Concrete & Masonry Sealers Q&A

Question 1

Can I use this to seal raw Saltillo tile? Does this change the color of the tile at all? I'm looking for something matte. View answer

Asked 2 ´years ago

Question 2

Will this penetrating sealer block both moisture and any below slab off-gassing/gasses? View answer

Asked 3 ´years ago

Question 3

I have a some questions concerning your GBS Penetrating concrete sealer. I want to use it on a basement floor that has some areas that were ground down to make it level. It also has some areas the were patched with a concrete patch. Do I need to etch the concrete where it was ground and patched? Also how long can it be stored? I want to order it now when it will not get cold during shipping, but I plan to apply it on my basement floor later this winter. I can store it so it will not get cold and the basement room will be heated as well. Thanks , Julie View answer

Asked 5 ´years ago

Question 4

I have up carpet and have a concrete floor with a big crack running through it. I had a foundation guy check it, and he said foundation is okay but crack needs to be sealed with epoxy before covering with any type of flooring such as ceramic tile. I am extremely chemically sensitive. Do you have a product that might work for this? View answer

Asked 6 ´years ago

Question 5

Does this product contain PFAs or PFOAs? View answer

Asked 2 ´years ago

Question 6

Can this product be used to seal outdoor pavers after weeding and power washing, to prevent weeds invading vigorously? View answer

Asked 4 ´years ago

Question 7

Will this darken grout color? View answer

Asked 5 ´years ago

Question 8

Will this product work on a honed (not polished) granite bathroom countertop? View answer

Asked 5 ´years ago

Question 9

I have a terra cotta kitchen floor that hasn't been impregnated or sealed for more than 18 years. What do you suggest especially with a household with cats? View answer

Asked 7 ´months ago

Question 10

Is this good for a Terrazzo stone floor? Thank you! View answer

Asked 2 ´years ago

Question 11

May thinset or mastic be used on top of this product? View answer

Asked 5 ´years ago

Question 12

Can this product be used on cultured or veneered stone around a wood stove that gets daily warm ? View answer

Asked 2 ´years ago

Question 13

Is this good for saltillo after the tile has been stripped of all sealers? View answer

Asked 4 ´years ago

Question 14

What sheen is best for a natural slate kitchen floor? Our floor looks very dry, and we don't mind it looker darker with a sealant but don't want extremely shiny. View answer

Asked 5 ´years ago

Question 15

Will this work on Terrazzo tiled floor? View answer

Asked 5 ´years ago

Question 16

Can I use this on my slate kitchen floors? View answer

Asked 4 ´years ago

Question 17

Can this be used on previously sealed concrete floors? We are looking for something to help reduce the off-gassing from the sealant already applied. View answer

Asked 2 ´years ago

Question 18

Is this product safe to use on flagstone that is being used as countertop in a bathroom? View answer

Asked 5 ´years ago

Question 19

Does this leave a scratch resistant surface on concrete? View answer

Asked 4 ´years ago

Question 20

Two questions. 1. The specs say 1 coat is recommended, but the description says it waterproofs and preserves in 3-4 coats. Am I missing something? 2. Is this suitable for interior concrete floors, or would it not be durable enough? View answer

Asked 3 ´years ago

Question 21

Will this product work in basements with a seeping leak? View answer

Asked 4 ´years ago

Question 22

I have some interior brick which is crumbling and creating dust. Would AFM Safecoat Grout Sealer be an appropriate product for this? View answer

Asked 6 ´years ago

Question 23

What are the ingredients? View answer

Asked 1 ´year ago

Question 24

Will this seal cinder block walls? View answer

Asked 4 ´years ago

Question 25

Do you have something I can use to seal a concrete bird bath that is leaking? It would have to be non toxic to birds drinking the water. Would you like me to experiment with a free sample of your product and report back to you? View answer

Asked 6 ´years ago

Question 26

I am interested in your GBS concrete sealer. I just put Behring concrete stain on my concrete floor so I don't know if the GBS can penetrate. View answer

Asked 9 ´years ago

Question 27

I need a non-toxic stain and sealer for the brick floors in my house. The floors are made from the same brick that is on the outside walls of my house. View answer

Asked 6 ´years ago

Question 28

Can this be used on tile and grout? View answer

Asked 1 ´year ago

Question 29

Will this work over concrete painted with acrylic concrete paint? View answer

Asked 7 ´months ago

Question 30

I'm looking at the product SafeCoat Hard Seal to cover up cat urine. The previous owner of my home had a cat and I'm looking for a way to cover the smell. How well does this product cover up cat urine that's on a concrete subfloor? Can this product be used on a concrete subfloor? Is there a better product that you are aware of that would do this?" View answer

Asked 9 ´years ago

Question 31

Can you use on exterior brick chimney? View answer

Asked 6 ´years ago

Question 32

Can this sealer be used over a concrete dye that has been applied topically to the concrete? View answer

Asked 12 ´months ago

Question 33

We have hairline cracks in small our concrete fish pond/water lily bowl. 1. Is this safe for the fish ( generic mosquito fish). Will it work as a crack sealer? View answer

Asked 5 ´years ago

Question 34

Use for concrete candles? View answer

Asked 3 ´years ago

Question 35

Can I apply a wax, like Bioshield Wax Finish, to a concrete floor that has been sealed with this product? Does it need a "sacrificial" wax layer? View answer

Asked 6 ´years ago

Question 36

Can this product be used for limestone retaining walls? View answer

Asked 4 ´years ago

Question 37

We are looking to seal our outdoor patio that seems to be eroding in spots. Is this as simple as applying with a roller brush, or do we need to do any prep before? View answer

Asked 4 ´years ago

Question 38

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

Asked 5 ´years ago

Question 39

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

Asked 2 ´years ago

Question 40

Can sealer be applied with brush? View answer

Asked 5 ´years ago

Question 41

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 3 ´years ago

Question 42

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

Asked 5 ´years ago

Question 43

On a recently enclosed patio, most of the slab is sealed. But there are a couple of patches where the sealer is no longer there. Am i able to cover the existing sealer with the Green Building Supply, Penetrating Concrete Sealer? View answer

Asked 3 ´years ago

Question 44

How often should GBS Concrete Sealer be reapplied to pavers? View answer

Asked 5 ´years ago

Question 45

Can I use this to seal my concrete before laying a moisture barrier and waterproof cork flooring? Is this necessary? I'm trying to avoid mold growth under the moisture barrier. View answer

Asked 1 ´year ago

Question 46

we live in a new building (6 years old) with slab floor that was not originally planned as living space without a moisture barrier under slab. Can we use this to seal the slab to put wool carpet on slab, or do you recommend another product?We used 6 mil plastic and some of our rooms have musty odor and after pulling 90 dollar a yard wool carpeting up we noticed a white residue under plastic and super strong musty odor. we read that mildew can form between concrete slab and plastic underlayment. View answer

Asked 6 ´years ago

Question 47

What is the best way to clean tiled/grouted shower walls before applying? Also, how many coats are recommended for a shower? Thanks! View answer

Asked 1 ´year ago

Question 48

I have off white porcelain tile in the kitchen and dark grey in another room Will this in the tiles. I worry about discoloration Also will this work on my counter top? View answer

Asked 5 ´years ago

Question 49

Do you sell a non-toxic product that can seal a grouted vinyl tile floor and make it less slippery? Any suggestions? Thanks! View answer

Asked 2 ´years ago

Question 50

How is this sealer applied? I presume it�s spread over the tile and grout and the excess wiped off. View answer

Asked 5 ´years ago

Concrete & Masonry Sealers Q&A

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