Shin-Etsu Polymer offers sheets of silicone rubber insulative sponge that provide excellent thermal insulation with good mechanical strength and durability with superb heat and cold resistance.
RA-type has an exposed cell structure focussing on thermal insulation.
CT-type has a closest skin that provides additional shielding for water and air.
Thermal insulation sponge properties
| Parameter | Unit | RA Type | CT Tpye |
|---|---|---|---|
| Thickness | mm | 2/ 3/ 4/ 5/ 6/ 8/ 10/ 15 | 1/ 2/ 3/ 4/ 5 |
| Sheet size | mm2 | 300*300/ 500*500 | 300*850 |
| Relative density | 0.8 | 0.4 | |
| Tensile strength | MPa | 24 | -- |
| Elongation | % | 248 | -- |
| Hardness | HDA | 50 | |
| Tensile strength change (225ºC, 70 hrs) | % | -25 |
