Sealcoating: How Durable is That Protective Layer, Really?

Sealcoat being sprayed on

Sealcoating: How Durable is That Protective Layer, Really?

Sealcoating, that dark, glossy layer applied to asphalt, promises to extend the life of your parking lot or driveway. But how durable is it, really? Does it live up to the hype? Let's delve into the factors that influence sealcoat durability and what you can expect from this asphalt protector.

Understanding Sealcoat's Role:

Before we assess durability, it's crucial to understand sealcoat's function. It's not a magic shield that makes asphalt indestructible. Instead, it acts as a protective barrier against:

• Oxidation: The sun's UV rays cause asphalt to dry out and become brittle. Sealcoat slows this process.

• Water Damage: Water seeps into asphalt, causing cracks and potholes, especially during freeze-thaw cycles. Sealcoat repels water.

• Chemical Spills: Oil, gasoline, and other chemicals can break down asphalt. Sealcoat provides a protective layer.

• Wear and Tear: Heavy traffic and scraping can wear down asphalt. Sealcoat adds a layer of resistance.

Factors Affecting Sealcoat Durability:

The longevity of your sealcoat depends on several factors:

• Quality of Materials:

  • High-quality sealants, with proper additives and binders, will last longer than cheaper, diluted products.

  • The type of aggregate mixed into the sealant also influences durability.

• Application Quality:

  • Proper surface preparation is crucial. The asphalt must be clean, dry, and free of debris.

  • The sealant must be applied evenly and at the correct thickness.

  • Experienced professionals are key to a lasting application.

• Traffic Volume:

  • High-traffic areas, like busy parking lots, will experience faster wear and tear.

  • Residential driveways typically last longer.

• Climate:

  • Extreme temperatures, heavy rainfall, and freeze-thaw cycles can degrade sealcoat.

  • Areas with harsh winters may require more frequent sealcoating.

• Maintenance:

  • Regular cleaning and prompt crack repairs can extend the life of sealcoat.

  • Avoiding harsh chemicals and heavy scraping is also important.

• Type of Sealcoating:

  • Coal tar based sealers are known for their durability, but have environmental concerns. Asphalt emulsion sealers are a more environmentally friendly alternative, but can vary in durability.

Typical Sealcoat Lifespan:

Generally, a properly applied, high-quality sealcoat can last anywhere from 2 to 5 years. However, this is just an estimate. Under ideal conditions and with proper maintenance, it might last longer. Conversely, in harsh conditions or with poor application, it might wear out sooner.

Signs of Sealcoat Wear:

• Fading or graying appearance.

• Visible wear patterns from tires.

• Cracks or peeling.

• Loss of aggregate.

The Bottom Line:

Sealcoating is a valuable investment in asphalt maintenance, but its durability is not absolute. By choosing a reputable professional, using high-quality materials, and performing regular maintenance, you can maximize the lifespan of your sealcoat and protect your asphalt investment. Remember that while durable, sealcoating will eventually need to be reapplied.

Whether you go with us, B2B Sealcoating or not, leave the sealcoating to the professionals. Store bought sealer does not last and is a cheaply made, watered down product. Give us a call at 715-760-3112 or email us at info@b2bsealcoat.com and we would be glad to help you out.