High-frequency precision for advanced antenna applications

ROHACELL® 31 HF

At 32 kg/m³, ROHACELL® 31 HF is the lightest of the 3 grades in the ROHACELL® HF range.

ROHACELL® HF is a closed-cell rigid foam based on polymethacrylimide (PMI) chemistry completely free of CFC’s. With its extremely low dielectric constants and particularly favorable transmission properties at high frequencies, ROHACELL® HF is ideal for use in antenna applications.

Mechanical properties

Density
32 kg/m³
2.00 lbs/ft³
Compressive Strength
0.3 MPa
44 psi
Tensile Strength
1 MPa
145 psi
Shear Strength
0.4 MPa
58 psi
Elastic Modulus
—
Shear Modulus
13 MPa
1,885 psi
Strain at Break
—

Compare ROHACELL® HF grades

Grades

Properties

Density

32kg/m³
2.00lbs/ft³
52kg/m³
3.25lbs/ft³
75kg/m³
4.68lbs/ft³

Compressive Strength

0.3MPa
44psi
0.7MPa
102psi
1.5MPa
218psi

Tensile Strength

1MPa
145psi
1.9MPa
276psi
2.8MPa
406psi

Shear Strength

0.4MPa
58psi
0.8MPa
116psi
1.3MPa
189psi

Elastic Modulus

—
—
—
—
—
—

Shear Modulus

13MPa
1,885psi
19MPa
2,756psi
29MPa
4,206psi

Strain at Break

—
4%
4.5%
All ROHACELL® HF grades

Experts in performance foams