Bitumen Crack Filler

bitumen crack filler

Bitumen Crack Filler: Everything You Need to Know


 Bitumen crack filler is a vital component in maintaining asphalt surfaces, whether it’s a driveway, parking lot, or road. Cracks in asphalt can lead to bigger issues like water penetration, potholes, and structural damage if left untreated.

Understanding the importance of using quality bitumen crack filler and knowing how to apply it properly can significantly extend the lifespan of asphalt surfaces.

In this comprehensive guide, we’ll delve into everything you need to know about bitumen crack filler, from its composition to application techniques.

What is Bitumen Crack Filler?

Bitumen crack filler, also known as asphalt crack filler or sealant, is a flexible, rubberized compound designed to fill and seal cracks in asphalt surfaces. It’s typically made from a blend of bitumen, polymers, and other additives to ensure durability and flexibility.

Sealan crack filler comes in various forms, including pourable liquid, hot-applied molten material, and pre-formed solid sticks.

Why is Bitumen Crack Filler Important?


Bitumen Crack filer

Cracks in asphalt surfaces can allow water to penetrate beneath the surface, leading to erosion of the subbase and further deterioration of the pavement structure. This can result in potholes, rutting, and costly repairs if not addressed promptly.

Asphalt crack filler acts as a barrier, preventing water intrusion and protecting the underlying layers of the pavement. By filling cracks early on, property owners can prevent extensive damage and prolong the life of their asphalt surfaces.

Types of Bitumen Crack Fillers:

Pourable Liquid Fillers: These are suitable for filling narrow cracks and are typically applied using a pour pot or crack sealing machine. The liquid filler flows into the cracks, adhering to the asphalt surface and forming a waterproof seal upon curing.

Hot-Applied Molten Fillers: Ideal for larger cracks and potholes, hot-applied fillers are heated to high temperatures before application. They provide superior bonding and are highly resistant to deformation and traffic loads.

Pre-Formed Solid Sticks:

These are convenient for DIY repairs and small-scale projects. Solid sticks can be melted using a torch or heat gun and then applied directly into the cracks.

How to Apply Bitumen Crack Filler:

Clean the Surface: Remove any debris, vegetation, and loose material from the cracks using a wire brush, air compressor, or blower.

Prepare the Filler: Follow the manufacturer’s instructions for heating or preparing the bitumen crack filler.

Fill the Cracks: Pour the liquid filler or apply the molten material into the cracks, ensuring they are completely filled.

Level the Surface: Use a trowel or squeegee to smooth the filler and ensure it is level with the surrounding asphalt.

Allow Curing: Allow the filler to cure according to the manufacturer’s recommendations before reopening the surface to traffic.

Tips for Success:

Choose the right type of bitumen crack filler based on the size and severity of the cracks.

Ensure proper surface preparation to promote adhesion and longevity of the filler.

Apply filler on a dry, sunny day when temperatures are above 50°F (10°C) for optimal curing.

Regularly inspect and maintain asphalt surfaces to identify and repair cracks before they worsen.


Bitumen crack filler plays a crucial role in preserving the integrity of asphalt surfaces and preventing costly repairs. By understanding the different types of fillers available and following proper application techniques, property owners can effectively maintain their asphalt driveways, parking lots, and roads for years to come. Investing in quality bitumen crack filler and conducting regular maintenance can save both time and money in the long run, ensuring safe and durable pavement surfaces.