Protect and extend the life of your asphalt surfaces across San Jose with our professional sealcoating applications.
Get Your Free EstimateAsphalt sealcoating is the application of a protective liquid layer, typically a refined coal tar or asphalt emulsion, over existing asphalt pavement. This service includes thorough cleaning of the surface, crack filling, and then the precise application of one or two coats of high-quality sealer. The goal is to shield the asphalt binder from environmental damage, restore its rich black appearance, and prolong its structural integrity.
Our process begins with a detailed inspection of your San Jose property's asphalt. We identify areas needing repair, such as cracks or potholes, which must be addressed before sealing. Surface preparation is critical; we use power blowers, brooms, and wire brushes to remove all loose debris, dirt, and oil spots. This ensures proper adhesion of the sealcoat, preventing premature peeling or flaking, which is common with inadequate preparation.
For San Jose's climate, sealcoating is particularly important. The intense summer sun and occasional heavy rains can accelerate asphalt deterioration. UV radiation causes oxidation, which makes the pavement brittle and gray, while water infiltration through cracks leads to sub-base erosion and eventual potholes. A properly applied sealcoat acts as a barrier against these elements, preserving the asphalt's flexibility and preventing costly repairs down the line.
After application, the sealcoat needs adequate time to cure. We advise keeping traffic off the sealed area for at least 24-48 hours, depending on temperature and humidity. This curing period allows the sealer to fully harden and bond with the asphalt, maximizing its protective qualities. We use commercial-grade sealers formulated for durability and resistance to traffic and weather conditions.
Asphalt sealcoating significantly extends the lifespan of your pavement in San Jose by creating a robust barrier against environmental stressors. The intense California sun, with its high UV index, causes the asphalt binder to oxidize, leading to a loss of essential oils and flexibility. This oxidation manifests as graying, brittleness, and an increased propensity for cracking, which means your pavement becomes more susceptible to damage.
Furthermore, San Jose experiences periods of heavy rainfall, especially during the winter months. Unsealed cracks allow water to penetrate the asphalt surface and reach the sub-base layer. This water compromises the structural integrity of the base material, leading to softening, erosion, and ultimately, the formation of potholes and alligator cracking. A properly applied sealcoat fills these hairline cracks and creates a waterproof surface, preventing water infiltration.
Beyond weather protection, sealcoating also guards against chemical spills from vehicles, such as oil, gasoline, and antifreeze. These substances can dissolve the asphalt binder, creating soft spots and premature deterioration. The protective layer of sealcoat resists these chemicals, keeping your pavement looking better and performing longer, which translates to fewer repair costs over its service life.
We thoroughly clean the asphalt surface using power blowers, wire brushes, and brooms to remove all loose debris, dirt, and vegetation. Any oil or grease stains are pre-treated and scrubbed to ensure optimal adhesion of the sealcoat.
All existing cracks over 1/8 inch wide are cleaned and filled with a hot-applied rubberized crack filler. This flexible material expands and contracts with temperature changes, preventing water penetration and further crack propagation.
We apply one to two coats of commercial-grade asphalt emulsion or refined coal tar sealer using specialized spray equipment or squeegees. This ensures even coverage and a consistent finish, maximizing protection and aesthetic appeal.
After application, we barricade the sealed area and advise a minimum 24-48 hour curing period before allowing traffic. This allows the sealcoat to fully harden and bond, providing maximum durability and longevity.
Charis Paving Co provides expert asphalt sealcoating services across San Jose, CA, and its neighboring communities. From the residential streets of Willow Glen to the commercial properties near the Mineta San Jose International Airport, we understand the specific needs of local pavements.
Our service area extends throughout the Santa Clara Valley, including cities like Santa Clara, Campbell, Cupertino, and Milpitas. We are familiar with the varying traffic patterns and environmental factors unique to each district, ensuring our sealcoating solutions are precisely adapted for optimal performance and durability.
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