Making my own micro-topping mix

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I'm trying versacrete polymer concentrate, I followed their "starting point" instructions to the tee for the mortar and got too dry of a batch. It requires "weighing" the sand and the cement then adding it to a measured liquid mixture 1:1 water/polymer. I'm sure that someone out there has a simpler recipe of just measuring out ratios of so many parts with great results.

Who has a good and easy recipe for a base? For the finish?

FYI: I used Ardex P51 for the primer, I seems to work just fine vs. buying their primer.

f'ing amazin' - 1 of the

f'ing amazin' - 1 of the highest household income areas in the world & we want to cut pennies,,, competition must be getting free fuel AND labor,,, nobody could have this much fun trying to invent new mixes - or so it seems to me.

best [the original] shorting-roll-your-own-long-on-bagg'd-mixes yic-yac

Cooks bake from the box,

Cooks bake from the box, genius create from scratch,

Let's hear it from those who dare to go out of the box please.

I make my own micro mix. I

I make my own micro mix. I mix 50 lbs of micro for $12 to buy 50 lbs would be around $60.

Exactly my point. Add that to

Exactly my point. Add that to the savings in shipping charges from a supplier. We are all going to have to get more creative at over $5 a gallon of gas. 2 bags of cement, 2 bags for silica was under $40, the polymer was $90 but can be used very economically, quality and exactness are critical.

We have already tested a ratio method, stay tuned.

We make our own overlay and

We make our own overlay and micro topping.

Not a Nick on manufactures at all.

We make our overlay (stamp overlay) in a concrete curbing trailer (we own three) one 4 cubic foot mix (wheel barrel) full at a time.

We did initially to do larger jobs without the hastle of mixing one bucket at a time (takes longer) and once we tested it out (our shop area(s), perfected the mix we then started to save money in the long run.

However we now are our own Tech Support...not always good. We have not had a product related delamination yet but it cost us a lot initially in research and development time and have to buy most of the materials bulk and it takes a little while to recognize a savings. But half our business is overlays : about 30,000 square feet this year.

Micro toppings:

Most (not all) micro toppings are highly Portland based. We use Portland and a silica flour plus a couple of types of plasticizers, as well a a bonding primer and mixed integral liquid polymer.

If you don't do a significant amount of them then making your own is a waste of time.


Thanks, actually my assistant

Thanks, actually my assistant and I have came up with this simple formula with good results.
Using an adjustable sand-mix method:
2 parts #60 sand
2 parts #90 sand
4 Parts cement
5 parts 50/50 Polymer/Water

4 parts #90 sand
4 parts cement
5 parts 50/50 Polymer/Water

2nd finish coat is optional, I have not tried this "silica flour" or "powder" yet. Any recommendations would be great.

No guarantee, you'll have to buy the bagged for that...and then again, sometimes you're out in the cold with the client anyway. You can pilot error with either method. Don't forget to prime generously and use a quality polymer, even indoors.

Microtopping Mix

Hi Guys,


This is an old thread but am hoping I can get some more info.  I am based way out of the U.S and the bag mixes cost way too much to get it shipped here for microptoppings to be competitive in our market.  


I have done alot of experimentation with diferent formulas.  You touched on Silica Flour which I have used a fair bit and have used quite a few different additives. We are after something that will give us enough work time with a  very smooth sandable finish the following day but still strong enough to last long term.  We aim to have a base coat and a feather finish similar to caddyaddy above.


My question is did anyone come up with a reliable quality mix they might be willing to share?


Any help or advive would be very much appreciated.