Concrete & Masonry Sealers Q&A

Question 1

Can this be used to seal 3/8" stone tile and the grout? I have almost a full gallon leftover from another project and am hoping to use it here. Thank you. View answer

Asked 5 ´years ago

Question 2

I applied this product 10 years ago on my interior, colored concrete floor. I think it has performed well, though certain stains have still gotten through- cat puke in particular- I guess that's pretty much acid...Question: can I re-apply another coat? Will it penetrate or just sit on the surface? How should I deep clean stained areas first? View answer

Asked 6 ´years ago

Question 3

Can this sealant be used for concrete candle holder and be safe to be heated and still be non-toxic? View answer

Asked 2 ´years ago

Question 4

Does this function as an air barrier? View answer

Asked 4 ´years ago

Question 5

I have already installed a grout that does not contain Portland cement. What no or low VOC sealer do you recommend? I prefer no VOC. View answer

Asked 5 ´years ago

Question 6

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 7

Can this go over the afm concrete floor paint to help prevent water and scuffs? View answer

Asked 4 ´years ago

Question 8

Hello. Is this able to be used on ceramic kitchen floor tiles? View answer

Asked 5 ´years ago

Question 9

AFM SafeCoat, WaterShield Item #1016 - we want to seal an interior brick wall to prevent it from shedding dust from the mortar. Will this (or another product) perform this? View answer

Asked 5 ´years ago

Question 10

Would any of your products work to seal a cmu foundation wall in a basement from the interior? View answer

Asked 1 ´year ago

Question 11

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 12

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 4 ´years ago

Question 13

I want to seal the concrete floor in my basement bathroom, to avoid staining (particularly around the toilet). I only want a clear sealant, and prefer no gloss. Is this AFM SafeCoat WaterShield a good option, or might I be better off with the MexeSeal? View answer

Asked 4 ´years ago

Question 14

Can this concrete sealant be used to stop erosion of garden sculptures? View answer

Asked 1 ´year ago

Question 15

We covered a shower pan with very small pebbles and sanded grout. The sealer we used is not holding up where the water hits. Can you recommend any sealer for sanded grout preferably with a sheen? Thank you. View answer

Asked 5 ´years ago

Question 16

We have an old house with an outdoor patio with both terracotta and limestone tiles. Is there any single product you have that could be used to seal both? And if not, which for each? View answer

Asked 2 ´years ago

Question 17

I have a pebble shower floor that needs a sealant.What do you recommend? View answer

Asked 4 ´years ago

Question 18

Can it be reapplied to basement cinder blocks 10+ years after first treatment (due to reemergence of moisture)? View answer

Asked 1 ´year ago

Question 19

Will this sealer work to prevent Radon gas from coming through the concrete? I have an unfinished basement with a slightly high radon level. View answer

Asked 5 ´years ago

Question 20

Is there a natural or safe coat matte sealer for slate? Looking for the natural stone look with no gloss. View answer

Asked 6 ´years ago

Question 21

To add to my last question...can this sealer be used to seal Mapei Ultracolor Plus Max high performance, rapid setting grout? The grout says it has bio block technology but I don't know what that means. I want to make sure it can be used over the grout I used. Thank you!! View answer

Asked 1 ´year ago

Question 22

Is safecoat grout sealer PFAS free? View answer

Asked 1 ´year ago

Question 23

Need to seal a dock that is out over a lake, it has to be water/fish friendly? View answer

Asked 6 ´years ago

Question 24

I'm building a tiny home on a trailer. I want the walls to breathe but still be waterproof beneath the cedar siding. This product seals too strongly for that correct? What would you recommend? I might be driving in the rain at times so water intrusion will be higher than a standard build. View answer

Asked 5 ´years ago

Question 25

Can I use this on an interior exposed aggregate floor inside a sauna? We are looking to seal the exposed aggregate with something eco friendly. View answer

Asked 6 ´years ago

Question 26

Paintable for outdoors? View answer

Asked 5 ´years ago

Question 27

Looking forward a decorative coating for steel posts on outdoor pavilion. To texturize like wood...Would this be thick rough to create a raised texture, hold up, and how long is setup time? (Allowing time to apply "texture") View answer

Asked 5 ´years ago

Question 28

If this is applied on untreated pine boards used to construct raised garden beds, and if 4 coats are used, can exterior wood paint or stain be applied over the top coat of this product, directly; will the paint or stain adhere to this product when it has dried according to the manufacturers' drying instructions? View answer

Asked 2 ´years ago

Question 29

Does this expire? I have some I bought 2 years ago (never opened the bottle). View answer

Asked 2 ´years ago

Question 30

Can this be used on concrete prior to using the magic bullet flooring adhesive? View answer

Asked 5 ´years ago

Question 31

Can this be used to seal grout for a reptile rock wall? View answer

Asked 2 ´years ago

Question 32

Can this, or GBS Penetrating Concrete Sealer, be used over a coating of Xypex on basement block walls as an extra layer of protection? (Yes, a basement drainage system is also being installed.) View answer

Asked 5 ´years ago

Question 33

I need a non-toxic grout sealant. Three questions about this product: 1) Can I use this grout sealer for a tile shower and bathtub? i.e. the tile will routinely be submerged in water 2) Does this grout sealant contain PFAS? Is it LEED compliant? View answer

Asked 1 ´year ago

Question 34

Does the tile sealer seal the grout as well? View answer

Asked 2 ´years ago

Question 35

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 1 ´year ago

Question 36

Does this work on concrete basement floors to make them less friable? Concerned about potential silica dust so want to seal the floors. Also the basement floor tends to get wet when it rains. View answer

Asked 1 ´year ago

Question 37

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

Asked 2 ´years ago

Question 38

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

Asked 3 ´years ago

Question 39

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 1 ´year ago

Question 40

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

Asked 6 ´years ago

Question 41

Can this product be used on a shower wall? I see it's not meant for shower floors but what about walls? View answer

Asked 1 ´year ago

Question 42

We just put up a stained cedar outdoor pavilion. What would be the best water based sealer? View answer

Asked 6 ´years ago

Question 43

hi there, can this product be applied to stucco? View answer

Asked 3 ´years ago

Question 44

Hi there, would this be an appropriate product for sealing stucco in a commercial kitchen application? View answer

Asked 3 ´years ago

Question 45

How many coats of this would I need to seal a basement floor against radon and water vapor? View answer

Asked 6 ´years ago

Question 46

Is this ok to use on a kitchen backsplash? What is the best way to apply, in a spray bottle? View answer

Asked 5 ´years ago

Question 47

Can I add a tint to this sealer? View answer

Asked 3 ´years ago

Question 48

What would you use to coat inside of cast iron windmill oil pan with pin hole leaks? View answer

Asked 5 ´years ago

Question 49

Can this be applied with a hand-pump garden sprayer? View answer

Asked 6 ´years ago

Question 50

Can this be used on a concrete birdbath? View answer

Asked 5 ´years ago

Concrete & Masonry Sealers Q&A

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