What is the viscosity range for Asphalt Primer Type II?

The viscosity range for Asphalt Primer Type II is indeed specified to fall between 120 to 800 seconds. This viscosity range is crucial for ensuring that the primer can be easily applied and effectively penetrates the substrate to promote adhesion between the roofing materials.

Understanding viscosity in this context is important for contractors and materials specialists because it influences how well the primer can spread on various surfaces. A primer with a viscosity within this range ensures that it is fluid enough to apply evenly while still being thick enough to adhere effectively, thus promoting good bonding with subsequent layers of roofing material.

This specific viscosity range is often set to ensure compliance with industry standards, which are paramount for achieving long-lasting and water-resistant roofing systems. Adjusting the viscosity can change the application properties of the primer, which is why this specific range is provided in the guidelines for its use.