Bituminous coating is flexible and protective which is also called asphalt coating. It is a very good protective coating and waterproofing agent, especially on surfaces of concrete foundations. Bituminous coating is made of bitumen based material and it is not suitable for exposure to sunlight. It becomes very brittle and fragile due to long exposure to sunlight.


A bituminous coating is a type of coating used to build a vapor-proof and flexible protective coat in accordance with its formulation and polymerization grade. A bituminous coating’s flexibility and protection against vapor and water can be influenced by the polymer grade as well as reinforcement of fiber.

The most common applications of a bituminous coating include areas that are beneath screed wet. It is an excellent protective coating and waterproofing agent, especially on surfaces such as concrete foundations.

Bituminous coating is also known as asphalt coating.


Bituminous Coatings are used to form a flexible and vapor proof protective coating, depending on the formulation and grade of polymerization. With the grade of Polymer or Fibre Reinforcement used the grade of flexibility, behavior against water and vapor transmission, etc. can be influenced. Typical application areas are under screed wet-are waterproofing, protective coating on concrete foundations, etc.


A bituminous coating is regarded as one of the least expensive ways to provide cathodic protection. It is also the least complex coating process, making it suitable for casing pipes like in road bore.

Bituminous coatings are mainly composed of hydrocarbon molecules. Such molecules are elongated, making movement difficult. Therefore, bitumen is solid especially at ambient settings. However, it flows very slowly and is very viscous.

Almost all bituminous coatings are ready to use and free from solvent. These are chemical- and UV-resistant, making them reliable protective coatings against wear and corrosion. It can be applied through various methods using a roller, brush or sprayer.


Both the term asphalt and bitumen can be used interchangeably but in practice, the term asphalt usually refers to asphalt concrete, which is a mixture of asphalt (or bitumen) with other construction aggregate.

It is a highly viscous liquid or semi-solid form of petroleum that could be found in natural deposits or as a refined product.

What makes bituminous paints highly effective as a sealant or to prevent water ingress is the fact that they’re naturally insoluble in water. This makes them a particularly effective type of barrier coating (coatings that are designed to prevent corrosion by repelling the elements that could cause corrosion which in this case is water) by preventing moisture from making direct contact with the substrate. Bituminous paints also typically have strong adhesion properties with almost any material thereby increasing their versatility.