Tooling Prepreg Charts
Our low-temperature cure epoxy tooling prepregs have become benchmark products across the workshops of motorsport and aerospace alike.
These products have a reputation for reliability, excellent surface finish, ease of handling and longevity of tool life. With up to 200°C (392°F) end-use temperatures, tools can be produced using a range of materials and methods.
HX Series Tooling Prepreg
Overview
| Prepreg | Applications | Tg (DMTA) following 190°C (374ºF) post-cure |
Min Cure Temp | Outlife | Benefits | Datasheet |
|---|---|---|---|---|---|---|
| HX42 | Large aerospace tooling | Onset: 200°C (392°F) Peak Tan δ: 220°C (428ºF) |
50°C (122°F) |
5 days | Longest out life, best surface finish at high temperature |
|
| HX50 | Fast curing automotive tooling | Onset: 190°C (374°F) Peak Tan δ: 220°C (428ºF) |
40°C (104°F) |
2-3 days | Excellent surface finish |
|
| HX70 | Very fast curing automotive tooling | Onset: 190°C (374°F) Peak Tan δ: 215°C (419ºF) |
30°C (86°F) |
30 hrs | Shorter autoclave curing time and very low curing temp |
|
| HX90N | High precision aerospace tooling | Onset: 193°C (379°F) Peak Tan δ: 214°C (417ºF) |
40°C (104°F) |
2 days | Lower CTE |
|
*Tg (DMTA) following 190°C (374°F) post-cure
Specifications
| Fiber Type | Weight (gsm) | Weave Style | Molded Thickness (mm) | Std. Resin content w/o | HX42 | HX50 | HX70 | HX90N | Package Sizes |
|---|---|---|---|---|---|---|---|---|---|
| Carbon High Strength | 205 | 2/2 Twill | 0.23 | 46 (surface ply) | X | X | Cut in squares | X | 1m x 25m |
| Carbon High Strength | 650 | 2/2 Twill | 0.59 | 35 | X | X | Cut in squares | X | 1m x 20m |
| Carbon High Strength | 300 | UD | n/a | 40 (corner intensifier) |
0.3m x 0.625m sheets | ||||
| E-Glass | 300 | 8-H Satin | .26 | 38 | X | X | 1m x 25m | ||
| E-Glass | 850 | 8-H Satin | .60 | 28 | X | X | 1m x 20m |


