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Sealer with Anti-Slip additive on Burned Black / Hard troweled Concrete?

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amccrea

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Joined
Feb 8, 2012
Messages
5
I'm getting ready to have a new concrete shop floor (40 x 60) poured.

My question is... On a "Burned Black / Hard Troweled Finished" floor, is there a sealer that can be applied with an anti-slip additive (Shark Grip) to reduce slipperiness? I am not really looking for an epoxy coating, but something more like a semi penetrating sealer that would be easy to reapply if I damage it. I like the look of concrete, and I'd like a really smooth floor. But I am worried about a "Burned Black / Hard Troweled Finished" floor being dangerously slippery. I'd like it to be easy to clean up and also have a satin or even a semi-glossy look to it. I am open to the idea of also using a densifier to create a really hard surface.


Example...

Can I add something like this: https://www.legacyindustrial.co/products/hdgrip-soft-skid-media/ (Ultra Fine)

To this sealer: https://www.legacyindustrial.co/products/hd40-concrete-guard/

Using this method: Application Procedure: Spray Apply Product, Work Into Slab With Micro-fiber Pad, Repeat 2 Or 3x As Directed. High-speed Burnish Directly After Last Treatment, Using A Hogs Hair Pad.

Here is an example of this product being used (without anti-slip) and what the floor looks like (I like this look): https://allgaragefloors.com/densifier-sealer-garage-build-project/



Here are all the details:

I will be having a shop floor (40 x 60) poured very soon and am trying to decide exactly what level of smoothness to ask for. My contractor is going to take me to look at some finished floors soon that will hopefully give me some idea of what I'd like.

I would like the floor as smooth as possible, but am concerned about it being slippery when it is wet. I'll be parking in the shop regularly and we have a lot of rain here. "Burned Black" is really what I think I want (from pictures), but I know this type of finish can be dangerously slippery when wet.

So the question about the sealer is me wondering if there is a way to have the glossy dark floor and also make it less slippery.


From what I have read here are the finish options: (Terminology varies depending upon who you talk to.)

Burned Black / Hard Troweled Finish
-Machine troweled / burnished (burnt) to the point that the surface darkens and is glossy.

Smooth Troweled Finish
-This would be very smooth, not darkened, not glossy and have a slight bit of texture.

Fuzzy Finish
-A bit more texture than smooth troweled. Probably could easily see swirl marks from the power trowel.


Side note: I have ruled out "Ground and Polished" due to cost.

A few photos of my shop:

ShopExterior.jpgShopInterior.jpg
 
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Shea

Well-known member
Joined
Sep 19, 2012
Messages
2,860
Location
California
amccrea said:
I'm getting ready to have a new concrete shop floor (40 x 60) poured.

My question is... On a "Burned Black / Hard Troweled Finished" floor, is there a sealer that can be applied with an anti-slip additive (Shark Grip) to reduce slipperiness? I am not really looking for an epoxy coating, but something more like a semi penetrating sealer that would be easy to reapply if I damage it. I like the look of concrete, and I'd like a really smooth floor. But I am worried about a "Burned Black / Hard Troweled Finished" floor being dangerously slippery. I'd like it to be easy to clean up and also have a satin or even a semi-glossy look to it. I am open to the idea of also using a densifier to create a really hard surface.


Example...

Can I add something like this: https://www.legacyindustrial.co/products/hdgrip-soft-skid-media/ (Ultra Fine)

To this sealer: https://www.legacyindustrial.co/products/hd40-concrete-guard/

Using this method: Application Procedure: Spray Apply Product, Work Into Slab With Micro-fiber Pad, Repeat 2 Or 3x As Directed. High-speed Burnish Directly After Last Treatment, Using A Hogs Hair Pad.

Here is an example of this product being used (without anti-slip) and what the floor looks like (I like this look): https://allgaragefloors.com/densifier-sealer-garage-build-project/



Here are all the details:

I will be having a shop floor (40 x 60) poured very soon and am trying to decide exactly what level of smoothness to ask for. My contractor is going to take me to look at some finished floors soon that will hopefully give me some idea of what I'd like.

I would like the floor as smooth as possible, but am concerned about it being slippery when it is wet. I'll be parking in the shop regularly and we have a lot of rain here. "Burned Black" is really what I think I want (from pictures), but I know this type of finish can be dangerously slippery when wet.

So the question about the sealer is me wondering if there is a way to have the glossy dark floor and also make it less slippery.


From what I have read here are the finish options: (Terminology varies depending upon who you talk to.)

Burned Black / Hard Troweled Finish
-Machine troweled / burnished (burnt) to the point that the surface darkens and is glossy.

Smooth Troweled Finish
-This would be very smooth, not darkened, not glossy and have a slight bit of texture.

Fuzzy Finish
-A bit more texture than smooth troweled. Probably could easily see swirl marks from the power trowel.


Side note: I have ruled out "Ground and Polished" due to cost.

A few photos of my shop:
Click to expand...
Legacy Industrial's HD40 is a micro-thin coating that penetrates more than coats. You cannot add anti-slip media to it.

I think the product you should take a look at is the Coval No Prep Concrete Sealing Kit by ArmorPoxy. It will provide the appearance you are looking for and has a high slip resistance rating as is. A primer coat is sprayed on with the supplied pump-up sprayer, followed by the Coval Sealer. No concrete prep is necessary other than making sure the surface is clean. You can purchase it here from ArmorPoxy.

I believe you can add and mix in a fine anti-slip media to Coval that will work with the sprayer, but you will need to check with them. There is a thread started by another GJ member who applied this exact kit to his garage floor.

Coval Concrete Install Review

I thought I would post a quick thread on my experience installing Coval Concrete on my shop floor. I just finished up Friday doing 2/3 of my floor. Overall it was a good experience and we will see how well it holds up. I purchased it from Armorpoxy this spring. I also got a low VOC epoxy...
www.garagejournal.com www.garagejournal.com
 
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amccrea

Member
Joined
Feb 8, 2012
Messages
5
Shea said:
Legacy Industrial's HD40 is a micro-thin coating that penetrates more than coats. You cannot add anti-slip media to it.

I think the product you should take a look at is the Coval No Prep Concrete Sealing Kit by ArmorPoxy. It will provide the appearance you are looking for and has a high slip resistance rating as is. A primer coat is sprayed on with the supplied pump-up sprayer, followed by the Coval Sealer. No concrete prep is necessary other than making sure the surface is clean. You can purchase it here from ArmorPoxy.

I believe you can add and mix in a fine anti-slip media to Coval that will work with the sprayer, but you will need to check with them. There is a thread started by another GJ member who applied this exact kit to his garage floor.

Coval Concrete Install Review

I thought I would post a quick thread on my experience installing Coval Concrete on my shop floor. I just finished up Friday doing 2/3 of my floor. Overall it was a good experience and we will see how well it holds up. I purchased it from Armorpoxy this spring. I also got a low VOC epoxy...
www.garagejournal.com www.garagejournal.com
Click to expand...
Interesting. In the installation instructions under "New Concrete" it says, "Hard troweled smooth surfaces need to be abraded or chemically etched to open up the cap and remove the laitance on the concrete surface"

My most urgent question to answer is should I go with a "Hard Troweled" floor finish. I'll hopefully be going to look at some floors this week that will help answer that question.

Pros
Pretty
Smoooooth
Hard Durable Surface

Cons
Slippery when wet
Most sealers or coatings seem to want the surface ground or etched
Would require more grinding if polishing (I don't plan to grind and polish)
 
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amccrea

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Shea

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amccrea said:
Interesting. In the installation instructions under "New Concrete" it says, "Hard troweled smooth surfaces need to be abraded or chemically etched to open up the cap and remove the laitance on the concrete surface"
Click to expand...
Contact ArmorPoxy. Etching is not required when using the primer.
 
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dcg9381

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Messages
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Location
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You can add anti-slip to polyurea and it works great. You may consider that "epoxy like" though. Stained under the coating, garage floor can look like anything you want.
amccrea said:
Burned Black / Hard Troweled Finish
-Machine troweled / burnished (burnt) to the point that the surface darkens and is glossy.
Click to expand...
How much does that finish cost?

I've done HD6600-MMA as a sealer over stained drives and porches, but it's SLICK and I don't think you can use it with anti-slip.
 
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amccrea

Member
Joined
Feb 8, 2012
Messages
5
dcg9381 said:
You can add anti-slip to polyurea and it works great. You may consider that "epoxy like" though. Stained under the coating, garage floor can look like anything you want.

How much does that finish cost?

I've done HD6600-MMA as a sealer over stained drives and porches, but it's SLICK and I don't think you can use it with anti-slip.
Click to expand...
The people I have talked to didn't seem to indicate it wouldn't cost any more or at least it would just be a little more labor. They would just continue troweling until it is burnt/burnished or until I say stop. I've seen pictures and they looked nice, but never seen one in person. I don't find a lot of talk about this online, but it seems to be common for warehouse floors as they want them really smooth and hard, but don't necessarily want to go the expense for grind and polish. I think sometimes they add hardener or densifier while power troweling to make it even more dense.

Here are some examples:
https://www.reddit.com/r/Concrete/comments/1edbmhr
https://www.facebook.com/video.php?v=2411913025666888
https://www.reddit.com/r/Concrete/comments/9ja20j https://www.reddit.com/r/Concrete/comments/jfme2a

Here is an interesting article that describes a lot of the science of a hard troweled finish and how it is so dense it can actually work as a curing sealer: https://www.concreteconstruction.ne...-equipment/self-curing-warehouse-floors_o?o=0

Scanning electron microscope image of hard-troweled concrete (1/4" depth):
1730157608785.png
 
Last edited:
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Carchie

Member
Joined
Apr 24, 2018
Messages
22
amccrea said:
I'm getting ready to have a new concrete shop floor (40 x 60) poured.

My question is... On a "Burned Black / Hard Troweled Finished" floor, is there a sealer that can be applied with an anti-slip additive (Shark Grip) to reduce slipperiness? I am not really looking for an epoxy coating, but something more like a semi penetrating sealer that would be easy to reapply if I damage it. I like the look of concrete, and I'd like a really smooth floor. But I am worried about a "Burned Black / Hard Troweled Finished" floor being dangerously slippery. I'd like it to be easy to clean up and also have a satin or even a semi-glossy look to it. I am open to the idea of also using a densifier to create a really hard surface.


Example...

Can I add something like this: https://www.legacyindustrial.co/products/hdgrip-soft-skid-media/ (Ultra Fine)

To this sealer: https://www.legacyindustrial.co/products/hd40-concrete-guard/

Using this method: Application Procedure: Spray Apply Product, Work Into Slab With Micro-fiber Pad, Repeat 2 Or 3x As Directed. High-speed Burnish Directly After Last Treatment, Using A Hogs Hair Pad.

Here is an example of this product being used (without anti-slip) and what the floor looks like (I like this look): https://allgaragefloors.com/densifier-sealer-garage-build-project/



Here are all the details:

I will be having a shop floor (40 x 60) poured very soon and am trying to decide exactly what level of smoothness to ask for. My contractor is going to take me to look at some finished floors soon that will hopefully give me some idea of what I'd like.

I would like the floor as smooth as possible, but am concerned about it being slippery when it is wet. I'll be parking in the shop regularly and we have a lot of rain here. "Burned Black" is really what I think I want (from pictures), but I know this type of finish can be dangerously slippery when wet.

So the question about the sealer is me wondering if there is a way to have the glossy dark floor and also make it less slippery.


From what I have read here are the finish options: (Terminology varies depending upon who you talk to.)

Burned Black / Hard Troweled Finish
-Machine troweled / burnished (burnt) to the point that the surface darkens and is glossy.

Smooth Troweled Finish
-This would be very smooth, not darkened, not glossy and have a slight bit of texture.

Fuzzy Finish
-A bit more texture than smooth troweled. Probably could easily see swirl marks from the power trowel.


Side note: I have ruled out "Ground and Polished" due to cost.

A few photos of my shop:

ShopExterior.jpgShopInterior.jpg
Click to expand...
Trying to balance a glassy "burned black" look with shop floor safety is a classic way to accidentally build an indoor skating rink lol. Ran across this archived garage thread and had to stop because every car guy falls in love with that smooth finish before facing the reality of how slick it gets.

To give you an idea, my project car leaked a tiny bit of fluid on our burnished slab and turning a corner became an absolute drift session. Stellmann Non-Slip Coatings solved our problem by applying a specialized treatment that locked in a reliable grip while keeping the satin shine. For anyone designing a high-end workshop today, skip the roll-on additives unless you enjoy re-sealing the tyre tracks every year.
 
Last edited:
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amccrea

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Feb 8, 2012
Messages
5
Update: It's been over a year and half since I had it poured. I really like the finish. It is very smooth, easy to clean and feels very similar to the polished floors at Home Depot. I've notice that oil drips don't really soak in. I wipe them up with a dry rag and it hardly leaves a mark even after sitting a day or two. I had the finisher put on a temporary curing sealer that starts to wear off after a number of months. It is still slowly turning to powder and sweeps away with a broom. The floor is still drying in some places 1-1/2 years in due to the tight finish (And the sealer). I haven't noticed it being especially slippery when wet, which surprised me. It gets more squeaky/grippy than slippery. I have a lot of mats down for wiping feet though just in case.

My long term plan is to clean the rest of the temporary sealer off, fill the cut joints and then apply some sort of long term sealer. Lately I have been working on drywall, so the floor is going to need a good cleaning when that is done.

All that to say, I am glad I decided to go with "burned black". I went back and forth for a long time due to concerns about it being slippery.
 
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