What kind of sealer do most contractors use?

Asphalt emulsion is the most common residential sealer in 2026 because coal tar is restricted in a growing number of jurisdictions. Commercial parking lots often use coal tar where it is still allowed because it lasts 1 to 2 years longer per application.

Is one coat or two coats better?

Two coats. Almost always. One coat covers but does not protect. The second coat fills micro-pores and roughly doubles the lifespan for about 1.5x the material cost. Any reputable contractor includes two coats as standard.

Can I mix sealer brands?

Not on the same job. Chemistries vary and incompatible sealers can flake, streak, or fail to cure. Stick with one product per application.

How soon can I drive on a sealed driveway?

Standard cure sealers need 24 hours for foot traffic and 48 hours before driving. Fast-cure formulas can be driven on in 1 to 2 hours, which is why commercial lots prefer them.

Asphalt Paving Guide / Driveway Sealer Types

Asphalt driveway sealer types compared

There are 4 sealer chemistries in common use. They look almost identical on day one. They look very different in year three.

Coal tar emulsion

Lifespan: 3 to 5 years

Pros: Most durable, best UV and chemical resistance, deepest black finish

Cons: Banned or restricted in some states and municipalities due to PAH concerns. Strong odor during cure.

Asphalt emulsion

Lifespan: 2 to 3 years

Pros: Environmentally friendlier, allowed everywhere, low odor

Cons: Less durable than coal tar. Fades to gray faster. Needs more frequent reapplication.

Acrylic polymer

Lifespan: 5 to 7 years

Pros: Longest lasting, lowest VOC, available in colors

Cons: 2 to 3x the price per gallon. Overkill for most residential driveways.

Fast-dry / fast-cure

Lifespan: 2 to 3 years

Pros: Drives on in 1 to 2 hours instead of 24. Great for commercial lots that cannot close.

Cons: More expensive. Slightly less durable than standard cure.

Frequently asked

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