What is the viscosity range for Asphalt Primer Type I?

Asphalt Primer Type I is specifically formulated for use in built-up roofing systems and serves as a crucial component in the bonding process of asphalt layers. The viscosity of an asphalt primer is an important characteristic as it affects how well the primer can be applied and how it penetrates the substrate.

The correct range for the viscosity of Asphalt Primer Type I is 25 to 125 seconds, which indicates that it flows at a suitable rate for effective application. This viscosity is ideal for promoting good adhesion between the materials, ensuring that the primer adequately prepares the surface for further roofing layers. At this viscosity, the primer can easily spread while still providing the necessary thickness to create a proper bond, making it an optimal choice compared to others that may have higher or lower viscosity ranges.

In summary, the viscosity range of 25 to 125 seconds allows Asphalt Primer Type I to perform effectively, ensuring that it meets industry standards for bonding in built-up roofing applications.