Slurry seal contains asphalt emulsion or paving-grade asphalt cement as well as rubber, latex, and polymers. Slurry seal coats include microscopic particles of fillers such as sand and aggregate that help protect the surface of asphalt paving from the rigours of changing weather. The mixture has a viscosity similar to that of very heavy molasses. Use the proper tools for this straightforward job and you can apply the slurry seal yourself.
- Skill level:
Things you need
- Push broom
- Water hose
- Heavy-duty scrub brush
- Concentrated washing up liquid
- Stir stick
- Disposable paint roller with long handle
Apply slurry seal on a warm day. Temperatures above 12.8 degrees C (55 degrees Fahrenheit) to ensure optimum spreading.
Sweep the surface of the asphalt with your push broom. Remove as much dirt, dust and debris as possible. Sweeping away loose surface materials helps the slurry adhere to the pavement.
Spray the surface of the asphalt with water. Water washes away dust particles that remain after sweeping and ensures a good sealant bond.
Scrub stained areas and surface spots with a stiff brush and washing up liquid. Rinse the cleaned areas with water.
Allow the asphalt to dry thoroughly.
Open the container of sealer and stir the contents with a clean stick. Repeat stirring throughout the sealing process to keep the slurry seal from settling.
Pour the slurry seal onto the asphalt. Start in a corner and pour out enough product to cover a 1.5 by 1.5 m (5 by 5 foot) section.
Expedite the process of spreading the slurry. Use a paint roller with a long handle and spread a thin coat of sealer on the surface of the asphalt. Continue spreading to cover the entire surface.
Allow the asphalt surface to dry for at least 48 hours. It can accept traffic after that period.
Tips and warnings
- Repair cracks and holes in asphalt before applying a slurry seal.
- Before you open a container of seal coat, turn it upside down and let the contents resettle.
- Ready-to-use asphalt seal coat products are available at most home centres.
- Wear a face mask when applying a slurry seal if you have breathing problems.
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