ARALDITE® 5871 A/B

ARALDITE® 5871 A/B epoxy adhesive is a multi-purpose, viscous material that is suitable for bonding a variety of materials including metal, ceramic, and wood. This electrically insulating adhesive is easy to apply either manually by spatula and stiff brush or mechanically with meter/mix and coating equipment. ARALDITE® 5871 A/B epoxy adhesive cures at temperatures from 20°C (68°F) to 180°C (356°F) with no release of volatile constituents.

 

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.

RTU Product Type: Electrically Non-Conductive Adhesive, Epoxy Adhesive

Product End Uses: Electrical Insulation Application, Insulating Materials

Material Compatibility: Ceramic Substrate, Elastomer & Rubber Substrate, Foam Surface, Metal Substrate, Plastics Substrate, Wood Substrate

Processing & Application Methods: Brushing, Spatula Spreading

Chemical Family: Epoxy & Epoxy Derivatives

Product Features: Dynamic Load Resistance, Easy Application, Electrical Insulation Properties, High Peel Strength, High Shear Properties, High Shear Strength, High Temperature Application, Long Open Time, Static Load Resistance

Enhanced TDS

Identification & Functionality

Features & Benefits

Product Features
Product Features
  • Long open time
  • High shear and peel strengths
  • Easy to apply
  • Good resistance to static and dynamic loads
  • Electrically insulating
Product Features
  • Long open time
  • High shear and peel strengths
  • Easy to apply
  • Good resistance to static and dynamic loads
  • Electrically insulating

Applications & Uses

Product End Uses
Processing 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 Test Values(1)
Ultimate Tensile Strength, psi (MPa) ASTM D-638 4800 (33)
Elongation, % ASTM D-638 9
Tg per DMA, °F (°C) ASTM D-4065 146 (63)
Hardness, Shore D ASTM D-2240 80
Coefficient of Thermal Expansion, (ppm/°C) ASTM E-831 85
Thermal Conductivity, W/mk ISO 8894/90 0.22
Roller Peel Test, pli (N/mm) ISO 4578 28 (4.9)

 

Fatigue Strength

Tested using a load frequency of 90 Hz and a 1 inch (25 mm) joint overlap

Cured 20 min at 212ºF (100ºC).  
Fatigue Limit Load % Static Shear Strength Cycles to Failure(1)
50 103 -104
40 104 -105
30 105 -106
25 105 -106
20 106 -107
15 107

 

Lap Shear Strength, psi (MPa)
Tested on Metal Substrates
(Cured 20 min at 212ºF (100ºC)
Metal Substrate Thickness (in./mm) Test Values
Carbon Steel 0.039/1.0 3840 (26.4)
Stainless Steel 0.039/1.0 3270 (22.5)
Galvanized Steel1 0.6/1.5 1990 (13.7)
Copper 0.6/1.5 3270 (22.5)
Brass 0.6/1.5 2990 (20.6)
Brass 5 year 1990 (13.7)
140ºF (60ºC) 3 days 2560 (17.6)
140ºF (60ºC) 10 days 2420 (16.6)
140ºF (60ºC) 30 days 2130 (14.7)
176ºF (80ºC) 3 days 2130 (14.7)
176ºF (80ºC) 10 days 2130 (14.7)
176ºF (80ºC) 30 days 2130 (14.7)
176ºF (80ºC) 60 days 2130 (14.7)
176ºF (80ºC) 1 year 1280 (8.8)
176ºF (80ºC) 2 years 710 (4.9)
176ºF (80ºC) 3 years 710 (4.9)

 

Lap Shear Strength, psi (MPa)  
Effect of Heat Aging  
Cured 16 hours at 104ºF (40ºC). Test Method
Cure Cycle ASTM D-1002
Aging Temperature Exposure Time
68ºF (20ºC) 0 days
68ºF (20ºC) 1 years
68ºF (20ºC) 2 years
68ºF (20ºC) 3 years
68ºF (20ºC) 4 years
68ºF (20ºC) 5 year
140ºF (60ºC) 3 days
140ºF (60ºC) 10 days
140ºF (60ºC) 30 days
176ºF (80ºC) 3 days
176ºF (80ºC) 10 days
176ºF (80ºC) 30 days
176ºF (80ºC) 60 days
176ºF (80ºC) 1 year
176ºF (80ºC) 2 years
176ºF (80ºC) 3 years

 

Lap Shear Strength, psi (MPa)
Effect of Tropical Exposure
(104ºF/40ºC/92% R.H.)
Cure Cycle Exposure Time Test Values
16 hrs at 104ºF (40ºC) 0 days 2560 (17.6)
16 hrs at 104ºF (40ºC) 10 days 2560 (17.6)
16 hrs at 104ºF (40ºC) 30 days 1710 (11.8)
16 hrs at 104ºF (40ºC) 60 days 1560 (10.7)
16 hrs at 104ºF (40ºC) 90 days 570 (3.9)
20 min at 212ºF(100ºC) 0 days 3980 (27.4)
20 min at 212ºF(100ºC) 10 days 2560 (17.6)
20 min at 212ºF(100ºC) 30 days 1710 (11.8)
20 min at 212ºF(100ºC) 60 days 1560 (10.7)
20 min at 212ºF(100ºC) 90 days 1280 (8.8)

 

Lap Shear Strength, psi (MPa)
Effect of Immersion

Cure cycle 16 hours at 104ºF (40ºC). Immersion for 90 days in media listed.

Properties Test Values
Standard - As prepared 2560 (17.6)
Acetone (30 days) 570 (3.9)
Acetylene 430 (2.9)
Gasoline 2410 (16.6)
Ethyl Acetate (30 days) 570 (3.9)
Acetic Acid 10% Degraded
Methanol Degraded
Lubricating Oil - HD30 2560 (17.6)
Kerosene Degraded
Trichloroethylene Degraded
Water at 68°F (20°C) 1420 (9.8)
Water at 194°F (90°C) 430 (2.9)

 

Lap Shear Strength, psi (MPa) Test Method - ASTM D-1002
Effects of Test Temperature

Load applied 10 minutes after specimens reach test temperature.

Cure Cycle Test Temp. Test Values(1)
5 days at 77ºF (25ºC) -76ºF (-60ºC) 2840 (19.5)
5 days at 77ºF (25ºC) -4ºF (-20ºC) 2840 (19.5)
5 days at 77ºF (25ºC) 68ºF (20ºC) 2560 (17.6)
5 days at 77ºF (25ºC) 104ºF (40ºC) 1420 (9.8)
5 days at 77ºF (25ºC) 140ºF (60ºC) 570 (3.9)
20 min at 212ºF (100ºC) -76ºF (-60ºC) 3560 (24.5)
20 min at 212ºF (100ºC) -4ºF (-20ºC) 3410 (23.5)
20 min at 212ºF (100ºC) 68ºF (20ºC) 3980 (27.4)
20 min at 212ºF (100ºC) 104ºF (40ºC) 1990 (13.7)
20 min at 212ºF (100ºC) 140ºF (60ºC) 1000 (6.9)

 

Lap Shear Strength, psi (MPa) Test Method
Effect of Cure Time and Test Temperature ASTM D-1002
Cure Cycle 8 hours
77ºF (25ºC) 15 hours
77ºF (25ºC) 24 hours
77ºF (25ºC) 72 hours
77ºF (25ºC) 5 days
158ºF (70ºC) 1 hour
158ºF (70ºC) 2 hours
158ºF (70ºC) 3 hours
212ºF (100ºC) 10 minutes
212ºF (100ºC) 20 minutes
212ºF (100ºC) 30 minutes
302ºF (150ºC) 5 minutes
302ºF (150ºC) 10 minutes
302ºF (150ºC) 20 minutes

Technical Details & Test Data

Cure Schedule

Temperature

Handling Strength

Minimum Cure Time

68ºF (20ºC) 12 hours 15 hours
77ºF (25ºC) 7 hours 12 hours
104ºF (40ºC) 2 hours 3 hours
158ºF (70ºC) 30 minutes 50 minutes
212ºF (100ºC) 6 minutes 10 minutes
302ºF (150ºC) 4 minutes 5 minutes

Packaging & Availability

Regional Availability
  • Americas

Storage & Handling

Storage Conditions
  • Araldite® epoxy adhesive components should be stored in their original, sealed containers at temperatures between 2°C and 40°C (35.6°F-104°F).
  • Under these storage conditions the shelf life is 3 years.
  • ARALDITE® 5871 A/B should not be exposed to direct sunlight.

Other

Material Compatibility
Processing & Application Methods
Application Information
ValueUnitsTest Method / Conditions
Mix Ratio0.8%(W)Hardener : Resin
Physical Properties
ValueUnitsTest Method / Conditions
Viscosity45000.0cPsASTM D2393 at 25°C