Estimate sealer quantity, coats, and cost for asphalt or concrete.
Driveway Sealer Types
Choosing the right sealer protects your driveway investment and extends its lifespan by years.
| Sealer Type | Durability | Coverage | Best For |
|---|---|---|---|
| Coal Tar | 3-5 years | 250-350 sq ft/gal | Max protection |
| Asphalt Emulsion | 2-3 years | 300-400 sq ft/gal | Eco-friendly option |
| Acrylic | 2-4 years | 200-300 sq ft/gal | UV protection |
| Penetrating (concrete) | 3-5 years | 200-300 sq ft/gal | Concrete driveways |
Frequently Asked Questions
How much driveway sealer do I need?
One 5-gallon bucket of sealer covers approximately 250-400 sq ft per coat. A typical two-car driveway (640 sq ft) needs 2-3 buckets for two coats. Always apply two coats for best protection.
How often should I seal my driveway?
Asphalt driveways should be sealed every 2-3 years. New driveways should wait 6-12 months before the first seal coat. Concrete driveways benefit from sealing every 2-4 years.
What is the best driveway sealer?
Coal tar sealers are most durable but have environmental concerns. Asphalt emulsion is more eco-friendly. Acrylic sealers offer good UV protection. For concrete, penetrating silane/siloxane sealers work best.
How long does driveway sealer last?
Quality seal coating lasts 2-3 years. Factors affecting longevity include traffic volume, sun exposure, climate, and sealer quality. Two coats last significantly longer than one coat.
What temperature should it be to seal a driveway?
Apply sealer when temperatures are between 50-85°F with no rain expected for 24-48 hours. The surface temperature should be above 50°F. Late spring through early fall is the ideal sealing season.
Can I seal my driveway myself?
Yes, DIY seal coating saves 50-70% versus professional application. You’ll need: sealer, squeegee applicator, edging brush, crack filler, and blower. Clean the surface thoroughly first.
How long before I can drive on sealed driveway?
Most sealers require 24-48 hours of cure time before vehicle traffic. Walk-on time is usually 4-8 hours. Cooler temperatures and humidity extend cure times. Check the specific product instructions.
Should I fill cracks before sealing?
Yes, always fill cracks before seal coating. Use rubberized crack filler for cracks up to 1/2 inch wide. Let crack filler cure 24 hours before applying sealer. Unfilled cracks will telegraph through the sealer.
How much does professional driveway sealing cost?
Professional seal coating costs $0.15-0.30 per sq ft or $90-200 for a standard two-car driveway. This includes cleaning, crack filling, and two coats. DIY costs are typically $50-80 in materials.
Is seal coating asphalt worth it?
Yes, seal coating extends driveway life by 5-10 years, protects against UV damage, prevents water penetration, and restores the dark appearance. The cost of sealing every 2-3 years is far less than repaving.