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| Aerospace Product Selector > Higher Service Temperature Systems |
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| HTM45 | LTM110 | MTM110 | LTM123 | |
| Resin Type | Toughened Epoxy | Cyanate Ester | ||
| Tg (maximum achievable after post-cure at higher temperatures) | 195°C (383°F) | > 330°C (> 626 °F) | 330°C (626°F) | 210°C (410°F) |
| Out Life (at room temperature) | 21 days | 2 days | > 30 days | 2 to 3 days |
| Key Feature(s) | Good damage tolerance. High compression strength. |
Inherently flame retardant, low smoke and fume. Self-extinguishing. Withstands excursions to 280°C (536°F). Meets NASA out-gassing requirements. Good dielectric properties for radar transparency. |
Withstands excursions up to 330°C (626°F). |
High toughness. Very low moisture pickup. Excellent dimensional stability. Good dielectric properties for radar transparency. |
| Wet Tg | 130°C (266°F) | Not applicable | Not applicable | 120°C (248°F) |
| Cure Schedule | ||||
| Min. Cure Temp./Time |
120°C
(248°F) 10 hours |
70°C (158°F) 20 hours |
135°C (275°F) 2 hours |
80°C (176°F) 16 hours |
| Max. Cure Temp./Time |
180°C
(356°F) 2 hours |
100°C (212°F) |
300°C (572°F) 2 hours (post-cure) |
135°C (275°F) 1 hour |
| HTM110 | HTM143 | HTM552 | HTM556 | |
| Resin Type | Cyanate Ester | BMI | BMI | |
| Tg (maximum achievable after post-cure at higher temperatures) | 330°C (626°F) | 250°C (480°F) | 282°C (539°F) | 270°C (518°F) |
| Out Life (at room temperature) | 2 to 3 days | > 21 days | 30 days | 30 days |
| Key Feature(s) | Withstands excursions |
Inherently flame-retarded with low toxic gas and smoke generation. Very low in-service moisture pick-up. |
Toughened. |
Toughened. |
| Wet Tg | Not applicable | |||
| Cure Schedule | ||||
| Min. Cure Temp./Time |
180°C (356°F) 2 hours |
180°C (356°F) 2 hours |
190°C (374°F) 6 hours |
190°C (374°F) 6 hours |
| Max. Cure Temp./Time |
180°C (356°F) 2 hours |
250°C (480°F) 2 hours |
240°C (464°F) |
240°C (464°F) |
