How is Asphalt Sealcoating Made?
Asphalt sealcoating is typically made by combining refined coal tar pitch or asphalt-based sealcoat emulsion with various additives and water. The specific composition may vary depending on the manufacturer and the desired properties of the sealcoating product. Here’s a general overview of the process:
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Raw materials: The main components of asphalt sealcoating are refined coal tar pitch or asphalt-based sealcoat emulsion, which serve as the base. Refined coal tar pitch is derived from coal, while asphalt-based sealcoat emulsion is made from asphalt cement.
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Additives: Various additives are incorporated into the sealcoating mixture to enhance its performance and properties. These additives may include fillers, polymers, latex, sand, mineral fibers, or other proprietary ingredients. The additives can improve the durability, flexibility, adhesion, color, and resistance to UV rays and chemicals.
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Mixing: The sealcoating ingredients are combined in a specialized mixing tank or system. The process involves precise measurement and mixing to achieve a homogeneous blend. The mixing equipment ensures that the ingredients are thoroughly mixed to create a consistent product.
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Dilution: Water is added to the mixture to achieve the desired viscosity and application consistency. The amount of water added depends on factors such as weather conditions, desired thickness of the coating, and the manufacturer’s recommendations.
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Quality control: Once the sealcoating mixture is prepared, it undergoes quality control testing to ensure it meets the desired specifications. This may include checks for viscosity, solids content, pH levels, and other performance criteria.
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Packaging and distribution: The sealcoating is packaged into containers, such as drums, totes, or bulk tanks, depending on the intended market and customer requirements. It is then distributed to suppliers, contractors, or directly to end-users.
It’s important to note that the specific manufacturing process and ingredients can vary among manufacturers and regions. Additionally, regulations and standards may dictate the permissible composition and use of sealcoating products in different areas.
