ARALDITE® LY 564 / ARADUR® 2954

ARALDITE® LY 564 / ARADUR® 2954 is a low-viscosity epoxy resin, formulated liquid amine hardener. Used in aerospace and industrial composites.

RTU Product Type: Resin System (Unspecified)

Product End Uses: Industrial Composites

Chemical Family: Epoxy & Epoxy Derivatives

Composites Processing Methods: Filament Winding, Infusion, Pressure Molding, Pultrusion, Resin Transfer Molding (RTM), Wet Lay-Up

Features: Chemical Resistant, Easy to Mix, Excellent Thermal Properties, Good Mechanical Properties, Long Potlife, Low Viscosity, Room Temperature Curing

Cure Method: Heat Cure

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Enhanced TDS

Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
Product Advantages
  • Ease of mixing
  • Complete impregnation of fibers
  • Room or elevated temperature curing
  • Good mechanical properties

Applications & Uses

Composites Processing Methods
Cure Method
Product End Uses
Markets
Applications
Mixing Ratio

We recommend that the components are weighed with an accurate balance to prevent mixing inaccuracies which can affect the properties of the matrix system. The components should be mixed thoroughly to ensure homogeneity. It is important that the side and the bottom of the vessel are incorporated into the mixing process.
Note: when processing large quantities of mixture the pot life will decrease due to exothermic reaction. It is advisable to divide large mixes into several smaller containers.

Product Processing Instructions
  • Resin Transfer Molding (RTM)
  • Filament Winding
  • Pressure Molding
  • Pultrusion
  • Wet Lay-up

Technical Details & Test Data

Curing

Typical Curing Schedules

2 hours at 60°C + 4 - 8 hours at 120°C
or 1 hour at 80°C + 2 - 8 hours at 140°C
or 0.5 hours at 100°C + 2 - 8 hours at 160°C
Cured Properties

Neat Resin Properties

Property

Unit

Cure: 1 h 80°C + 8 h 140°C

Cure: 1 h 80°C + 4 h 160°C

Tg (DSC) °C 146 148
Tensile Strength kpsi 10.7 11.6
Tensile Elongation % 5 6.8
Tensile Modulus kpsi 377 362
Flexural Strength kpsi 17.7
Flexural Modulus kpsi 374
Flexural Elongation % 7.0
Fracture Toughness K₁C √in·lbf/in² 652 ± 32
Fracture Energy G₁C in·lbf/in² 0.94 ± 0.05

 Water Absorption

Condition

Unit

Cure: 1 h at 80°C + 8 h at 140°C

10 days H₂O at 23°C % 0.23
60 min H₂O at 100°C % 0.94

Coefficient Of Linear Thermal Expansion

Property Unit Value
α (from 20 - 80°C) 10⁻⁶/K 40
Cure  

1 h at 80°C + 8 h at 140°C

 POISSON’S RATIO

Unit Value
0.35
Product Properties

Due to the excellent handling behavior the system is suitable for various production processes. It combines low viscosity with long pot life at elevated temperatures. The Cured system shows excellent mechanical, dynamic and thermal (hot/wet) properties and good chemical resistance

Laminate Properties

Tensile / Flexural
Samples: E-glass fabric, 1200 tex, silane finish
Fiber volume content: 63 - 65%
Cure: 1 h 80°C + 8 h 140°C

Property Unit Value Cure
Transverse Tensile Test kpsi 6.23 – 7.10

1 h at 80 °C + 8 h at 140 °C

Tensile Strength kpsi 6.53 – 7.01  
Tensile Modulus kpsi 2280 – 2300  
Tensile Elongation % 0.28 – 0.32  
Transverse Compressive Test kpsi 15.5 – 20.3  
Elastic Modulus kpsi 2245 – 2320  

Torsion Test

Property Unit Value
Shear Strength kpsi 8.5 – 9.3
Shear Modulus kpsi 720 – 870

Interlaminar Shear Strength (ILSS)
Short Beam: E-glass unidirectional specimen, thickness = 3.2 mm
Fiber Volume Content : 60%

Property Unit Value Cure
Shear Strength psi 8500 – 9100

1 h at 80 °C + 8 h at 140 °C

Safety & Health

Handling Precautions

Danger ! Corrosive. Causes skin and eye burns. May cause allergic skin reaction.

  • Avoid contact with eyes.
  • Avoid contact with skin.
  • Use with good ventilation.

 

First Aid


In case of contact :

  • Eyes : Promptly flush with large amounts of water. Get immediate
  • medical attention.
  • Skin : Promptly wash with mild soap and water.
  • Inhalation : Remove to fresh air. Give oxygen if breathing is difficult.
  • Ingestion : If conscious, give plenty of water. Get immediate medical attention.