Sealcoating your driveway is an essential step in protecting it from harsh weather, oil spills, and other damaging elements. However, selecting the right asphalt driveway sealer can be tricky, as there are several options available. Here are some key tips to help you choose the best sealer for your driveway.
1. Understand the Different Types of Sealers
There are three primary types of asphalt driveway sealers: coal tar, asphalt emulsion, and petroleum resin. Each has its own set of advantages and considerations.
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Coal Tar Emulsion
Coal tar sealers are the most durable, providing excellent protection against water, oil, gasoline, and UV rays. They are the toughest option on the market. However, coal tar sealers release volatile organic compounds (VOCs), which can be harmful to the environment and create a strong odor during application. Some areas have banned coal tar sealers due to these VOCs. -
Asphalt Emulsion
Asphalt emulsion sealers are made from asphalt base resins and additives. These sealers are effective at preventing water damage but are less efficient at blocking oil, gasoline, and UV rays. They tend to wear down more quickly and require reapplication more often. Asphalt emulsion sealers also release fewer VOCs, making them a more environmentally friendly option. -
Petroleum Resin
Petroleum resin sealers offer the best of both worlds: they combine the durability of coal tar sealers with the low VOC levels of asphalt emulsion. These sealers are more expensive but are ideal for those seeking strong protection without the strong odor and environmental concerns associated with coal tar.
2. Choose the Right Grade
The grade of the sealer you choose will determine how long it lasts and how well it performs. Consumer-grade sealers, which are often found in home improvement stores, are typically less durable and provide limited protection. They are best suited for small projects or areas with minimal traffic.
For better performance and longevity, choose commercial-grade sealers. These sealers contain more effective ingredients and fewer fillers, offering superior protection and durability against the elements.
3. Consider the Application Method
Depending on the type of sealer you choose, the application method may vary. Coal tar and asphalt emulsion sealers typically require application by brush, squeegee, or spray, while petroleum resin sealers may require specialized equipment. Ensure you have the right tools for the job, such as brushes, squeegees, or spray hoses.
For professional results, investing in the proper equipment is crucial.
4. Check for Local Regulations
Before purchasing a sealer, make sure to check if there are any local regulations or bans on certain types of sealers, particularly coal tar. In areas where coal tar is restricted, you’ll need to opt for asphalt emulsion or petroleum resin sealers.