ARALDITE® AV 144-2 / HARDENER HV 997

ARALDITE® AV 144-2 / HARDENER HV 997 is a two-component, thixotropic system that cures at room temperature. Once cured, the adhesive exhibits high strength and toughness, along with good environmental stability and chemical resistance. Although primarily designed for metal bonding, ARALDITE® AV 144-2 / HARDENER HV 997 is also suitable for joining materials such as ceramics, glass, rubbers, and rigid plastics.

RTU Product Type: 2K (2 component) Adhesive, Epoxy Adhesive

Compatible Substrates & Surfaces: Ceramic, Glass, Metal, Plastics

Application Method: Spatula

Chemical Family: Epoxy & Epoxy Derivatives

Features: Chemical Resistant, Excellent Toughness, Good Environmental Stability, Good Gap Filling Capabilities, High Strength, Metallic Look, Non-Sagging, Thixotropic

Enhanced TDS

Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
Advantages
  • Metallic appearance
  • Thixotropic
  • Good environmental stability and chemical resistance
  • Gap-filling, non-sagging up to 0.2 inch (5 mm) thickness
  • Bonds a wide variety of materials including metals, ceramics, rubbers and rigid plastics

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Processing Information

Cure Schedule

Temperature Handling Strength

Minimum Cure Time

50°F (10 °C) 17 hours 27 hours
59°F (15 °C) 10 hours 13 hours
77°F (25 °C) 4 hours 10 hours
104°F (40 °C) 90 minutes 2 hours
140°F (60 °C) 20 minutes 40 minutes
212°F (100 °C) 6 minutes 6 minutes
Application Information
  • Metals
  • Ceramics
  • Glass
  • Vulcanized rubber

Properties

Physical Form

Technical Details & Test Data

Typical Cured Information

Application of Adhesive
The resin/hardener mix is applied with a spatula to the pretreated and dry joint surfaces. A layer of adhesive 0.002 to 0.004-inches (0.05 to 0.10-mm) thick will normally impart the greatest lap shear strength to a joint.
The joint components should be assembled and clamped as soon as the adhesive has been applied. Even contact throughout suffices to ensure proper cure.


Standard Test Specimens
Unless otherwise stated, the figures given below were all determined by testing standard specimens made up by lap-jointing 4-inch x 1-inch x 0.06-inch (10-cm x 2.5-cm x 1.5-mm) strips of aluminum. The joint area was 0.5 x 1 inch (12.5 mm x 2.5 cm) in each case.

Property                                                             Test Method
Lap Shear Strength, psi (Mpa)                            DIN 53283
Effects of cure time and temperature

Cure Cycle                                                      Test Values(1)
7 days at 77 °F (25 °C)                                    3000 (20.6)
24 hours at 77 °F (25 °C) +                              3200 (22)
30 min at 176 °F (80 °C)

Property 

Lap Shear Strength, psi (Mpa) - DIN 53283
Effects of Test Temperature

(Load applied 10 minutes after specimens reach test temperature.)

7 days at 77°F (25°C)
Temperature Value Unit
-40°F (-40°C) 2600 (17.9) psi (MPa)
-4°F (-20°C) 2700 (18.6) psi (MPa)
32°F (0°C) 2800 (19.3) psi (MPa)
68°F (20°C) 3000 (20.6) psi (MPa)
104°F (40°C) 3100 (21.3) psi (MPa)
140°F (60°C) 1200 (8.2) psi (MPa)
176°F (70°C) 700 (4.8) psi (MPa)
212°F (100°C) 500 (3.4) psi (MPa)
248°F (120°C) 1300 (8.9) psi (MPa)
20 min at 212°F (100°C) + -40°F (-60°C)
Temperature Value Unit
-40°F (-40°C) 3100 (21.3) psi (MPa)
-4°F (-20°C) 3150 (21.7) psi (MPa)
32°F (0°C) 3200 (22) psi (MPa)
68°F (20°C) 3200 (22) psi (MPa)
104°F (40°C) 2800 (19.3) psi (MPa)
140°F (60°C) 1450 (10) psi (MPa)
176°F (70°C) 800 (5.5) psi (MPa)
212°F (100°C) 550 (3.8) psi (MPa)
248°F (120°C) 1400 (9.6) psi (MPa)

Lap Shear Strength, psi (Mpa)
Effects of Immersion
(Cure cycle 16 hours at 104 °F (40 °C). Immersion for 90 days in media listed.)

Lap Shear Strength (DIN 53283) - Effects of Media

Media Lap Shear Strength Unit
Standard – As Prepared 2600 (17.9) psi (MPa)
IMS 1900 (13.1) psi (MPa)
Gasoline 2500 (17.2) psi (MPa)
Ethyl Acetate (30 days) 3000 (20.6) psi (MPa)
Acetic Acid 10% 300 (2) psi (MPa)
Xylene 2600 (17.9) psi (MPa)
Lubricating Oil – HD30 3000 (20.6) psi (MPa)
Paraffin 3000 (20.6) psi (MPa)
Water at 68°F (20°C) 1600 (11) psi (MPa)
Water at 194°F (90°C) 600 (4) psi (MPa)

 

Lap Shear Strength, psi (Mpa)
Effects of Tropical Exposure

(104 °F (40 °C) / 92 % RH)

Exposure Time Lap Shear Strength Unit Exposure Time
16 hrs at 104°F (40°C) 2600 (17.9) psi (MPa) 0 day
2700 (18.6) psi (MPa) 30 days
2500 (17.2) psi (MPa) 60 days
2300 (15.8) psi (MPa) 90 days

 

Lap Shear Strength, psi (Mpa) -  DIN 53283
Effects of Heat Aging
(Cured 16 hours at 104 °F (40 °C)

Aging Temperature (°F/°C) Exposure Time Lap Shear Strength Unit
158°F (70°C) 0 day 2600 (17.9) psi (MPa)
30 days 2900 (20) psi (MPa)
60 days 2400 (16.5) psi (MPa)
90 days 3000 (20.6) psi (MPa)

 

Lap Shear Strength, psi (Mpa)
Tested on Metal Substrates

(Cured 16 hours at 104 °F (40 °C)

Metal Substrate Thickness (in/mm) Lap Shear Strength Unit
Carbon Steel 0.039 / 1.0 2100 (14.5) psi (MPa)
Stainless Steel 0.039 / 1.0 3400 (23.4) psi (MPa)
Galvanized Steel 0.06 / 1.5 2000 (13.8) psi (MPa)
Copper 0.06 / 1.5 2600 (17.9) psi (MPa)
Brass 0.06 / 1.5 2600 (17.9) psi (MPa)

 

Tg per DMA, °F (°C)  -  ISO 4578 -  149 (55)
Roller Peel Test, pli (N/mm)  -   23 (4)

Safety & Health

Handling Precautions

To protect against any potential health risks presented by our products, the use of proper personal protective equipment (PPE) is recommended. Eye and skin protection is normally advised. Respiratory protection may be needed if mechanical ventilation is not available or is insufficient to remove vapors.

Safety Information
  • Eyes and skin : Flush eyes with water for 15 minutes. Contact a physician if irritation persists. Wash skin thoroughly with soap and water. Remove and wash contaminated clothing before reuse.
  • Inhalation : Remove subject to fresh air.
  • Swallowing : Dilute by giving water to drink and contact a physician promptly. Never give anything to drink to an unconscious person.

Other

Application Information
ValueUnitsTest Method / Conditions
Mix Ratio0.6 %(W)%(W)Hardener : Resin