Concrete & Masonry Sealers Q&A

Question 1

After I apply your sealer on my driveway, can I still paint or stain it? View answer

Asked 6 ´years ago

Question 2

I think I need to seal my very old (from 1955) concrete basement floor but it has small holes (from nails that were taken out along with small amounts of concrete) that need patching. What should use to patch it with that will still allow the GBS penetrating sealer to be applied? I assume I can't patch it after applying the sealer because of adhesion issues. I intend to paint over the sealer. View answer

Asked 6 ´years ago

Question 3

Can you use this to seal the AFM SafeCoat Caulk in a shower? I'm looking for an alternative to grout since it contains silica View answer

Asked 5 ´years ago

Question 4

Partywall w/ cig smoker, basement smell is bad. What to use as vapor barrier on basement walls,floorboards,joists? View answer

Asked 3 ´days ago | AFM SafeCoat, DynoSeal, 1-Gallon

Question 5

Applied AFM Safecoat Grout Sealer to brand new floor tile grout. Let it cure and when it got wet it was dark. Reading reviews I am thinking this sealer won't block the grout from getting dirty or wet.... Is this true? Or do I need to apply more? Thanks In advance View answer

Asked 3 ´years ago

Question 6

Can this concrete sealer be used to seal wood? View answer

Asked 3 ´years ago

Question 7

Can the concrete floor paint be used on concrete basement walls? View answer

Asked 4 ´years ago

Question 8

What is the perm rating for this paint? View answer

Asked 3 ´months ago | AFM SafeCoat, Concrete Floor Paint

Question 9

Is this product recommended for sealing a garage floor? View answer

Asked 3 ´months ago

Question 10

Natural Stone Uses View answer

Asked 1 ´month ago | Green Building Supply, Penetrating Concrete Sealer

Question 11

Can your grout sealer seal in the mastic fumes that was used to adhere my backsplash tile? View answer

Asked 6 ´years ago

Question 12

I am building a tiny house in my backyard. The foundation will be a concrete mono slab. I would like to use the slab as the finished floor. Will this sealer be good to use for a finished look on a concrete floor? View answer

Asked 4 ´years ago

Question 13

How does salt affect the performance of this concrete floor sealer? View answer

Asked 9 ´months ago | Green Building Supply, Penetrating Concrete Sealer

Question 14

Can you apply Caliwel to the rubble walls of a small crawl space? (or other recommendations for Radon, moisture, mold) View answer

Asked 9 ´months ago | AFM SafeCoat, DynoSeal, 1-Gallon

Question 15

Can sealer be applied with brush? View answer

Asked 6 ´years ago

Question 16

After using this sealer on basement concrete walls, can I use adhesive to glue foam insulation panels to the sealed concrete? View answer

Asked 3 ´years ago

Question 17

Can sealer be applied to only one section of basement? View answer

Asked 6 ´years ago

Question 18

confused about which grout to use. can I use same grout to go around my porcelain sink in a wood counter and to fill in cracks in wood as well as cracks plaster to wood? View answer

Asked 6 ´years ago

Question 19

Will AFM Grout Sealer cause white sand grout to turn yellow over time? View answer

Asked 28 ´days ago | AFM SafeCoat, Grout Sealer, 1-Quart

Question 20

How can a product be sold as safe and non-toxic if the label says to avoid breathing the vapor or mist? View answer

Asked 5 ´years ago

Question 21

Will this work on floor tiles? View answer

Asked 4 ´years ago

Question 22

So is this considered breathable? As a new slab takes 2 years to fully dry... will this trap moisture or let it come through? View answer

Asked 2 ´years ago

Question 23

Can this product be used to dry lock basement walls as well? View answer

Asked 6 ´years ago

Question 24

Can I use the safe coat watershield in a shower floor with travertine tile to seal it? View answer

Asked 4 ´years ago

Question 25

I bought this paint to be used with the Deck Revive and Concrete Revive products. But I'm noticing on their website that it says to use with a "Gloss Acrylic Latex paint" whereas this paint says semi-gloss. Will this paint work with the Deck Revive and Concrete Revive products? Is it a Gloss Acrylic Latex paint? View answer

Asked 6 ´years ago

Question 26

Can any of your top coat products be used on a laminate countertop that's been painted with several layers of paint? And is it food safe? View answer

Asked 2 ´years ago

Question 27

I have a basement with a poured concrete floor and block walls. I also have a radon issue. Radon mitigation has been installed and is providing good evacuation of the air under the slab BUT i believe that the unsealed block walls are "leaking" enough air to bring some radon into the space. Will treating the walls with GBS seal the walls against any airflow and hence the radon that would be carried in with the Air? View answer

Asked 7 ´years ago

Question 28

For sealing a high traffic concrete floor, how frequently should this be reapplied? Can it be reapplied without refinishing? View answer

Asked 5 ´years ago

Question 29

I'd like to use this product on my basement concrete floor. However, I tested my concrete floor PH level with a 9 & 10 result. Can I still use this product with that high of a PH level? And also, may I later paint over this sealer? View answer

Asked 5 ´years ago

Question 30

how long to wait on new poured concrete floor before painting? View answer

Asked 6 ´years ago

Question 31

Will this product leave a deeper tone or "wet look? Does it change the slip resistance? I'm using it on an exterior flat fieldstone patio with very rough surface. View answer

Asked 2 ´years ago

Question 32

Can this be used to seal grout in the floor of the shower? We have porcelain tile. View answer

Asked 5 ´years ago

Question 33

Hi folks, I'm wondering if your product is available in Baja California? View answer

Asked 3 ´years ago

Question 34

Can this coating be used with a water catch made from concrete are drinking water? View answer

Asked 7 ´years ago

Question 35

Is there a datasheet available for this product? Trying to see if it claims reduction in vapor transmission.If not, is there a different waterproofing agent available to spray/apply to concrete that is compatible with Sustain 1195? View answer

Asked 1 ´year ago

Question 36

Hello! This looks like a great product for our garage floor. What would you recommend for the garage walls (and basement walls)? They have not been painted in decades, have been known to get damp (even wet after heavy rainfall). Would you recommend sanding first (with what product), then priming (with anything in particular), and then painting? We'd like a product that is eco-friendly/non-toxic/low-VOC but that will also hopefully protect against moisture/mildew etc. Thanks very much! View answer

Asked 3 ´years ago

Question 37

Hi! We exposed concrete columns in our 1961 condo and think it would be good to apply a sealer of some sort. One reason would be to create a smoother service in the event someone brushes up against the wall so clothes won't snag or skin won't get scratched. What product would work best for that? We are not looking to paint and do not want a wet look Thank you! View answer

Asked 5 ´years ago

Question 38

Hi, I am thinking of using the GBS Penetrating Gloss Sealer on the concrete floor of an artist studio. Is it appropriate? Thanks View answer

Asked 6 ´years ago

Question 39

Can this be applied over black mastic? View answer

Asked 1 ´year ago

Question 40

Is this grout sealer at all vapor permeable? I'm installing tile on a slab and trying to stick with a vapor permeable tile assembly so I don't trap any vapor coming up from under the slab. View answer

Asked 2 ´years ago

Question 41

The exterior wall of our basement has been leaking for a few years when it rains. Black mold is appearing. This is not a dripping situation inside our basement but just a damp one. We spent a bundle last week on having our yard graded and it did nothing, sad to say. I'm looking to seal this wall very well (cinder block). Which product do you recommend? We want to go green. Thank you and thanks for creating these safer products. View answer

Asked 6 ´years ago

Question 42

Hi! i bought a gallon and painted the inside of my planters but read in your instructions it should not be exposed to sun or the elements. Since mt boxes are angled, above soil line there will be 10 inches exposed to sun and rain on all my 10 planters. Should I coat this with something else? Ideally white (and even more ideal if i don't need to coat again but i do want it to last). Thank you! View answer

Asked 4 ´years ago

Question 43

Can I use this in bathroom shower to seal grout? Also can I use it for exterior applications? View answer

Asked 3 ´years ago

Question 44

Do y'all have a product safe to cover asbestos mastic on concrete floors? View answer

Asked 4 ´years ago

Question 45

Can we paint over the gbs concrete sealer and the seal faux paint ? We live in florida and have enclosed concrete patio. View answer

Asked 6 ´years ago

Question 46

Why is it not recommended to apply on shower floor? I'm looking for a non-toxic product to seal a honed marble floor in a bathroom (shower floor and general bathroom floor). View answer

Asked 2 ´years ago

Question 47

Does this help with a leaking roof? View answer

Asked 6 ´years ago

Question 48

Is this safe to use to refinish a concrete shower pan? View answer

Asked 6 ´years ago

Question 49

Hello. I am planning to build a raised vegetable bed. Can I use DynoSeal with treated wood? And if yes, would it prevent chemicals from leaching to the soil? View answer

Asked 6 ´years ago

Question 50

Can this be used the same way as mastic to seal HVAC flex ducts? View answer

Asked 2 ´years ago

Concrete & Masonry Sealers Q&A

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