Bitumen primer is a liquid coating that is applied to surfaces before the application of bitumen products, such as roofing felts, waterproofing membranes, and adhesives. Bitumen primer serves two main purposes:

It seals the surface and prevents it from absorbing bitumen, which improves the adhesion of the bitumen product.
It creates a uniform surface for the bitumen product to adhere to.
Bitumen primer is typically made from a mixture of bitumen, solvents, and additives. It is applied to the surface using a brush, roller, or spray gun. Bitumen primer should be applied to a clean and dry surface. It is important to allow the bitumen primer to dry completely before applying the bitumen product.

Bitumen primer is used in a variety of applications, including:

Roofing: Bitumen primer is used to prepare roofs for the application of roofing felts and waterproofing membranes.
Waterproofing: Bitumen primer is used to prepare foundations, walls, and other surfaces for the application of waterproofing membranes.
Adhesives: Bitumen primer is used to prepare surfaces for the application of bitumen adhesives.
Bitumen primer is an important part of many bitumen applications. It helps to ensure that the bitumen product adheres properly to the surface and creates a long-lasting and watertight seal.

Here are some of the benefits of using bitumen primer:

Improved adhesion: Bitumen primer helps to improve the adhesion of bitumen products to surfaces. This is important for creating a long-lasting and watertight seal.
Reduced bitumen absorption: Bitumen primer seals the surface and prevents it from absorbing bitumen. This reduces the amount of bitumen required and helps to save money.
Uniform surface: Bitumen primer creates a uniform surface for the bitumen product to adhere to. This helps to ensure that the bitumen product is applied evenly and consistently.
Bitumen primer is a relatively inexpensive and easy-to-use product. It is an important part of many bitumen applications and can help to ensure a long-lasting and watertight seal.