Concrete & Masonry Sealers Q&A

Question 1

Is this an adequate sealer for cement board on a tub surround? It will be tiled over. View answer

Answer posted 5 months ago

Question 2

Can this sealer be used on grout/tile on a heated floor? View answer

Answer posted 9 months ago

Question 3

1980s construction, poured concrete below grade (heavy clay), block walls mostly below grade to first floor, AFAIK no sealers applied. Semi-conditioned space but +60% humidity often a problem. Is there a recommended moisture percentage (per material)? Also, saw the dewpoint/temp note-does that mean a high RH can be ignored prior or during application? Thanks View answer

Answer posted 1 year ago

Question 4

Hi, I just put new tile on my home, and I'm about to add the grout and I'm looking for a sealer. I have 5 dogs and want something that is waterproof for when they have accidents and also they come in with dirty soil paws and would like for my grouts not to stain. I clean everyday so I will make sure it always clean but staining has happened to me before ina previous tile, and I didn't know sealers existed. What could be the best products for this. And also do I apply it at the same time as grout of after the grout has fully dried? View answer

Answer posted 1 year ago

Question 5

Good morning, will this work on lime plaster? Such as tadelakt? View answer

Answer posted 1 year ago

Question 6

Is there a way to see the color choices? View answer

Answer posted 1 year ago

Question 7

building a new structure which will be used as storage and workshop , walls will be cinder blocks and concrete roof , once roof has become ph neutral and the sealant applied , is it TOTALITY nontoxic and will not leach anything ?? ; what i am aiming at is to use the roof to collect rainwater , is this feasible with your product ?? View answer

Answer posted 1 year ago

Question 8

does it have an odor, I have a chemically very sensitive patient living at home, and a block foundation? View answer

Answer posted 2 years ago

Question 9

Will GBS Penetrating Concrete Sealer work for polished concrete? Do you carry any caulk, sand, or silica substance that can be used to fill cracks in the concrete prior to applying GBS Penetrating Concrete Sealer?The concrete in the basement was recently ground to "salt and pepper" look and caulking from radon mitigation was removed with it. The radon levels went up from what they were before. There are various hairline cracks that I planned to grind clean and fill prior to applying the sealer. View answer

Answer posted 2 years ago

Question 10

I need to wash and seal our old concrete window sills. Does our Concrete Sealant Safe Coat Penetrante blend in well with older sills? What do you recommend for cleaning the sills safely and effectively? Cracks should be filled with a silicone? View answer

Answer posted 3 years ago

Question 11

can you use this on wood/pine shelves I want to waterproof? Can i paint over them? View answer

Answer posted 3 years ago

Question 12

Do I use this before or after painting concrete or wood? View answer

Answer posted 3 years ago

Question 13

How soon before rain can this be applied? View answer

Answer posted 3 years ago

Question 14

once applied to the floor and is finished curing can it be damaged as a result of freezing floors? View answer

Answer posted 3 years ago

Question 15

Can this be used to seal cork wall tile? View answer

Answer posted 3 years ago

Question 16

Will this product adhere to pvc board ? View answer

Answer posted 4 years ago

Question 17

Can a water based stain be applied to the concrete prior to applying the sealer? View answer

Answer posted 4 years ago

Question 18

What product do you recommend to seal concrete kitchen countertops? Also, what to use to seal marble bathroom countertops? View answer

Answer posted 4 years ago

Question 19

Will this product work on grout we previously sealed and now cleaned with dawn liquid detergent? View answer

Answer posted 4 years ago

Question 20

Would this (or any of the concrete sealants or repellants) be safe for use inside concrete candles where the melted wax temp reaches at least 122F? View answer

Answer posted 4 years ago

Question 21

We will leave our concrete slab exposed in our new home until we are ready to tile it in coming months. If we apply WaterShield or WaterStop now, will that adversely affect our ability to lay tile later? View answer

Answer posted 4 years ago

Question 22

Could this grout sealer be used outdoors on a tiled balcony? We live in Texas, it is very hot here in the desert. View answer

Answer posted 4 years ago

Question 23

Can I use both a penetrating sealer and a surface sealer? I'm rehabilitating an old brick building into a bakery, so I want the brick floors to be ultra protected and strong, but also easily mop-able (but also not too slick). View answer

Answer posted 4 years ago

Question 24

I want to apply your product to the inside of a galvanized container for growing vegetables. Will this product leach into soil? Is it safe for this application? View answer

Answer posted 4 years ago

Question 25

Hi can this product be used on marble mosaic shower floor? View answer

Answer posted 4 years ago

Question 26

Is this suitable as a waterproofer on variance plaster in a shower? View answer

Answer posted 4 years ago

Question 27

Would you recommend this product to seal the interior of my brick wall? (I have temperature from the outside coming into my unit through the brick wall) View answer

Answer posted 4 years ago

Question 28

Can this be used to seal the inside of a concrete candle holder? I'm looking for something to keep wax (soy) from leaching through and withstand high flame heat, while being non toxic. View answer

Answer posted 4 years ago

Question 29

Hi! I make Quikrete Precision Grout candle/flower pots. The pot heats up when the candle burns for a while. Do you think this product is safe to seal the flower pot? View answer

Answer posted 4 years ago

Question 30

I live in an old farmhouse with a stone basement that have been parged. The walls crumble and create a mess. Will Watershield work? View answer

Answer posted 4 years ago

Question 31

Will this work for sealing concrete tiles on a bathroom floor? View answer

Answer posted 4 years ago

Question 32

I have an exposed vertical redwood beam and a small horizontal redwood shelf which I would like to seal. I also plan to put quartz stone tiles in a small area which need to be sealed. Would this work for both? View answer

Answer posted 4 years ago

Question 33

Please answer: I have a 1920's brick garage. The outside looks fine. The inside is lined with clay bricks and has some efflorescence/ spalling in one area. I cannot pressure wash. Can I just brush as clean as possible and apply? Do I apply outside and inside? Thank you View answer

Answer posted 4 years ago

Question 34

I want to seal a concrete shower. Is this a suitable product or could you recommend one? View answer

Answer posted 5 years ago

Question 35

Can I paint over GBS penetrating sealer on a cement floor with a completely natural Linseed oil paint? View answer

Answer posted 5 years ago

Question 36

Will GBS Penetrating sealer used on an exterior brick wall affect tuck pointing mortar joints , if needed, in the future? Will it make it more difficult to grind out the joints? Or affect mortar adhesion? View answer

Answer posted 5 years ago

Question 37

Is this good for outdoor terra cotta pavers?? View answer

Answer posted 5 years ago

Question 38

What is the best product to help seal and waterproof cinder blocks in a basement? View answer

Answer posted 5 years ago

Question 39

will this work for "slate"? I am in the process of finishing a pillar base, landing and stairs (outdoors). The landing and stairs are sheltered from the rain and sun. The pillar base is exposed to the rain and morning sun. If this works, should it be applied before grouting? or after? thank you! View answer

Answer posted 5 years ago

Question 40

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

Answer posted 5 years ago

Question 41

Hi, I'm interested in this product. I have 2500sq ft of floor tile and 3 bathroom showers. How many of these will I need and does all grout need sealed? View answer

Answer posted 5 years ago

Question 42

Can this application be used on a concrete raised garden bed? View answer

Answer posted 5 years ago

Question 43

Will this work on alumina cement grout? I was originally not going to seal as the manufacturer states it does not require a sealer but the grout still has a haze layer that continues to rub off and in some areas a small amount of sandy substance can be scratched off with a fingernail. Will this sealer help to bond and contain the grout? View answer

Answer posted 5 years ago

Question 44

Would this work for a tile bathroom shower? How often is reapplication needed? View answer

Answer posted 6 years ago

Concrete & Masonry Sealers Q&A

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