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Epoxy on shop floor. Sand or no sand?

spope14

Stainless
Joined
Jan 29, 2004
Location
Claremont, NH
There are special additives for epoxy coats that make them non slip. I know it is not sand, but may be one of the shark grip things or something like that. Sand can wear out an epoxy finish faster anyway, have seen this too often.

How about just a concrete sealer, about three coats as mentioned. I have had this in my shop for fifteen years now, gteat wearability. Never really loses color. One area got "dykemed" in a major spill, I used laquer thinner and removed the coating and re-coated the floor in that area. Another dyken spill occured, this will be done again in the spring. I honestly wonder if this would have been possible on an epoxy floor? Really do not know.
 

Davis In SC

Diamond
Joined
Sep 14, 2005
Location
South Carolina USA
Another dyken spill occured, this will be done again in the spring. I honestly wonder if this would have been possible on an epoxy floor? Really do not know.
Quite possible to spill Dykem on an Epoxy floor
, but impossible to remove.. I dropped a 1 quart jug of it, top was off... big stained area. I wiped up the spill and started cleaning up with remover ASAP.. Our grey epoxy floor has a big blue spot..
 

GregSY

Diamond
Joined
Jan 1, 2005
Location
Houston
Jeez, I can answer that - no sand. I just did my floor and hate the sand. I believe it is recommended for the intial coat only, not the later coats, but in any case avoid it - it makes application harder and the floor less appealing.

If your customer is over 100 years old and still wears hard leather soled shoes, he might slip on a non-sand floor. But if he is like everyoneelse alive he is wearing rubber soled shoes which will be just fine.

Personally, I will never coat another floor again. If I did it all over I would just etch the floor then apply a concrete sealer and/or stain and be done with it.

Plus, make sure your customer is prepared to change all the steel casters on his equipment to urethane - a hidden cost of floor coatings.


BTW I used Sikagard 62 100% solids epoxy. It's a great product, but they all suck.
 
Joined
Jun 25, 2022
Sand is a mixture of particles of different rocks. So the question is :- what size particles of what rocks are best for this purpose? I would pose this question to the supplier and unless he can furnish you with a precise definition, I would pass this time. FWIW In the UK there two specs for sand (BSS 1199 and 1200), soft sand for making mortar and sharp sand for pointing. No builders supplier (including the "super" store) stock sand to a BSS spec, they just stock what is quarried localy so they can sell it cheap. If you are lucky, it might be close to the BSS mix. Which is that, when the sand is passed through a series of sieves of decreasing mesh size (I forget how many), there should be an equal volume of particles caught in each mesh. Basically so the sand particles are not all the same size. Now for your use, I would think that the particles should be of a limited size range. I would think adding sand to the epoxy would increase its life many times over, because you will be trying to abrade the sand NOT the epoxy. Davis in SC, wrote that the epoxy surface got less slippery with age, cos the top coat has got abraded?, first signs of wear?
Frank epoxy floor coating las vegas
P.S. Just remembered TV transmission towers are painted with a paint that contains mica flakes to afford grip to the riggers working on them.
Looking to put down a coat of clear over an 100% solids floor 1 yr old great bond no gloss , searched alot but still can't get a grasp for the amount of detail to look for while sanding. Here is my plan. Rent a floor scrubber from HD with very course pad, degrease and clean floor, then put down a stripper( for failed wax attempts to gain gloss ) scrub again. Then use a random orbit polisher/sander with 80 gritt to floor by hand , then denatured alcohol wipe and re coat with 100%clear.
I am not clear on how to tell if my floor is sanded/prepped enough ( I have no gloss to stArt with to compare), Advise?
 

sfriedberg

Diamond
Joined
Oct 14, 2010
Location
Oregon, USA
I have mixed opinions about the sand. I have a methylmethacrylate floor, rather than epoxy, so the "sand" is probably granules of plastic or something like that. On the plus side, it absolutely provides a non-slip surface, which I have appreciated several times when dealing with oil spray or spills. On the minus side, it is much harder to clean. The surface eats rags and towels quickly, and it is harder to sweep (or wipe up spills) because the surface isn't smooth.
 

Strostkovy

Stainless
Joined
Oct 29, 2017
Due to a miscommunication, a chunk of my boss's home shop was brushed concrete with epoxy over it. That was reasonably grippy for walking on and posed little issue for anything else. And it didn't dig into your knees when kneeling.
 

CarbideBob

Diamond
Joined
Jan 14, 2007
Location
Flushing/Flint, Michigan
An old thread but my 2 cents.
Sand and a decent amount.
Yes it makes mopping a bit more difficult.
When we coated ours it had a bit of sand but not functional when the floor had coolant on it.
We refused to pay until they came back and added another layer with more grit.
My entire shop floor needs traction not just mats in front of machines.
This is not the wife's kitchen. We do real work and lots of moving around here.
We used to have painted concrete. Ask me about the lawsuit of an employee who slipped, grabbed the side of a normal steel table leg and sliced his hand open big style.
How to loose 80 large on a small spot of water.
Bob
 








 
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