How to Install a One-Day Polyaspartic Garage Floor

A polyaspartic garage floor goes down in one day: base coat in the morning, clear coat in the afternoon, walk on it tomorrow, park on it in two days. The trade is working time. Polyaspartic and polyurea set in minutes, not the better part of an hour, so the job is about pace and small batches. This guide covers the Garage One-Day System in both finishes. The kits and the coatings on their own are in the polyaspartic garage floor coating collection.

Read this first: the two things that are different

• Working time. B-933 polyurea gives you 15 to 25 minutes per batch. T-444X polyaspartic gives you 10 to 20 minutes. Epoxy gives you 30 to 50. You mix half kits, you pour as soon as it is mixed, and you do not stop to answer the phone.
• Two people. One bay can be done alone. For anything bigger, one person mixes and pours while the other spreads, rolls and broadcasts. Do not try a 2-car one-day floor by yourself.

If you would rather have time than speed, the Garage Pro System is the epoxy version of the same floor. The two are compared in epoxy vs polyaspartic.

What is in the kit

Full flake, per car bay (350 sq ft)

• One 2.5 gal kit of B-933 Fast Cure Polyurea base coat, 99% solids, 4:1 mix, color matched to your flake blend
• One 40 lb box of flake
• One 2 gal kit of T-444X Polyaspartic clear, 1:1 mix
• The tool kit: 18 inch roller frame and two covers, 18 inch notched squeegee, mix wand, chip brush, spiked shoes, bucket, gloves and safety glasses. Floors of 1,400 sq ft and up get two.

Solid color, per car bay

• One 2 gal kit of T-444X with a pigment pack, for the base coat
• One 2 gal kit of T-444X clear, for the top
• The tool kit

Bring a drill, a shop vacuum, a flat floor scraper for the flake floor, painter's tape and a box of clean quart cups for splitting batches. The epoxy calculator picks the kit size from your measurements.

Prep is the same as any coated floor

Fast-cure coatings do not forgive bad concrete any more than epoxy does. The day before:

1. Moisture test. Plastic sheet taped down for 24 hours. A damp slab needs P-409 Moisture Vapor Primer first, and that adds a day. See how to test a concrete floor for moisture.
2. Degrease, grind, repair, vacuum twice. Grind to a 120-grit feel. Fill cracks with R-818, chips with R-343, joints with R-830. The whole routine is in how to prep a garage floor.
3. Stage everything. Because the clock runs from the moment you mix, lay out every kit, cup, roller cover and the flake boxes with the lids off before you open Part B. Put the spiked shoes on before you mix.

Temperature. This kit can go down at 50°F on the slab, which is one of its advantages over epoxy. Above 85°F the working time shrinks to almost nothing; coat early in the morning and keep the door closed against the sun. Humidity under 85%.

Full flake floor, step by step

Morning: polyurea base coat and flake

1. Plan the sections. Divide the floor into strips you can pour, spread, roll and flake in 15 minutes. For two people, half a bay per batch is right. Mark the strips with tape on the walls, not on the floor.
2. Mix half a kit. B-933 is 4:1 by volume. Measure both parts into the cups by volume, combine, and mix with the wand for 2 minutes. Do not mix the whole 2.5 gal kit at once unless two experienced people are rolling.
3. Pour immediately in a ribbon across the strip. Spread with the notched squeegee, then back-roll once to level. One 2.5 gal kit covers one bay under a flake broadcast.
4. Broadcast right away. Throw flake up and let it rain onto the wet base coat until the floor will not take any more and no base color shows. About 40 lb per 350 sq ft. Throw from outside the wet area in, and finish each strip before mixing the next.
5. Keep moving. Mix the next half kit as soon as the last one is on the floor. Pour against the wet edge of the previous strip. If a strip has started to set before the next pour reaches it, you will see a line; that is why you work small sections.
6. Edges and the apron. Cut in with the chip brush just ahead of each pour, not the whole floor at once.

Three to six hours later: scrape, vacuum, clear coat

1. Check the base coat is hard enough to walk on without the flake shifting. At 70°F that is three to four hours; cooler slabs take longer.
2. Scrape the whole floor with the scraper held nearly flat to knock off the flakes standing on edge. Vacuum all the loose flake, then vacuum again. Save the sweepings; they are good for touch-ups.
3. Mix T-444X 1:1, half a kit at a time. Pour it in a ribbon, spread with the squeegee and back-roll. Keep it between 5 and 12 mils wet. Thicker than 12 mils, polyaspartic bubbles. One 2 gal kit covers one bay over flake.
4. Work in the same strips as the morning. Keep a wet edge. Do not go back over a section that has started to set.
5. Sprinkle anti-slip grit into the wet clear near the door or on any slope if you want more grip.

Solid color floor, step by step

1. Base coat. Mix the pigment pack into Part A of the first T-444X kit until the color is uniform, then add Part B and mix for 2 minutes. Mix half a kit at a time. Pour, spread with the squeegee and back-roll in strips, keeping a wet edge. 5 to 12 mils wet.
2. Wait for it to set. Usually two to four hours at 70°F. It should be hard with no tack before the clear goes on.
3. Clear coat. Mix the clear T-444X kit the same way and roll it over the tinted coat. Same thickness. Anti-slip grit goes in this coat if you want it.

Solid color polyaspartic is thinner than a solid color epoxy floor, two coats of 5 to 12 mils against one coat at 14 mils plus a topcoat, so it shows the slab underneath more. Grind and patch well.

Cure

• Next day, 24 hours after the clear coat: walk on it.
• Two days after the clear coat at 70°F: park on it. In a cold garage allow up to 7 days.
• The polyaspartic clear is UV-stable, so a floor by an open door or window will not amber.

Mistakes to avoid on a one-day floor

• Mixing a full kit alone. It will set in the bucket or on the floor before you can spread it. Half kits.
• Letting mixed material sit. Pour it the moment the wand stops.
• Coating in the afternoon heat. Working time halves. Start at first light.
• Thick clear coat. Polyaspartic bubbles over 12 mils. It is a thin coat by design.
• Clear coat on a wet base. Wait until the flake does not move underfoot.
• Not scraping the flake. Flakes on edge poke through the clear and feel like sandpaper.
• Going back over a setting section. You get roller marks that are there for good.

Prices

Floor	One-Day, full flake	One-Day, solid color
1-car, up to 350 sq ft	$839.99 ($2.40 per sq ft)	$714.99 ($2.04 per sq ft)
2-car, up to 700 sq ft	$1,569.99 ($2.24 per sq ft)	$1,319.99 ($1.89 per sq ft)
3-car, up to 1,050 sq ft	$2,299.99 ($2.19 per sq ft)	$1,919.99 ($1.83 per sq ft)
4-car, up to 1,400 sq ft	$3,139.99 ($2.24 per sq ft)	$2,634.99 ($1.88 per sq ft)

Clear coat and tools included. Sizes up to 2,100 sq ft are on the kit page. Orders over $500 ship free. Installers charge $6 to $9 per sq ft for a polyaspartic floor; see how much it costs to epoxy a garage floor.

Polyaspartic garage floor FAQ

Is polyaspartic really a one-day floor?

Yes, for the coating. Prep still takes a day before, and the floor needs a day before you walk on it and two before you park.

Polyurea or polyaspartic, which is the base coat?

The full flake kit uses a polyurea base coat, because polyurea builds thickness and takes a flake broadcast well, under a polyaspartic clear. The solid color kit is polyaspartic for both coats. Polyaspartic is a type of polyurea; the names get used loosely.

Can I put polyaspartic over my old epoxy floor?

If the old epoxy is well bonded, yes: sand it to a dull finish, clean it, and roll T-444X over it. If the old floor is peeling anywhere, it has to come off first. See why epoxy floors peel and how to fix one.

Why is there no metallic one-day floor?

Metallic needs a slow-setting clear so the pigment has time to move. Polyaspartic sets too fast. Metallic floors use epoxy: see how to apply metallic epoxy.

Why is there no Starter one-day kit?

A polyurea base coat has to be topcoated the same day, so there is no version without the clear.

Is polyaspartic slippery?

A full flake floor has texture from the flake. A solid color polyaspartic floor is smooth and slick when wet; stir anti-slip grit into the clear coat. More in are epoxy floors slippery?

Before you mix a fast-cure kit, use your free 20-minute consultation. We will walk the sections and the batch sizes with you. Call (877) 703-7699. If we miss you, we call back within an hour.