| Appearance: | yellow liquid |
| Purity (%): | min. 99.0 |
| Free acid (%): | max. 1.0 |
| Gel time at 100°C: | 17 - 25 minutes |
| Neat Tg (°C): | min. 130 |
| Viscosity at 25°C (cP): | 50 - 80 |
Methyltetrahydrophthalic anhydride (MTHPA-EG) is a versatile low cost liquid anhydride hardener.
MTHPA-EG/8K is one of several pre-catalysed versions of MTHPA-EG. It contains a proprietary catalys
t that reduces cure time and boots glass transition temperature (Tg). With proper cure clycles a Tg
value of 140°C can be achieved. This product is specially formulated to remain liquid during the
winter season (typical pour point: -20°C to - 15°C). It provides unique characteristics to epoxy
cured materials such as high voltage and temperature resistance.
It finds use in the coating of wind mill blades and in reinforced plastics, filament winding pro
ducts, construction and sport equipment, laminated sheets as well as in the production of electrical
parts such as capacitors, resistors, transformers, ignition coils.
Specific applications include filament winding, adhesive, potting, casting, encapsulation and vacuum
impregnation.
Typical formulation:
Epoxy: . . . . . . . . . . bisphenol-A type, epoxy equivalent 190
Cure temperature: . . 100°C (app. 25 minutes gel time)
Mix composition:
Epoxy equivalent/anhydride equivalent = 1
Epoxy: . . . . . . . . . . . . 100 phr
Anhydride: . . . . . . . . . 87 phr
Suggestions for processing and use of our products correspond to our best knowledge and are always given without obligation. There is no liability for incorrect formulations and mixing recommendations. Each processor of our products is liable for compliance with all legal regulations, including those in the field of patent law.
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TRIGON Chemie GmbH
Breitwiesenstrasse 1
D-Schluechtern-Germany
Phone: +49 6661 9659 – 0
Fax.: +49 6661 9659-26
Email: info@trigon-chemie.com