How to Clean an Asphalt Driveway

This simple method of cleaning asphalt will take care of most spills and stains, including difficult automotive messes.

• Trisodium Phosphate (TSP)
• Water
• Bucket
• Long handled push broom with stiff bristles
• Bleach
• Eye protection
• Rubber gloves
• Hose connected to running water

1. Begin by protecting yourself with protective eye-wear and rubber gloves.
2. Read the labels carefully and observe all warnings and precautions.
3. Mix a solution of TSP and water in the bucket. Check the label for the appropriate ratio to use for your particular job.
4. Pour enough of the TSP solution on the stain to cover it. If the stain is old or severe, you may want to allow the solution a few minutes to soak into the stain and loosen it before scrubbing.
5. Scrub the area vigorously with the stiff-bristled broom.
6. If the spot doesn’t come off, scrub it again with full strength household bleach after rinsing the area well.
7. Rinse thoroughly with a hose.
8. If any stains remain, but have lightened, repeat the above steps until they are removed.

• If this home cleaning solution doesn’t work, try a commercial asphalt cleaning product. Make sure to select one made for asphalt, as some concrete cleaners can damage asphalt. These products can be found at hardware and home improvement stores.
• Wear eye protection and rubber gloves when working with cleaning agents.
• Watch the runoff water if there are nearby shrubs and plants. The TSP and bleach can be harmful to these and cause dead, patchy areas.