How much microcement do I need?
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Start with the thing most coverage questions get wrong: there is no single coverage number. Every microcement product on our labels has two — one for the first coat and a bigger one for the second.
The first coat is doing the filling. It is going into texture, into trowel marks, into whatever the surface underneath actually looks like. The second coat is riding on a surface the first one already flattened, so the same pail stretches further.
Work with one average number and you will be short on coat one and left holding material after coat two. Work with both and the math is straightforward.
The full coverage table
These are the figures printed on the pails, with the cure times that go with them.
| Product | Coverage | Cure |
|---|---|---|
| Primer | 600–650 sq ft per pail | 30 min – 4 hr before the next step |
| Fiberglass mesh | 500 sq ft per roll | — |
| Build Coat | 275 / 310 sq ft (1st / 2nd coat) | 12 hr after 2nd coat |
| Microcement Coarse | 375 / 450 sq ft (1st / 2nd) | 12 hr after 2nd coat |
| Microcement Smooth | 600 / 725 sq ft (1st / 2nd) | 12 hr after 2nd coat |
| Sealer | 650 / 750 sq ft (1st / 2nd) | 2 hr after 2nd coat |
Primer is one coat. Build coat, microcement and sealer are two coats each. One thing to flag honestly: the sealer label gives a single coverage figure and does not split it by coat, so plan two coats against that one number and leave yourself room.
The math: add the fractions
For any two-coat product, take your area, divide it by the first-coat figure, divide it again by the second-coat figure, and add the two results. That gives you pails.
A 200 sq ft wall in Microcement Smooth: 200 ÷ 600 = 0.33, plus 200 ÷ 725 = 0.28. Total 0.61 of a pail. One pail covers it with room to spare.
Run that backwards and you get the number people actually want — how far one pail goes across both coats:
- Build Coat — about 146 sq ft per pail, both coats
- Microcement Coarse — about 204 sq ft per pail, both coats
- Microcement Smooth — about 328 sq ft per pail, both coats
- Sealer — roughly 300–325 sq ft, on the label's single figure split across two coats
Those are our arithmetic on the printed figures, not separate label claims. Use them for planning and check the real numbers before you order.
You cannot buy half a pail
This is the part that surprises people, and it is the single biggest driver of what a small job costs.
Products are sold whole: Primer $330, Mesh $249, Build Coat $649, Coarse $749, Smooth $849, Sealer $599. If your bathroom needs 0.37 of a pail of Smooth, you buy a pail. The leftover is real material you paid for and will probably not use.
So the rough rates — about $8/sq ft on Core and $14/sq ft on Reinforced — describe jobs big enough to fill the pails out. A small room lands well above both, and there is no version of the pricing where it does not.
Worked example: a 120 sq ft bathroom over old tile
A bathroom floor is wet, and it is a floor that is not bare concrete. Both of those point at Reinforced: primer, mesh, build coat, microcement, sealer. Finish in Smooth.
- Primer — 120 sq ft, one coat, against 600–650. One pail. $330
- Mesh — 120 against a 500 sq ft roll. One roll. $249
- Build Coat — 120 ÷ 275 = 0.44, plus 120 ÷ 310 = 0.39. That is 0.83 of a pail. One pail. $649
- Smooth — 120 ÷ 600 = 0.20, plus 120 ÷ 725 = 0.17. That is 0.37 of a pail. One pail. $849
- Sealer — two coats over 120 sq ft, against 650 on the first and 750 on the second. One pail. $599
Total: $2,676, which is one of everything in the Reinforced system. Divide by 120 sq ft and you get about $22 per square foot — against a headline of roughly $14. You are not paying more for the material. You are paying for five pails you have only partly used.
The useful consequence: that same $2,676 of material would stretch a lot further. The build coat is the limit at about 146 sq ft across both coats, so the kit has roughly another 25 sq ft in it. If there is a second small room or a shower surround in the plan, doing them together is meaningfully cheaper per foot than doing them a year apart.
Worked example: a 400 sq ft bare concrete floor
Bare concrete indoors is the one floor that does not need the mesh, so this is a Core job: primer, microcement, sealer. Coarse for the traffic.
- Primer — 400 sq ft, one coat. One pail. $330
- Coarse — 400 ÷ 375 = 1.07, plus 400 ÷ 450 = 0.89. That is 1.96 pails. Two pails. $1,498
- Sealer — 400 ÷ 650 = 0.62, plus 400 ÷ 750 = 0.53. That is 1.15 pails. Two pails. $1,198
Total: $3,026 across 400 sq ft, or about $7.57 per square foot — right around the $8 rule of thumb. Bigger area, fuller pails, rate lands where it should.
Now look at the Coarse line again. You need 1.96 pails and you are buying 2. That is 2% of margin on the product doing the visible work. Drop one batch, lose a section to a bad wet edge, or measure the room slightly generously and you are ordering a third pail at $749 mid-job. On a number that tight, either round up or check the area again carefully.
What changes your number
- Which system. Reinforced adds mesh and two build coats, and the build coat is the lowest-coverage product of the lot at 275 sq ft on the first pass. It is usually what sets how many pails you buy.
- Coarse or Smooth. About 204 sq ft per pail against about 328. Coarse is the base texture coat for high-traffic walls, floors and bathrooms; Smooth is the fine finish coat for walls, bathrooms and low-traffic floors. If you are running Smooth over Coarse, you are buying both.
- The condition of what is underneath. A rougher surface eats more on the first coat. The published figures assume you have prepped properly — sanded, vacuumed, primed evenly with no puddles or heavy spots.
- Walls as well as floors. Measure them separately and add them. Do not estimate a room as a single blob.
Check it before you order
Do the fractions yourself, then run the same numbers through the material calculator and see if you agree with it. Two methods landing in the same place is worth the five minutes, because the cost of being wrong is a whole extra pail and a stalled job.
For the money side — where the $8 and $14 come from, and what the small-area penalty looks like across different room sizes — read what microcement costs per square foot. If you have not settled on a system yet, the systems page is the place to start, and what microcement is covers the ground underneath all of it.
One last thing worth planning for alongside the material: a full Reinforced job stacks seven coats with 12-hour cures in the middle. Realistically that is a 2–3 day job, not an afternoon.
Microvella ships late 2026. Join the waitlist and we will email you the day it is ready to order.