: Restrict the use of the substrate to light traffic and non-harsh chemicals including water until 24 hours has passed. Keep the area dry for this period (excluding the application of the product.). Dependent on actual complete system application, surface may be slippery, especially when wet or contaminated; keep surface clean and dry.   NOTICE TO BUYER: DISCLAIMER OF WARRANTIES AND


We warrant that our products are manufactured to strict quality assurance specifications and that the information supplied by us is accurate to the best of our knowledge. Such information supplied about our products is not a representation or a warranty. It is supplied on the condition that you shall make your own tests to determine the suitability of our product for your particular purpose. Any use or application other than recommended herein is the sole responsibility of the user. Listed physical properties are typical and should not be construed as specifications. NO WARRANTY IS MADE, EXPRESSED OR IMPLIED, REGARDING SUCH OTHER INFORMATION, THE DATA ON WHICH IT IS BASED, OR THE RESULTS YOU WILL OBTAIN FROM ITS USE. N0 WARRANTY IS MADE, EXPRESSED OR IMPLIED, THAT OUR PRODUCT SHALL BE MERCHANTABLE OR THAT OUR PRODUCT SHALL BE FIT FOR ANY PARTICULAR PURPOSE. NO WARRANTY IS MADE THAT THE USE OF SUCH INFORMATION OR OUR PRODUCT WILL NOT INFRINGE UPON ANY PATENT. We shall have no liability for incidental or consequential damages, direct or indirect. Our liability is limited to the net selling price of our product or the replacement of our product, at our option. Acceptance of delivery of our product means that you have accepted the terms of this warranty whether or not purchase orders or other documents state terms that vary from this warranty. No representative is authorized to make any representation or warranty or assume any other liability on our behalf with any sale of our products. Our products contain chemicals that may CAUSE SERIOUS PHYSICAL INJURY. BEFORE USING, READ THE MATERIAL SAFETY DATA SHEET AND FOLLOW ALL PRECAUTIONS TO PREVENT BODILY HARM.
TL021 Penetrating Sealer with 40% Silane & Siloxane is a water-based sealer that penetrates deep into concrete increasing water repellency and abrasion resistance. It also protects concrete from chemical damage and biological growth while increasing the strength and lifespan of the concrete or other approved substrate.
It also provides exceptional protection from freze-thaw. When combined with our TL37 densifier it is the ultimate solution to for dust proofing your concrete, strengthening it and protecting it from the elements.
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