Skip to content
Interfoam

35K High-Density Roofing Polyol

Interfoam WP-8021HD Polyol

Interfoam WP-8021HD is a 35K-class polyol for roofing & continuous panel systems. Typical values: free-rise density 20±0.5 kg/m³, compressive strength 130 kPa, k-factor 25.7 mW/m·K at 25°C.

Typical properties

Values from the WP-8021HD Polyol technical data sheet.

Free-rise density
20±0.5 kg/m³
Cream time
4–7 seconds
Gel time
25–35 seconds
Tack-free time
40–60 seconds
Compressive strength
130 kPa
K-factor (25°C)
25.7 mW/m·K
Application
Roofing & Continuous Panel Systems

About this grade

Designed for high-density system used in roof panel applications. Exhibits excellent fluidity, even foam distribution, and enhanced compressive strength with strong adhesion to steel and paper surfaces.

Roof panel illustration for WP-8021HD Polyol