Rigid Materials
Cotton Phenolic Laminates, Rolled/Molded Rods & Tubes
Cotton phenolic laminates are high-quality industrial grade materials made from cotton fabric impregnated with phenolic resin. These laminates offer excellent mechanical strength, electrical insulation properties, and durability.
It is stronger than paper-based grades, with a finer surface and better machinability. It is used for long-lasting gears, pinions, bearings, bushings and many structural parts, where it is quieter and more economical than metal.
| Item | 1 | 2 | 3 | 4 | 5 | |
|---|---|---|---|---|---|---|
| DIN 7735 | HGW 2081 | HGW 2082 | HGW 2082.5 | HGW 2083 | HGW 2083.5 | |
| ISO R 1642 | - | PF CC1 | PF CC2 | PF CC3 | - | |
| GB BS 5102/2572 | - | F3 | - | - | - | |
| USA NEMA L1 | C | C | CE | L | - | |
| F NF | - | C | - | - | - | |
| CH VSM | - | S-PF-CC1 | - | S-PF-CC3 | - | |
| DIN 53479 | g/cm3 | ≈1.35 | ≈1.35 | ≈1.35 | ≈1.35 | ≈1.35 |
| DIN 53452 | MPa | 100 | 130 | 115 | 150 | 130 |
| DIN 53453 | kJ/m2 | 18 | 30 | 20 | 35 | 30 |
| DIN 53453 | kJ/m2 | 15 | 15 | 20 | 15 | 30 |
| 10 | 10 | 15 | 12 | 12 | ||
| DIN 53455 | MPa | 50 | 80 | 60 | 100 | 80 |
| DIN 53454 | MPa | 170 | 170 | 150 | 170 | 150 |
| DIN 53463 | N | 3000 | 2500 | 2500 | 2500 | 2500 |
| DIN 53457 | MPa | 0.7x105 | 0.7x105 | 0.7x105 | 0.7x105 | 0.7x105 |
| DIN 53482 | Ω | 108 | 108 | 5x108 | 108 | 5x108 |
| DIN 53481 | kV | - | - | - | - | - |
| DIN 53481 | kV | 5 | 5 | 5 | 5 | 5 |
| DIN 53483 | max. | - | - | 0.3 | 0.3 | 0.3 |
| - | - | - | - | - | ||
| DIN 53483 | - | 5 | 5 | 5 | 5 | 5 |
| DIN 53480 | KC | 100 | 100 | 100 | 100 | 100 |
| DIN 53489 | max. | - | - | - | - | - |
| DIN 52612 | W/mk | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| VDE 0304/2 | 1/K | 2-4x10-5 | 2-4x10-5 | 2-4x10-5 | 2-4x10-5 | 2-4x10-5 |
| VDE 0304/2 | °C | 120 | 120 | 120 | 120 | 120 |
| - | MPa | 65 | 65 | 65 | 65 | 65 |
| DIN 53495 | mg | 120 | 120 | 120 | 120 | 120 |
| VDE | - | L1 | L1 | L1 | L1 | L1 |
| UL94 | Stufe | - | - | - | - | - |
| Requirement | ASTM Test Method / Other | Condition | Unit | Thickness (inch) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.015 | 0.031 | 0.062 | 0.094 | 0.125 | 0.188 | 0.250 | 0.500 | 0.750 | 1.000 | 1.001+ | ||||
| Minimum Breakdown Voltage | ASTM D229 | A | kV | -- | 40.0 | 40.0 | 40.0 | 40.0 | 40.0 | 40.0 | 40.0 | 40.0 | 40.0 | 30.0 |
| D-24/23 | kV | -- | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | ||
| Maximum Permittivity @ 1 MHz | ASTM D229 | A | — | -- | 5.80 | 5.80 | 5.80 | 5.80 | 5.80 | 5.80 | 5.80 | 5.80 | 5.80 | 5.80 |
| D-24/23 | — | -- | 6.00 | 6.00 | 6.00 | 6.00 | 6.00 | 6.00 | 6.00 | 6.00 | 6.00 | 6.00 | ||
| Maximum Dissipation Factor @ 1 MHz | ASTM D229 | A | — | -- | 0.055 | 0.055 | 0.055 | 0.055 | 0.055 | 0.055 | 0.055 | 0.055 | 0.055 | 0.055 |
| D-24/23 | — | -- | -- | -- | 0.070 | 0.070 | 0.070 | 0.070 | 0.070 | 0.070 | 0.070 | 0.070 | ||
| Min. Izod Impact Strength | ASTM D229 | E-48/50 | ft-lb/in (notch) | -- | -- | -- | -- | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 |
| -- | -- | -- | -- | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Min. Flexural Strength | ASTM D229 | A | ksi | -- | 16.0 | 16.0 | 16.0 | 16.0 | 16.0 | 16.0 | 15.0 | 15.0 | 14.5 | 14.5 |
| -- | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.5 | 13.0 | 13.5 | 13.0 | ||||
| Minimum Bonding Strength | ASTM D229 | A | lbs | -- | -- | -- | -- | -- | -- | -- | 1600 | 1600 | 1600 | 1600 |
| D-48/50 | lbs | -- | -- | -- | -- | -- | -- | -- | 1500 | 1500 | 1500 | 1500 | ||
| Maximum Water Absorption | ASTM D229 | D-24/23 | % | 5.80 | 4.00 | 1.95 | 1.55 | 1.30 | 1.00 | 0.95 | 0.70 | 0.60 | 0.55 | 0.55 |
| Flammability | UL 94 | A | Class | -- | HB | HB | HB | HB | HB | HB | HB | HB | HB | HB |