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      • Which Floor is Right for Me?
      • How to Buy a Green Floor: 7 Common Mistakes and How to Avoid Them
      • Why we Don't sell Luxury Vinyl Tile!
      • Marmoleum Buyer's Guide
      • The Difference Between Waterproof and Water Resistant Flooring
      • 44 Reasons Why We Don't Sell Synthetic Carpeting
      • Bamboo Flooring Buyer's Guide
      • Why Is Our Flooring Different?
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      • Green Building Supply
      • AFM Safecoat
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      • Paperstone
      • Chemlink
      • Caliwel
      • Pro-Lab
      • Radiosity
      • Franmar
      • Gulf Synthetics
      • View All Trusted Brands

      Learning Center

      • ECOS Non-Toxic, Zero VOC Paint
      • How to Test a New Product for Chemical Sensitivity
      • AFM Safecoat Sealers for Off-Gassing
      • How do I know if a product is really safe?
      • What Makes a Healthy Paint
      • Samples
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      • EcoStar
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      • View All Trusted Brands

      Learning Center

      • Air Purifiers: An Introduction
      • Using Marmoleum for Countertops and Wainscotings
      • All About Mold
      • Sustainable Solutions to Common Problems
      • Is solid wood T-1-11 safe for interior use?
      • Can a wood butcher block countertop be permanently sealed?
      • View All Learning Center
  • CLEANERS
    • Healthy Cleaners

      • Floor
      • Household
      • Mold & Mildew
      • Body Soaps
      • View All Healthy Cleaners

      Blissfully Clean

      • PerfectCLEAN Cloths
      • Extra Sponges
      • View All Blissfully Clean

      Trusted Brands

      • Green Building Supply
      • AFM Safecoat
      • Bioshield
      • Rubio Monocoat
      • Wools of New Zealand
      • Blissfully Clean
      • Forbo Marmoleum
      • Paperstone
      • Caliwel
      • Woodwise
      • Pro-Lab
      • Core Products HydrOxi Pro
      • Franmar
      • PerfectCLEAN
      •  
      •  
      • View All Trusted Brands

      Learning Center

      • What is the safest primer to use to get rid of tobacco smells in a home?
      • Sustainable Solutions to Common Problems
      • Blissfully Clean 100% Satisfaction Guarantee
      • Samples
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      • Cork Flooring
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      • Hardwood Flooring
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      • Adhesives & Underlayment
      • View All Sustainable Flooring

      Non-Toxic Paints & Coatings

      • Wood Stains & Sealers
      • Caulks, Sealants & Adhesives
      • Concrete & Masonry Sealers
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      • Bioshield
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      • Rubio Monocoat
      • Blissfully Clean
      • PerfectCLEAN Cloths
      • Forbo Marmoleum
      • Caliwel
      • Chemlink
      • Natural Light Energy Systems
      • Tesoro Woods
      • Unique Carpets, Ltd.
      • Earth Weave
      • Paperstone
      • Teragren
      • EcoStar
      • Core Products HydrOxi Pro
      • DriTac
      • Gulf Synthetics
      • J Mish
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      • Brava
      • Wicanders
      •  
      •  
      • View All Trusted Brands

      Top Articles

      • Why Is Our Flooring Different?
      • Why we don't sell luxury vinyl tile!
      • How to Buy a Green Floor: 7 Common Mistakes and How to Avoid Them
      • What Makes a Healthy Paint
      • AFM Safecoat Sealers for Off-Gassing
      • ECOS Non-Toxic, Zero VOC Paint
      • How do I know if a product is really safe?
      • How to Test a New Product for Chemical Sensitivity
      • All About Mold
      • Sustainable Solutions to Common Problems
      • Samples

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All Products > Non Toxic Paints & Coatings > Concrete & Masonry Sealers > 
Concrete & Masonry Sealers

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Click here to order 2oz color sample of ECOS Wall & Ceiling Paint in Eggshell sheen

We recommend a sample before you order!
We provide fast, free shipping on samples.
Refundable Samples
Order as many floor samples as you like and we'll ship all samples to you for free! You may then return them, within six months, and receive a refund for all returned samples. Please note: We do not reimburse for return shipping costs.
We recommend a sample before you order!
We provide fast, free shipping on samples.

Green Building Supply, Penetrating Gloss Sealer

Item #3551

 

Green Building Supply, Penetrating Gloss Sealer

Item #3551

 
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$59.60 – $3,278.00

Required FieldGBS Sealer Size   
Full Item Name   
Note   
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  • Details
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Permanent, penetrating, low-gloss sealer for concrete, masonry, stucco or brick

Cold Weather Alert:

This product may not perform properly if applied below the required temperature. Please check installation instructions on our website.

Because this is a water-based product, it may freeze during shipping. For that reason we will not ship over a weekend if temperatures dip below 32 degrees F. If you want us to ship anyway, it will be at your own risk. Please call to arrange with a GBS eco-advisor. 800.405.0222

GBS Penetrating Gloss Sealer is a waterborne polyester polymer and polyurethane with acrylic that works best on concrete, brick, stucco, and masonry. It waterproofs and preserves in 3-5 coats and comes with a 15-year waterproofing warranty.

Our Gloss Sealer penetrates two to four inches, filling molecular voids to completely solidify the surface. When it dries, it's actually part of the structure of the material. This means there's nowhere left for water to infiltrate and leak through. This also creates a stronger substrate that gives the surface a longer life.

Dry time for indoor surfaces is approx. five days; outdoors 2-4 days, depending upon temp and humidity. Allow 48 hours before walking on. Avoid using before rain.

Use it on basement walls and floors, retaining walls, pool surrounds, brick veneer walls, chimneys, fireplaces, concrete or limestone pavers, sidewalks, patios, warehouse floors and historical renovations. GBS Gloss Sealer should not be used in areas constantly under water. Not for garages or driveways due to hot tire pick-up.

GBS Penetrating Gloss Sealer has the same properties and benefits as GBS Penetrating Sealer which gives a matte finish. The difference is we've added acrylic to the formula that settles on the surface to provide a low-gloss sheen.

NOTE: GBS Penetrating Gloss Sealer will not work in conjunction with thinset. The sealer seals the pores of the concrete, thus not leaving anything for the thinset to bond to.

Any areas that have been power troweled, especially in basements, need to be acid etched before application. Please note this product will only perform well if applied correctly; be sure to read and follow the application instructions. For proper adhesion, the surface to be sealed must be:

  1. Porous
  2. Clean
  3. Free of any other sealers, coatings, or stamped concrete release agents
  4. Neutral pH — between seven and nine
  5. Dry

Please see the application instructions for details on each of the above steps.

This item description was written by Joel Hirshberg

Why We Like It

Whether you want to stop your basement walls or floors from leaking, or just want to prevent deterioration of your mortar in a brick wall, this is the right product for the job. It's a smart, inexpensive way to prevent problems before they arise.

Features & benefits

  • Permanent waterproofing — becomes part of your material; 15-year warranty
  • Superior durable finish — penetrates in; can't rub off; protects against freeze-thaw
  • Strengthens substrate — extends material life; reduces efflorescence and concrete dusting
  • Easy-to-use — sprays on; no mixing required; water cleanup
  • Non-toxic — no formaldehyde, ammonia, crystalline silica, ethylene glycol, mildewcides, fungicides, exempt solvents or aromatic hydrocarbons commonly used in sealers
  • Safe — for everyone, including the chemically sensitive; learn how to test a non-toxic product for tolerance
  • Eco-friendly — low VOC (54.5 g/l)

Alert: This product will only perform well if applied correctly. Be sure to read and follow the application instructions. Please note that it may slightly darken the color of your material. Be sure to test to see how it affects your specific application.

State Nexus Fee may apply
A state nexus fee will be applied to this item if drop shipped to the following states:  . We're sorry for the inconvenience. Click here to read more about the state nexus fee.

Specs

Dimensions
Coverage (1 Coat)
Coverage2
Recommended # of Coats3-5 coats until saturated. 3-5 coats will cover an average of 200 SF/gallon (depends on porosity)
Re-coat AfterApply next coat after previous coat has been absorbed. Wet on Wet. Do not let dry between coats.
Drying Time24-48 hours (outdoors), indoors 5 days (dependant on heat, humidity, airflow) and 1 month to fully cure inside the concrete.
Square Feet / Box Square Feet
Thickness or Height"
Thicknessmm
Veneer Cut Thickness
Length"
Lengthmm
Width"
Widthmm
Boxes / Pallet Boxes
Square Feet / Pallet Square Feet
Boards / Box Boards
Pieces / Box Pieces
Weight / Box Pounds
Basics
Interior or ExteriorInterior, Exterior
Use On MaterialBlock, Brick, Concrete: Unsealed, Flooring: Hardwood, Masonry, Masonry: Unsealed, Stone, Stucco, Surfaces: Porous, Tile: Unglazed
Use On
LocationBasements, Commercial Buildings, Decks & Patios, Entryways, Exterior Concrete / Stucco / Stone / Brick / Unglazed tile, Patios: Concrete / Masonry
Eco-replacement forSealers
Chemically-sensitive safeYes learn how to test a non-toxic product for tolerance
Test before useNo, test on inconspicuous area
Freeze/Thaw Safe?Yes
Warranty
Warranties
Residential Finish Wear
Residential Structural
Commercial Finish Wear
Commercial Structural
Certifications
Forest Stewardship Council (FSC) 
FSC Content
FSC Chain-of-Custody #
LEED® Qualifications 
LEED® Regional Materials Zip Code
Certifications 
Features
Minimum Order
Old Name
Material OriginUnited States
Country of ManufactureUnited States
Recycled Content
Shelf Life 
Use With These Products
Number of Colors Colors
Carpet Pattern
Coordinating Border
Critical Radiant Flux
Extractable Matter
Face or Pile Weight
Fiber
General Flammability
Surface Flammability
GSA Classification
Line
Machine Guage
Moth Resistance
Pattern Repeat
Pile Height (High)
Pile Height (Low)
Primary Backing
Resistance to Insect Pests
Roll Length '
Secondary Backing
Smoke Density
Static
Stitches Per Inch
Surface Texture, Construction, Style
Total Height
Total Weight
Traffic Rating
Tufts per Sq. In. Tufts / Sq In
Yarn Construction
Bundles per Pallet Bundles
Bundles per Square 6" Exposure Bundles
Bundles per Square 7" Exposure Bundles
Bundles per Square 7-1/2" Exposure Bundles
Bundles per Square 8" Exposure Bundles
Pounds per Bundle Pounds
Pounds per Pallet Pounds
Pounds per Roll Pounds
Pounds per Square Pounds
Pounds per Square 6" Exposure Pounds
Pounds per Square 7" Exposure Pounds
Pounds per Square 7-1/2" Exposure Pounds
Pounds per Square 8" Exposure Pounds
Lin Feet per Bundle Lin Feet
Lin Feet per Pallet Lin Feet
Rolls per Pallet Rolls
Squares per Roll Squares
Tiles per bundle Tiles
Tiles per Lin Foot Tiles
Finish TypeSealer
BaseWater-based
Ingredients 
VOC Content54.5 Grams/Liter
Application Methodbrush, roller, roller - 3/8" nap, spray, spray is best
Application Temperature RangeWarmer than 55°F
Application InstructionsSurface should be Clean, Dry, Neutral pH, Absorbant. Test BEFORE applying. Power-troweled surfaces may not absorb well and should be etched with Micro-Etch. Apply in good weather when air and surface temperature are above 45°F. and surface temperature is at least 5°F. above the Dew Point. For optimum application properties, materials should be between 70-90°F prior to application. 1. Use a low pressure sprayer (Hudson type) or any sprayer operated at no more than 20 psi. Spray on with a low-pressure sprayer and back roll using a 3/8 inch nap roller any puddles into a dry area with a low nap paint roller. The goal is to saturate the surface. This may require 3-5 passes, one after the other, WET ON WET application. Note: If the concrete was power troweled, GBS Penetrating Sealer may not absorb at all. Using our MicroEtch product will open the pores and allow for proper penetration. GBS Penetrating Gloss Sealer covers approximately 200 square feet per gallon depending upon porosity. 2. Ideally you will work with two people. One spraying and one using a 3/8 inch nap paint roller to spread out excess (do not allow excess puddles to dry as results could be slippery). Clean the roller or brush with soap and water. 3. Allow to dry thoroughly before traffic is allowed onto the floor; indoors approx 5 days, outdoors 24-48 hours depending upon temp, humidity, and air flow; avoid using before rain. 4. Do not use on driveways or garages due to hot tire pick-up. Warm tires will bond to the acrylic and peel it off the surface of the floor. Use GBS Penetrating Sealer instead. Not recommended for submerged areas in pools or ponds. Do not use outdoors before it rains (within 24 hours). The normal cure time is 48 hours or longer depending upon humidity and temperature. 5. NOT recommended for use prior to painting. Use the regular GBS Penetrating Sealer if you wish to paint over. Note1: GBS Penetrating Gloss Sealer will not harm glass, aluminum, metal, plants, or aquatic life. If GBS Penetrating Gloss Sealer gets on glass, rinse off so it doesn't dry. Note2: GBS Penetrating Gloss Sealer will make the surface smoother and easier to clean but it can become slippery if wet.
Surface or Product PreparationAlways test GBS Penetrating Sealer in a small inconspicuous location first. When in doubt, call us at 800-405-0222. FOUR Surface Requirements BEFORE Applying: 1) Porous 2) Clean 3) Dry 4) Neutral pH I - POROUS Porous means it should be able to soak in easily. If there are sealers, paint or adhesives on the surface they will disallow absorption. If the surface has been power-troweled it will also make the surface so dense that water will not soak in easily. How to Test? Place a few drops of water onto the surface and see if it beads up or soaks in. If it soaks in and darkens, then the surface is porous and GBS Penetrating Sealer will also soak in. Nothing need be done except to make sure it is clean, dry and have a neutral pH. See #2 and #3 below. If, however it beads up and does not soak in for about an hour, then there is either something on the surface or it has been power-troweled. If power troweled, use our GBS MicroEtch product to open the pores without toxic chemicals. Do NOT acid etch. Or you can grind with a surface grinder that can be rented from most rental stores. If there is latex paint, adhesives, or other acrylic sealers on the surface we recommend our GBS Industrial Strength Cleaner (If it is unknown what type of sealer was used, we recommend purchasing a test sample of the cleaner as some sealers cannot be chemically removed). If efflorescence (white powder), rust stains, red clay stains appear on the surface, use a non-toxic acidic cleaner (Outdoor use only). II - CLEAN Clean means washed with a neutral pH detergent and then dried thoroughly. Ideally use a 3000 psi pressure washer. If you are indoors, this may be difficult so use a damp mop instead. If you have used a cleaner mentioned above or any other strong cleaner you should wash at least twice and rinse at least three times. Then dry well for several days. III - DRY After cleaning, use fans, heat, open windows or a shop vac to remove all water. If there is any water inside the concrete, it will prevent the sealer from soaking in. If it's humid, cold or damp, this could take longer to dry out. Be patient. Even if it appears dry on the surface, moisture may still be inside the concrete. Use a moisture meter to test or wait at least two days during warm weather or three days during cool weather. NOTE: New concrete, even though appearing dry, is still very wet inside. Therefore, you should wait a minimum of 3-4 weeks until it has dried inside. This can be accelerated with heat, fans and good ventilation. IV - NEUTRAL pH New concrete has a high pH. For GBS Penetrating Sealer to work properly, the concrete needs to be in the pH 7-9 range to work well. No higher, no lower. We provide litmus paper so you can test in several areas. Be sure to use distilled water with the litmus test. What to do if the pH is still high after testing? Concrete less than one year old is often still high in pH. If so, you can use our GBS pH Reducer. This will bring the pH down to acceptable levels with a few hours. Then it should be washed off as explained in #2 above. Note: If you need to open the pores due to power troweled surface then our GBS Micro Etch product is sufficient. You don't need both products. - OTHER LIMITATIONS - Apply in good weather when air and surface temperature are above 45°F. and surface temperature is at least 5°F. above the Dew Point. For optimum application properties, materials should be between 70-90°F prior to application. Maintain unused material in closed containers in protected storage at 40-90°F out of direct sunlight. GBS Penetrating Gloss Sealer is not intended to be used submerged in water for an extended period of time. GBS Penetrating Gloss Sealer will not work in conjunction with thinset. The sealer seals the pores of the concrete, thus not leaving anything for the thinset to bond to. GBS Penetrating Gloss Sealer will not work for garages or driveways due to hot tire pick-up. If the surface does NOT absorb water, then there is possibly another sealer applied to the surface and GBS Penetrating Sealer should not be applied.
Appearance When Dryclear gloss
Cleans Up Withneutral cleaners
StorageStore in cool dry place out of sunlight
Recycling or DisposalDispose of excess product in accordance with all local state and federal regulations, Do not throw out container unless completely empty. Pour contents onto dry cardboard and let thoroughly dry outdoors. May also be absorbed with cat litter sand or other dry materials
Adhesive
Bamboo Construction 
Bathroom Installation
Color Change
Construction 
Construction Description
Durability 
Edge 
Finish
Finish Sheen 
Finish Contains Aluminum Oxide?
Floor Item Type
Floor Pattern
Floor Type 
Grade Installation 
Grading 
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Janka Hardness Rating
Joint System
Knots 
Material 
Number of Plys  -Plys
Composition
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Style 
Shade (1 Light) - (7 Dark) 
Strips / Plank  -Strips/Plank
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Touch Up Kit
Can be indoor?
Can be outdoor?
Direct Vent?
Easy-Linkable?
Energy Factor
Max Gallons Per Minute - GPM
Max BTU's / Hour - BTU's / Hour
Multi Control Capabilities
Temperature Range (with remote)
Life Hrs
Input Wattage W
Delivered Lumens lm
Efficacy lm/W
Color Temperature K
Color Rendering Index (CRI)
Equivalent Wattage W
Energy Savings
Additional Information

  • State: Liquid
  • Vapor Pressure: (Air + 1) - N/A
  • Solubility in Water: Dilutable
  • Boiling Point: 100 degrees Celsius / 212 degrees Fahrenheit
  • Freezing Point: 0 degrees Celsius / 32 degrees Fahrenheit Water
  • Specific Gravity: (Water=1) - 1.10 @ 20 degrees Celsius
  • Evaporation Rate: (BAC=1) - Same as Water
  • Percent Solids by Weight: 19%
  • pH: 6.8
  • Volatile Organic Compounds: 52.79 G/L

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