Ultra-high Tg
SM-ER-58 Resin
Ultra-high Tg, up to 325°C
Product Description：
SM-ER-58 is a highly functional bisphenol-A based solid epoxy resin engineered for extreme environments. It exhibits a high epoxy value and massive crosslink density, serving as the foundational matrix for 200–300°C ultra-high temperature applications.
CAS NO. 66072-38-6
Classic Applications:
Main resin for 200–300°C heavy-duty structural adhesives.
Carbon fiber and glass fiber ultra-high temperature composites.
Typical Properties
| Property | Value |
| Appearance | Pale yellow to brown-red semi-solid |
| Epoxy Value, eq/100g | 0.60-0.64 |
| Viscosity @ 70±1°C (mPa·s) | 2,000 – 5,000 |
| Non-volatile Matter (%) | ≥98.5% |