Sealcoat-Asphalt Based. Driveway Sealer. Parking Lot Sealer. MasterSeal. SealMaster.

Prep Seal

Ready-to-Use Oil Spot Primer

A ready to use polymer based emulsion designed to seal oil, grease, and gasoline spots or stain prior to the application of pavement sealers over asphalt surfaces.


  • Ready-to-use acrylic-based emulsion forms barrier over oil
    and grease spots
  • Helps prevent oil and grease spots from bleeding up through
    freshly applied pavement sealer
  • Applied by roller, brush, or spray
  • Environmentally friendly, water-based formulation

Sizes Available

1 Gallon Jug, 5 Gallon Pail


Approximately 150-200 square feet per gallon depending on surface porosity.


Spec Sheet (PDF) – English | Spanish

Surface Preparation

Scrape, wire brush, or burn off excessive build-up of oil, grease, and gasoline.

Mixing Procedures

Stir thoroughly. DO NOT DILUTE.


Apply with brush, roller or spray. Allow Prep Seal to dry completely before applying pavement sealer.


Temperatures must be above 50°F both during application and for a period of at least 24 hours after application. Do not apply when rain is imminent or forecast.

Clean Up

Wash tools in water before material dries.

Unit Size Unit Weight
1 Gallon Jug 9 lbs.
5 Gallon Pail 46 lbs.