High Density Polyurethane Foam
High density urethane is open celled foam which provides excellent resistance to stress relaxation and compression set for gaskets and cushioning. It also provides good vibration isolation and impact absorption. Passes fogging SAE J-1765, gasketing & sealing UL 50 and UL508, and ozone resistance GM 4486P. High density urethane is the right choice for durable, long term gasketing applications.
Applications include: Protective cases, sealing, vibration isolation, sound damping
- Excellent compression set resistance
- Good chemical resistance
- Die-cuts cleanly
- Available in a wide variety of durometers from very soft to hard
| 4701-30 | 4701-40 | 4701-50 | 4701-60 | ||
| Property | Units | Results for 0.188" - 0.5" | |||
| Product Brands | Poron, Griswold, 3M Isoloss | ||||
| Density | lb / ft 2 | 15 | 15 | 15 | 15 |
| Compression Deflection (25%) | psi | 1 - 5 | 4 - 8 | 8 - 14 | 18 - 5- |
| Shore OO Durometer | ˂ 3 | 10 | 18 | 42 | |
| Tensile Strength | psi | .75 | 66 | 107.9 | 149 |
| Elongation Die A | % | 161 | 168 | 157 | 86 |
| Tear Strength Die C | lb. / in | 5 | 9 | 12 | 12 |
| Compression Set | % | 10 | 10 | 10 | 10 |
| Water Absorption | Wt % | 12 | 10 | 13 | 19 |
| Thermal Conductivity | K Factor | 0.53 | 0.60 | 0.63 | 0.61 |
| Service Temperature | F | -40 - 194 | -40 - 194 | -40 - 194 | 5 - 158 |
| Combustion Characteristics | FMVSS3022 | Pass | Pass | Pass | Pass |
| UL94HF-1 | Pass | Pass | Pass | Pass | |