SKU: 41990923650
can i use a garden sprayer to apply concrete sealer

can i use a garden sprayer to apply concrete sealer Green Building Supply, Penetrating Concrete Sealer

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Description

can i use a garden sprayer to apply concrete sealer Green Building Supply, Penetrating Concrete SealerSafe, permanent waterproofing 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

Safe, permanent waterproofing 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. 888.727.2101

GBS Penetrating Sealer is a waterborne polyester polymer and polyurethane that works best on concrete, brick, stucco and masonry. It waterproofs and preserves with 3-5 coats, plus it comes with a 15-year waterproofing warranty. Unlike topical sealers that sit on the surface and rub off with wear and tear, GBS Penetrating Sealer protects from inside the material where it can't wear away. In other words, this sealer actually becomes part of the substrate.

This sealer penetrates two to four inches deep, filling molecular voids to completely solidify the entire structure. When it dries, it becomes part of the structure creating a solid matrix. This means there's no room left for water to infiltrate and leak through. In addition, the substrate becomes stronger and lasts longer.

Dry time for indoors is apx. five days; outdoors 2-4 days depending upon temp and humidity. Allow 48 hours before walking on. Avoid using it before rain.

GBS Penetrating Sealer is solvent-free, odorless, non-flammable, non-caustic, and almost no VOC (5.9 g/l). Use it on basement walls and floors, retaining walls, pool surrounds, brick veneer walls, chimneys, fireplaces, concrete or limestone pavers, driveways, sidewalks, patios, warehouse floors, and historical renovations.

Quality Control Test results: GBS Penetrating Concrete Sealer has passed 9 independently performed quality tests per the HRP specifications. These tests include:

  • ASTM 413 - “Water Absorption of Chemical Resistant Concrete/Masonry”
  • ASTM C140 - “Masonry Absorption Test for Light Weight Block”. ASTM requires that water absorption cannot exceed 1% after 2 days of immersion.
  • ASTM 123D - “Penetration Test for Nuclear Power Plant, 8000 psi Concrete Pour”
  • Blue Dye Test - “Blue Dye Absorption Test”
  • ASTM 642-82 - “Masonry Absorption Test for Brick”
  • ASTM C672 - “Scaling Resistance”
  • AS 1012.21-1999 - "Water Absorption of Hardened Concrete"
  • NCHRP 244 – Cube Test – “Accelerated Weathering Test”
  • NCHRP 244 – Southern Exposure – “Chloride Ion Penetration Test”
  • NOTE 1: GBS Penetrating Sealer should NOT be used in areas constantly under water such as cisterns. Also, any areas that have been power troweled, especially in basements, need to be acid etched or mechanically ground before application in order to open the pores. This product should not be used on stamped concrete.

    NOTE 2: Do not use this product in working fireplaces as it is not suited to that kind of heat (may bubble and melt).

    NOTE 3: If you plan on applying ceramic or porcelain tile to the surface at some point in the future, do not use this product. It will seal the concrete so well that the thinset will not adhere to the surface—unless, of course, it is etched or ground.

    NOTE 4: This product will only perform well if applied correctly. Be sure to read and follow the application instructions.For proper adhesion, the surface must be:

    1. Porous
    2. Clean
    3. Free of any other sealers, coatings, 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.

    NOTE 5: You can paint over this product with a 100% acrylic concrete floor paint. We recommend AFM SafeCoat Concrete Floor Paint.

    A similar product, GBS Penetrating Gloss Sealer, provides a low-gloss finish.

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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 way to prevent problems before they arise. An inexpensive insurance policy.

Features & benefits

  • Permanent waterproofing — becomes part of your material; 15-year warranty against water intrusion
  • 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; pH strips provided
  • 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 — almost no VOC (5.9 g/l)

ALERT: This product will only perform well if applied correctly. Be sure to read and follow the application instructions. Test first to see how it affects your specific application.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41990923650

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4.3 ★★★★★
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D. Pryce
Charlottesville, US
★★★★★ 4
Burns
Maybe once you get your eczema under control with some other product, you can use this for maintenance, but it's an absolute misery if you have a bad outbreak of eczema. I have no idea why this thing has alcohol in it but it burns like a star when you put it on severely irritated skin. Note: I originally gave this 3 stars, but Eczema Honey reached out to me to offer a refund. I didn't take it, but I appreciated that they *would* do that. Plus, my acute outbreak has subsided and it's perfectly fine to use now, so just be warned it hurts to apply if you have an active eczema flareup!
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Reviewed in the United States on July 29, 2025
R
Verified Purchase
RuRu
Boise, US
★★★★★ 5
Absolutely worth the money!!
I'm 38 and I've never had eczema but I did always have sensitive skin. About a week ago I noticed a dry patch under my eyelid and boy did it flare up very quickly. I tried several plant based products for eczema but it just burned. I decided this product would be my final purchase before going to urgent care. I received this product 2 days ago. After reading the reviews I decided to slowly add this to my skin. Now it did burn on the part that was super worse than the other so I made sure to put very thin amounts till my skin could handle a thick application. Id say I put the cream on about 6times the first day by the next day I could already see the difference the swelling and redness went away. The second day I did the same no more slight burning my skin is still dry but it is healing. I would definitely give it a try if you're experiencing eczema for your first time!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 28, 2025
T
Verified Purchase
Tricia Baker
Battle Creek, US
★★★★★ 5
Itch-Free Face :)
This cream made a difference day one! It soothed the skin around my eyes and eyelids plus on my face. I forgot to wash my face one night and my skin was still outbreak free and felt so smooth. I haven't had itchy skin since I started using this cream. I would definitely recommend to a friend.
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Reviewed in the United States on April 22, 2026
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Verified Purchase
Jennifer Maldonado
New York, US
★★★★★ 1
Ouch! I paid WHAT for this?
This "eczema cream" contains alcohol. It says you can use it on your face and body. I applied the cream to my face and it burned my eyes. I then read that the ingredients contain alcohol. It did NOT help with my eczema at all. Everyone's skin is different, but I personally was very disappointed especially at $20 for 2oz. that the product ingredients were not soothing, burned my eyes, and dried out my skin more than it already was.
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Reviewed in the United States on April 17, 2026
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
Effective and simple
Love this cream !!
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Reviewed in the United States on June 5, 2026

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