What Is Medium-High Temperature Cure Carbon Fiber Prepreg?
Medium-high temperature cure prepreg is cured in the 125–175°C window and delivers a post-cure glass transition temperature of ≥155°C. It is the choice when parts must hold their properties in sustained heat — UAV components, bicycle rims, automotive exhaust-adjacent parts and other heat-resistant industrial applications.
Representative Medium-High Temperature Models
| Internal Code | Form | Fiber | Fiber Weight | Resin Content | Resin System | Tg |
|---|---|---|---|---|---|---|
| G4P01(WP-R1312)25KD15033 | UD 25K | GX400 (T400-grade) 25K | 150 g/m² | 33±2% | GXP01 / WP-R1312 | ≥155°C |
| G4P02(WP-R5600)3KX20042 | Woven twill 3K | GX400 3K | 200 g/m² | 42±2% | GXP02 / WP-R5600 | ≥155°C |
Key Properties
High Tg. Tg ≥155°C after cure, with optional post-cure for maximum heat resistance.
Cure flexibility. Mouldable over a wide 125–175°C window; autoclave, press and vacuum-bag processing.
Excellent surface. Good surface quality for visible parts.
Strong mechanics. UD 25K system: tensile ≥2,180 MPa, modulus ≥130 GPa, compressive ≥1,210 MPa.
Good shop life. 20 days at 25°C / ≤65% RH; 365 days at −18°C.
Typical Applications
UAV & low-altitude. Airframes and heat-exposed structural parts.
Automotive. Exhaust system components and under-bonnet parts.
Cycling. Bicycle rims and wheel components.
Industrial. Heat-resistant rollers, machine guards and structural parts.
Marine. Parts exposed to elevated service temperatures.
Storage & Handling
Store at −18°C or below in sealed packaging; cumulative shelf life 365 days.
Thaw sealed rolls to room temperature (≥8 h) before opening to avoid condensation.
Keep working area at 23±2°C and relative humidity ≤65%.
Packaging & Delivery
Every medium-high temperature carbon fiber prepreg roll is packaged in moisture-barrier PE film with desiccant and shipped in sealed, humidity-indicating cartons, protecting the prepreg from moisture and mechanical damage during storage and transport.
medium-high temperature carbon fiber prepreg packaging 1
medium-high temperature carbon fiber prepreg packaging 2
Production & Workshop
medium-high temperature carbon fiber prepreg is produced on our advanced prepreg lines — from precise resin film casting and fibre impregnation to controlled slitting and winding — under ISO 9001 quality control with CNAS-accredited laboratory testing on every batch.
medium-high temperature carbon fiber prepreg production workshop 1
medium-high temperature carbon fiber prepreg production workshop 2
Loading & Shipping
Finished rolls are securely loaded and dispatched worldwide with full export documentation, ensuring the prepreg arrives on time and in perfect condition for your production line.
medium-high temperature carbon fiber prepreg loading and shipping 1
medium-high temperature carbon fiber prepreg loading and shipping 2
