OUR PRODUCTS
Semipreg / prepreg
In the world of composites preimpregnated fabrics well known as prepregs are used for a long time.
Regarding increasing demand for this way of dry production of laminate parts we have developed our own alternative, which keeps all advantages of prepregs and adds new ones. We started to call our product semipreg, becase we are talking about fabric impregnated from one side by resin foil LETOXIT LFX.
| SEMIPREG = FABRIC IMPREGNATED FROM ONE SIDE BY FOIL RESIN |
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Advantages
- SOLVENT FREE TECHNOLOGY! As a big advantage in comparison with prepreg we can consider zero contents of volatile compounds. Due this characteristic no volatile compounds are released during final part preparation and curing!
- SPEED UP YOUR PRODUCTION - in compariosn with liquid resin you can produce 3x faster!
- GREAT VARIABILITY IN COMPOSITION - you can choose from various types of epoxy foil (film) resins LETOXIT LFX and required glass, carbon or hybrid fabric. In our product range, you can find resins developed for impregnation of dense fabrics (carbon, aramide), with high temperature resistance (250°C), with higher impact strength or resins fulfiling standards FAR 23 and FAR 25.
- CUSTOMER MADE - in a view of great variability we can offer you the right semipreg for various types of special applications. Suitable for production of large volume or for production of small quantities too.
- CONSULTANCY - if you know characteristics of the final part, we will suggest you optimal composition free of charge!
Aplication
- aviation
- automotive
- shipbuilding
- composite panel sandwich production
- health care
- sport equipment
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SEMIPREGS LETOXIT
| Semipreg LETOXIT | Area weight (g/sqm) |
Ratio Reinforcement/Resin (%) |
Curing | Characteristics |
|---|---|---|---|---|
| SGG 0101 | 456 | 47/53 | 60 min /120 °C | waves permeable (RF), aviation, satellites, radomes |
| SGG 0301 | 400 | 50/50 | 60 min /120 °C | self extinguishing (FAR 23) |
| SGG 0601 | 600 | 50/50 | 45 min /120 °C | non - flammable (DIN 5510-2) |
| SGG 5001 | 650 | 60/40 | 30 min/120°C | fast curing |
| SGG 0105 | 400 | 50/50 | 60 min./120 °C | all - purpose application (glass) |
| SGC 0206 | 400 | 50/50 | 60 min /120 °C | all - purpose application (carbon) |
| SGC 0501 | 280 | 57/43 | 30 min/120°C | fast curing (tow spread carbon) |
| SGC 0506 | 440 | 45/55 | 30 min/120°C | fast curing, higher ratio of resin, nice surface |
| SGK 0101 | 370 | 45/55 | 60 min /120 °C | all - purpose application (aramid), great mechanical properties |
Material compositon
| Semipreg LETOXIT | Fabric (type, g/sqm, vazba) | Resin (typ, g/m2) | Temperature resistance (°C) |
|---|---|---|---|
| SGG 0101 | glass, 216 g/sqm, satin | epoxy, 240 g | 100 |
| SGG 0301 | glass, 200 g/sqm, plain | epoxy, 200 g | 135 |
| SGG 0601 | glass, 300 g/sqm, twill | fenol, 300 g | 103 |
| SGG 5001 | glass, 390 g/sqm, twill | epoxy, 260 g | 100 |
| SGG 0105 | glass,, 200 g/sqm, plain | epoxy, 200 g | 100 |
| SGC 0206 | carbon, 200 g/sqm, plain | epoxy, 200 g | 125 |
| SGC 0501 | Textrem 160 g/sqm | epoxy, 120 g | 125 |
| SGC 0506 | carbon, 200 g/sqm, plain | epoxy, 240 g | 125 |
| SGK 0101 | aramid, 170 g/sqm, plain | epoxy, 200 g | 100 |
In case you didnt find the right composition of materials, our semipregs can be combined with any of our epoxy foil resins LETOXIT LFX
Without the change of properties, the semipreg can be stored for 1 month at +20°C, for 4 months at 5°C and up to 1 year for –18°C. The temperature +30°C mustn’t be crossed during transport and storage
THE WORLD OF COMPOSITES