Types of Seal Coating Materials

Big Easy Asphalt is a leading provider of asphalt solutions, we understand the importance of selecting the right material for your project. In this article, we will provide an overview of two commonly used seal coating materials: coal tar and asphalt emulsion. We will explore their pros and cons, as well as offer insights into selecting the most suitable material based on climate and specific project requirements.

Coal Tar Seal Coating

Coal tar seal coating is a popular choice for many pavement projects. It is derived from the distillation of coal, resulting in a dark, highly viscous liquid. Here are some key points to consider:

Pros:

• Durability: Coal tar seal coating offers exceptional durability, providing excellent resistance to traffic, UV rays, and chemicals.
• Weather Resistance: It withstands extreme weather conditions, including heavy rain, snow, and heat, making it suitable for areas with harsh climates.
• Fuel Resistance: Coal tar provides excellent resistance to gasoline, oil, and other automotive fluids, making it an ideal choice for parking lots and driveways.
• Dark Appearance: It produces a deep, rich black color, enhancing the overall aesthetic appeal of the pavement.

Cons:

• Curing Time: Coal tar seal coating requires a longer curing time compared to other materials, typically ranging from 24 to 48 hours.
• Environmental Concerns: Coal tar contains polycyclic aromatic hydrocarbons (PAHs), which are considered potential environmental pollutants. Proper handling and disposal procedures are necessary to minimize any negative impact.

Asphalt Emulsion Seal Coating

Asphalt emulsion seal coating is another widely used material in pavement maintenance. It is made by combining asphalt binder with water and an emulsifying agent. Consider the following aspects:

Pros:

• Quick Drying Time: Asphalt emulsion typically dries faster than coal tar, allowing for shorter project completion times.
• Easy Application: It can be applied using various methods, such as spray, brush, or squeegee, making it a versatile choice for different project requirements.
• Flexibility: Asphalt emulsion seal coating provides good flexibility, allowing the pavement to withstand temperature changes and minor surface movements.
• Environmentally Friendly: Unlike coal tar, asphalt emulsion is considered more environmentally friendly, as it contains lower levels of harmful substances.

Cons:

• Lower Resistance to Chemicals: Asphalt emulsion is more susceptible to damage from oil, gasoline, and other chemicals compared to coal tar.
• Moderate Weather Resistance: It performs well in moderate climates but may not withstand severe weather conditions as effectively as coal tar.

Selection Criteria based on Climate and Project Requirements

Selecting the most suitable seal coating material for your project depends on various factors. Consider the following criteria:

• Climate: In regions with extreme temperatures and frequent freeze-thaw cycles, coal tar seal coating is often preferred due to its superior weather resistance. In areas with milder climates, asphalt emulsion may be a viable choice.
• Traffic Load: High-traffic areas, such as commercial parking lots or busy roadways, require a durable seal coating material like coal tar, which offers excellent resistance to heavy vehicles and frequent traffic.
• Project Timeline: If time is of the essence and quick drying is essential, asphalt emulsion seal coating might be the preferred option due to its faster curing time.

Environmental Considerations: If minimizing environmental impact is a priority, asphalt emulsion seal coating is a more eco-friendly choice due to its lower levels of harmful substances.

Types of Seal Coating Materials by Big Easy Asphalt

We hope this guide has provided valuable insights into the different types of seal coating materials available.

At Big Easy Asphalt, we understand the importance of making informed decisions when it comes to pavement maintenance. By considering factors such as climate, project requirements, and the pros and cons of each material, you can ensure long-lasting and aesthetically pleasing results.

By choosing Big Easy Asphalt, you’re choosing quality, expertise, and exceptional service. Contact us now for all your seal coating needs and experience the difference that our knowledge and commitment can make for your pavement.