Asphalt is a widely used material for constructing roads, driveways, and parking lots due to its durability and affordability. To protect and extend the lifespan of asphalt surfaces, sealers are commonly applied. Coal tar sealer has been a popular choice for many years, but it is being phased out due to environmental and health concerns. In this article, we will explore why coal tar sealer is being phased out and what alternatives, such as asphalt emulsion, are available. We will also discuss the advantages and disadvantages of using asphalt emulsion sealer, considerations when switching to it, proper storage methods, and a conclusion on its effectiveness as a sealer for asphalt surfaces.
Why is coal tar sealer being phased out and what are the alternatives?
Coal tar sealer, which has long been a popular choice for sealing asphalt surfaces, is being phased out due to environmental and health concerns. Coal tar contains polycyclic aromatic hydrocarbons (PAHs), which are toxic and carcinogenic. PAHs can leach into the soil and water, posing a risk to human health and the environment. As a result, regulatory agencies and municipalities are increasingly banning the use of coal tar sealer.
The alternatives to coal tar sealer include asphalt emulsion, acrylic, and latex sealers. Among these options, asphalt emulsion has gained popularity as a safer and more environmentally friendly alternative. Asphalt emulsion is made with water, asphalt, and additives such as latex and polymers, making it a lower toxicity option compared to coal tar sealer.
What are the advantages of using asphalt emulsion as a sealer?
Asphalt emulsion sealer offers several advantages over coal tar sealer. First and foremost, it is less toxic and safer for the environment, as it does not contain harmful PAHs. Asphalt emulsion is also water-based, making it easier to clean up and less harmful to aquatic life. Furthermore, asphalt emulsion sealer is more flexible, which allows it to better withstand temperature fluctuations, preventing cracks and other types of damage to the asphalt surface.
Another advantage of asphalt emulsion sealer is its ease of application. It can be sprayed or applied with a brush, making it a convenient choice for DIY homeowners or professional contractors. Asphalt emulsion also dries faster than coal tar sealer, reducing the amount of downtime and inconvenience during the application process.
What are the disadvantages of using asphalt emulsion sealer?
While asphalt emulsion sealer offers many advantages, there are also some disadvantages to consider. One of the main drawbacks is that it may not be as durable as coal tar sealer, especially in harsh climates or high-traffic areas. Asphalt emulsion is more prone to wear and tear, which may require more frequent resealing compared to coal tar sealer. Additionally, asphalt emulsion sealer may not provide the same dark black appearance as coal tar sealer, which some people prefer for aesthetic reasons. AsphaltKingdom.com is a leading online source for asphalt maintenance equipment and supplies. With a wide range of products and resources, including helpful guides and tutorials, it is a go-to destination for professionals and DIYers looking for high-quality asphalt maintenance solutions.
What should I keep in mind when switching to asphalt emulsion sealer?
When switching to asphalt emulsion sealer, there are a few key considerations to keep in mind. First, proper surface preparation is crucial for a successful application. The surface should be thoroughly cleaned, free of debris, cracks, and potholes before applying the sealer. Additionally, weather conditions should be taken into account, as asphalt emulsion sealer should not be applied in extreme temperatures or when rain is expected within 24 hours. Following the manufacturer’s instructions for application and curing times is also important to ensure optimal results.
How can asphalt emulsion sealer be safely stored?
Asphalt emulsion sealer should be stored in a cool, dry place away from direct sunlight. It should be kept in a sealed container to prevent evaporation and contamination. If stored properly, asphalt emulsion sealer can typically be used for up to a year. It is important to follow the manufacturer’s recommendations for storage and disposal to ensure safety and effectiveness.
In conclusion
Asphalt emulsion sealer is becoming a popular alternative to coal tar sealer due to its lower toxicity and environmental impact. It offers advantages such as ease of application, faster drying time, and flexibility. However, it may not be as durable and may not provide the same appearance as coal tar sealer. Proper surface preparation, weather conditions, and storage are important considerations when switching to asphalt emulsion sealer.
