APG 0731MA is a medium-density red silicone closed cell sponge that is designed for gasketing applications that require a soft and compressible material. This material is resistant to extreme temperatures and offers good compression set, making it suitable for use in a wide range of applications. It also has an adhesive backing, which allows it to be easily applied to surfaces without the need for additional adhesives. This versatile and durable material is an excellent choice for applications that require a soft and compressible material with good compression set and resistance to extreme temperatures.
| Properties | Test Method | Typical Values |
| Color | Red | |
| Firmness | Medium | |
| Cell Type | Closed Cell | |
| Backing Type | Adhesive | |
| Temperature Range | ASTM D 573 | -103ºF up to 450ºF |
| Brittle Point | ASTM D 746 | -103ºF |
| Tensile Strength | ASTM D 412 | 100 psi |
| Density, lbs/in3 | under 1/4” thick | ASTM D 1056 | .020 |
| Density, lbs/in3 | over 1/4” thick | ASTM D 1056 | .018 |
| Compression Deflection | ASTM D 575 | 11 psi |
| Compression Set | 22 hrs @ 212ºF | ASTM D 395 | 29% |
| Water Absorption | ASTM D 1056 | Pass |
| Thermal Conductivity BTU in/hr2 ºF | ASTM F 433 | .6 |
| Elongation % | ASTM D 412 | 200% |