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TRIGON Chemie Datasheet

MTHPA-EG/8K

Methyltetrahydrophthalic anhydride catalysed
CAS-no.:
11070-44-3 (MTHPA)
EC no.:
234-290-7 (MTHPA)
Specification:
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
Characteristic properties:
Viscosity at 25°C (cP):50 - 80
Applications:

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

Packaging:
210 kg drums
HS Taric-no.:
2917 35 00
UN-no.:
- -
Redaktion:
09/2012 PR

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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