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Dixie Chemical NMA

Chemical Family
Anhydrides

NADIC methyl anhydride (NMA) is a liquid alicyclic anhydride commonly used to cure epoxy resins in many challenging applications, including fiber reinforced composites used in high performance aerospace and military applications, as well as mechanically demanding applications like filament wound bearings. The excellent electrical properties and high temperature performance make NMAcured epoxies outstanding materials for encapsulating electronic components and circuits. NMA demonstrates many excellent characteristics when used as a curing agent for epoxy resins

Properties

Physical Form
Liquid

Identification

CASE Ingredients Functions
Curing Agent

Product families

Applications

Electrical & Electronics — Packaging & Assembly
  • Potting Compounds

Product Families

CASE Ingredients — Additives
  • Functional Additives

Other characteristics

Features

Easy Handling, Good Compatibility, Good Shrinkage Resistance, High Impact Resistance, Improved Hardness, Long Potlife, Low Odor, Low VOC, Low Viscosity, Thermal Resistance

Functions
Curing Agent
Labeling Claims
Low VOC
Compatible Polymers & Resins
Epoxies (EP), Polyesters
Markets
Electrical & Electronics
Storage

It is recommended that NADIC methyl anhydride is stored between the temperatures of 18° C (85° F) and 40° C (104° F) to avoid freezing, although the material is not affected by freezing. If material does freeze, thaw at a temperature below 40° C and mix well before using. Store in a dry place and keep container tightly closed to prevent absorption of atmospheric moisture or contamination. The presence of moisture could cause free acid to form in the anhydride. NMA will react with water to form diacids. This is normally undesirable, so NMA should be stored in such a way that it is carefully protected from moisture contamination. For more details on the design of bulk storage for NMA, consult the Dixie Chemical Company brochure "Epoxy Curing Agent Storage Requirements."

Appearance
Pale yellow to tan liquid
Technology
CASE Ingredients
Compatible Polymers and Resins
  • Epoxies (EP)
  • Polyesters

Technical data

Table 1 of 1

5 rows
CharacteristicValueUnitMethod
Specific Gravity1.20-1.25g/ccD-102 (ASTM D 4052)
Viscositymax. 300cPD-150F
Boiling Point132° CASTM D86
Flash Point135° CASTM D93
Molecular Weight178.2——

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