Last Updated on October 20, 2026 by Umar Farooq
Paver sealer coverage on the labels I opened runs from about 80 to 175 square feet per gallon, per coat. Unilock quotes 80 to 120 for solvent-based sealers and 100 to 150 for water-based ones. Techniseal says up to 150 for its natural-look sealer, and Alliance Gator says 175 for its wet look. Plan on the low number, because pavers are rougher than the surface the label was written for.
Sealer coverage is the one measurement in this hobby quoted for a surface you do not own. Here is what each number assumes, and how a 4 square foot test finds the real figure for your pavers.
Paver sealer coverage by label
| Source | Coverage per gallon | What it assumes |
|---|---|---|
| Unilock, solvent-based sealers | 80 to 120 sq ft | Penetrates deeper, so it covers less |
| Unilock, water-based sealers | 100 to 150 sq ft | Spreads more easily |
| Techniseal Natural Look (NS) as a sealer | up to 150 sq ft | Single coat |
| Techniseal NS as a joint stabilizer | 50 to 125 sq ft | The joints soak it up |
| Alliance Gator Wet Look | 175 sq ft | One coat only, on unsealed pavers |
| Eagle paver sealer, pavers and exposed aggregate | 100 sq ft net | Two thin coats |
The units differ. Most figures are per coat, but Eagle's is the net after two thin coats, so check which one your label means. I left out a roundup page's figures (GreenyPlace) because it mixes concrete, asphalt and paver sealers.
Why pavers drink more than the label says
Techniseal's data sheet says it plainly: coverage depends on joint width and type as well as surface porosity. Three things push your number down:
- Texture. Eagle's own table gives 100 sq ft for pavers and exposed aggregate against 200 for broom-swept concrete and 300 for smooth troweled. A rough face has more area than a flat one.
- Joints. Techniseal's NS covers 50 to 125 sq ft when it also stabilizes the joint sand, against up to 150 as a sealer.
- Thirsty pavers. Gator's sheet is for unsealed surfaces only, and Techniseal's absorption test wants water to soak in before you apply. A paver that drinks water drinks sealer (my inference, not a manufacturer figure).
No manufacturer publishes a multiplier for these effects, so I will not invent one. The test patch below gives you the real figure.
Measure a 4 sq ft patch, then scale it up
Techniseal and Alliance Gator both require a test on a hidden area of about 4 sq ft, and the warranty only covers the whole job if you do it. Use that patch to measure the sealer as well as the look.
Pour a known amount into the sprayer, treat the patch the way you will treat the patio, and see how much is left. A gallon is 128 fluid ounces, so here is my own arithmetic:
- A label of 150 sq ft per gallon means 4 sq ft should take about 3.4 fluid ounces (128 x 4 / 150).
- If the patch actually takes 5 fluid ounces, your real coverage is about 100 sq ft per gallon (128 x 4 / 5).
Scale from the patch, not from the label. Back-rolling afterwards to remove excess, which Techniseal calls critical on textured pavers, changes the figure again, so run the whole method on the test patch.
Work out the gallons for your patio
The formula is area divided by coverage, then multiplied by the number of coats. These are my calculations for one coat:
| Coverage per gallon | 200 sq ft patio | 400 sq ft patio | 600 sq ft patio |
|---|---|---|---|
| 100 sq ft | 2 gallons | 4 gallons | 6 gallons |
| 150 sq ft | 1.3 gallons | 2.7 gallons | 4 gallons |
| 175 sq ft | 1.1 gallons | 2.3 gallons | 3.4 gallons |
Double the result for a two-coat sealer. For a driveway or a patio with big textured pavers, use the 100 row. Round up to the next container, and treat the extra gallon as insurance. Running dry halfway across means stopping with a wet edge drying behind you. The buying side of that, including which sealer to choose, is in best paver sealer.
Buy by section, not by square foot
Both sheets break the work into sections: Techniseal says to work in sections of no more than 50 sq ft, and Gator says 60 sq ft sections with a foam roller to take up the excess. Unilock adds: do not stop for lunch, because pausing risks layering and gloss variations. So the real planning unit is a section, not the whole patio. A 400 sq ft patio is eight 50 sq ft sections. Pour one section's worth at a time, and if a section eats noticeably more than the last, stop and measure before the container is empty. The method is in paver sealing, and paver sealer sprayer covers the tip and tank. Reseal timing is in how often should pavers be sealed.
Buy for the low number and let the test patch correct you
For paver sealer coverage, the label gives a ceiling and your pavers decide the floor. Divide by 100 to be safe, confirm with the 4 sq ft patch, and then buy the gallons. Leftover sealer is a minor annoyance. Half a patio with a visible lap line is a lasting one.
FAQ
How many square feet does a gallon of paver sealer cover?
About 80 to 175 square feet per coat on the labels I opened: 80 to 120 for solvent-based and 100 to 150 for water-based per Unilock, up to 150 for Techniseal Natural Look, 175 for Alliance Gator Wet Look. Rough or porous pavers will come in at the low end or below.
How many gallons of paver sealer do I need for 500 square feet?
At 100 sq ft per gallon, 5 gallons per coat. At 150, about 3.3 gallons per coat. That is my own arithmetic, and a two-coat sealer needs twice as much. Confirm with a 4 sq ft test patch.
Does paver sealer coverage change with a second coat?
Yes. Eagle's figures are net after two thin coats, and its table shows 100 sq ft per gallon for pavers on that basis. Check whether your label's number is per coat or total before you buy.
Is it better to spray or roll sealer for coverage?
Both Techniseal and Gator describe spraying a section and then rolling off the excess. Run the same method on your test patch, so the measurement matches the job.
