ARADUR® HY 921

ARADUR® HY 921 belongs to the anhydrides chemical family and is compatible with epoxies (EP). It is designed for various applications, enhancing the performance and properties of epoxy-based formulations in industrial processes.

 

The information, specifications, and materials provided with this product are for general informational purposes only and are subject to change without notice. The product is provided “as is” without any warranties, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement. Users are responsible for ensuring the product is suitable for their intended application and for following all applicable safety guidelines and instructions.

The information, specifications, and materials accessible here may not reflect the most current version. Please use the Request a Document feature for the most current product documentation available.

Product Functions: Curing Agent, Hardener

Chemical Family: Anhydrides

Material Compatibility: Epoxy (EP) Polymers

Processing & Application Methods: Casting, Filament Winding, Impregnation, Potting, Pultrusion, Resin Transfer Molding (RTM)

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Chemical Family
Anhydrides
Function
Curing Agent,Hardener
Product Functions
Curing Agent,
Hardener
Technologies
Composite Materials,
Plastics
Product Families
Composite Materials — Additives
Functional Additives
Plastics — Polymer Additives
Catalysts, Initiators & Crosslinkers
Chemical Structure

- 1

Features & Benefits

Product Features
Good Electrical Properties,
Good Thermal Stability,
High Glass Transition Temperature,
High Modulus,
Low Viscosity,
Non-Crystallizing,
Thermal Resistance,
Thermal Shock Resistance
Features
  • High glass transition temperature
  • Low moisture permeability
  • Good thermal stability
  • Low viscosity
  • Improved thermal shock reisitance
  • High modulus
  • Non-crystallizing

Applications & Uses

Markets
Electrical & Electronics
Applications
Electrical & Electronics — Packaging & Assembly
Potting Compounds
Application Details

ARADUR® HY 921 Hardener can be used in epoxy potting, casting, vacuum impregnation. It is also an excellent selection for pultrusion, filament winding and resin transfer molding (RTM) applications.

Safety & Health

Safety Precautions
  • Avoid contact with eyes.
  • Avoid breathing dust.
  • Avoid prolonged or repeated contact with skin.
  • When poured, resin can generate static electricity sparks which can ignite flammable
  • vapors or dusts.
  • Use with good ventilation.
First Aid
  • Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. Destroy contaminated shoes.
  • Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
  • Ingestion: If conscious, give plenty of water to drink. Do not induce vomiting. Call a physician.
  • Inhalation: Remove to fresh air. Administer oxygen or artificial respiration if necessary. Call a physician.
  • Other: Referral to physician is recommended if there is any question about the seriousness of any injury.

Packaging & Availability

Regional Availability
  • Asia Pacific

Storage & Handling

Storage Information

Storage temperature is 2 to 40°C. Anhydride is general sensitive to moisture, storage container should be ventilated with dry air only.

Other

Appearance
Light yellow liquid
Material Compatibility
Epoxy (EP) Polymers
Physical Form
Liquid
Processing & Application Methods
Casting,
Filament Winding,
Impregnation,
Potting,
Pultrusion,
Resin Transfer Molding (RTM)
Physical Properties
ValueUnitsTest Method / Conditions
Viscosity30.0-60.0mPa.sat 25°C