ARALDITE® 2035 A/B

ARALDITE® 2035 A/B adhesive is an extrudable, two-component, room temperature curing epoxy adhesive designed for service temperatures up to 400°F (204°C). This product is suitable for bonding a wide variety of materials such as metals, composites, and many other dissimilar substrates. The combination of high shear strength and compression makes this adhesive well suited for transportation, oil and gas, general industrial applications, and other applications requiring high-temperature performance. ARALDITE® 2035 A/B adhesive offers a rapid build-up of strength with an easy-to-process mix ratio.

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

Application Area: Extruding Application

Compatible Substrates & Surfaces: Composites, Metal

Chemical Family: Epoxy & Epoxy Derivatives

Features: Good Compressive Strength, High Lap Shear Strength, High Strength, High Temperature Performance, Low Outgassing, Room Temperature Curing

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Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
Product Features
  • Ideal for bonding metals and composites
  • Room temperature cure
  • High lap shear and compressive strength
  • Maximum service temperature up to 400°F (204°C)
  • Resistant to environmental degradation / aging
  • Convenient 2:1 volumetric mix ratio for cartridges or meter mix dispensing
  • Contains 0.005” spacer beads
  • Low outgassing

Applications & Uses

Application Area
Compatible Substrates & Surfaces
Processing Information
  • Substrates should be properly surface treated and be free from any contaminants.
  • Mix both components thoroughly for several minutes until a homogeneous mixture is obtained. Mixing with a centrifugal mixer such as a FlackTek, Hauschild, or Thinky mixer can improve results.
  • Total mixing time at 2000 rpm should be kept below 1 minute to avoid excessive heating.
  • Dispensing from a 2:1 dual barrel cartridge through a static mixer is the preferred method.
  • The mixed adhesive should be applied to both dry joint surfaces with a spatula.
  • A layer of adhesive 0.004 to 0.012 inches (0.1 to 0.3 mm) thick will normally provide the maximum lap shear strength.
  • However, this adhesive has been specifically designed to be effective in layers of up to 0.12 in. (3 mm).
  • The components to be bonded should be assembled and clamped as soon as the adhesive has been applied.
  • Even contact pressure throughout the joint area during cure will ensure optimum performance.

 

Processing Information

Parameter Value
Mix ratios 100:62 Per Weight
2:1 Per Volume
Mixing color indicator Resin (A): Off-White
Hardener (B): Dark Gray
A/B Mixed: Gray
Viscosity at 10/s shear rate A: 650,000 cP
B: 165,000 cP
Mixed: 300,000 cP
Sag/Slump Test [ASTM D2202] No Sag
Static Mixer / Extrusion rate at 80psi 0.50in diameter, 24 element ... 38 g/min
0.44in width, 26 element ... 44 g/min
Recommended Cure Schedules 5 days at 77°F (25°C)
77°F / 2-3 hours + 150°F (66°C) / 1-2 hours
77°F / 2 hours + 200°F (93°C) / 45-60 minutes
77°F / 3 hours + 250°F (121°C) / 30-45 minutes
77°F / 3 hours + 300°F (149°C) / 15-30 minutes
Working time (within nozzle) 60 min within nozzle, 30 min for 100g mass
Gel time at 77°F (25°C) 20g / 90 min; 50g / 75 min; 100g / 40 min
Fixture time at 77°F (25°C) 3.75 hours

 

Strength Development at Room Temperature. Anodized & Primed Aluminum

 

ARALDITE® 2035 A/B - Processing Information - 1

Technical Details & Test Data

Processing Data

Lap Shear Strength versus Temperature

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Compressive Strength versus Temperature

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Processing Information
  • Substrates should be properly surface treated and be free from any contaminants.
  • Mix both components thoroughly for several minutes until a homogeneous mixture is obtained.
  • Mixing with a centrifugal mixer such as a FlackTek, Hauschild, or Thinky mixer can improve results. Total mixing time at 2000 rpm should be kept below 1 minute to avoid excessive heating.
  • Dispensing from a 2:1 dual barrel cartridge through a static mixer is the preferred method.
  • The mixed adhesive should be applied to both dry joint surfaces with a spatula.
  • A layer of adhesive 0.004 to 0.012 inches (0.1 to 0.3 mm) thick will normally provide the maximum lap shear strength. However, this adhesive has been specifically designed to be effective in layers of up to 0.12 in. (3 mm).
  • The components to be bonded should be assembled and clamped as soon as the adhesive has been applied. Even contact pressure throughout the joint area during cure will ensure optimum performance.

       

Property Value Unit Test Method At Condition
Extrusion Rate 38 g/min Static Mixer

at 80 psi (0.50 in diameter, 24 element)

Extrusion Rate 44 g/min Static Mixer

at 80 psi (0.44 in width, 26 element)

 

Property Value Unit At Condition
Cure Schedule 5 days at 77°F (25°C)
Cure Schedule 2-3 hours

at 77°F + 150°F (66°C) for 1-2 hours

Cure Schedule 2 hours

at 77°F + 200°F (93°C) for 45-60 minutes

Cure Schedule 3 hours

at 77°F + 250°F (121°C) for 30-45 minutes

Cure Schedule 3 hours

at 77°F + 300°F (149°C) for 15-30 minutes

 

Strength Development at Room Temperature. Anodized & Primed Aluminum

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Typical Cured Information

 

Property

Condition Test Temp Value Unit Test Method
Tensile Lap Shear Strength Aluminum 2024*, Cured 150°F (66°C)/1h at -65°F (-55°C) 4,500 psi ASTM D1002
Tensile Lap Shear Strength Aluminum 2024*, Cured 150°F (66°C)/1h at 77°F (25°C) 5,500 psi ASTM D1002
Tensile Lap Shear Strength Aluminum 2024*, Cured 150°F (66°C)/1h at 180°F (82°C) 4,250 psi ASTM D1002
Tensile Lap Shear Strength Aluminum 2024*, Cured 150°F (66°C)/1h at 250°F (121°C) 3,350 psi ASTM D1002
Tensile Lap Shear Strength Aluminum 2024*, Cured 150°F (66°C)/1h at 300°F (149°C) 2,750 psi ASTM D1002
Tensile Lap Shear Strength Aluminum 2024*, Cured 150°F (66°C)/1h at 350°F (177°C) 2,000 psi ASTM D1002
Tensile Lap Shear Strength Aluminum 2024*, Cured 150°F (66°C)/1h at 400°F (204°C) 1,000 psi ASTM D1002
Tensile Lap Shear Strength Aluminum 2024*, Cured 75°F (25°C)/5h at 77°F (25°C) 900 C ASTM D1002
Tensile Lap Shear Strength Aluminum 2024*, Cured 75°F (25°C)/7h at 77°F (25°C) 2,000 C ASTM D1002
Tensile Lap Shear Strength Aluminum 2024*, Cured 75°F (25°C)/24h at 77°F (25°C) 4,000 P ASTM D1002
Tensile Lap Shear Strength G10 Epoxy-Glass Composite** at 77°F (25°C) 1,500 L ASTM D1002
Compressive Ultimate Strength Cured 150°F (66°C)/1h at -67°F (-55°C) 30,000 psi ASTM D695
Compressive Ultimate Strength Cured 150°F (66°C)/1h at 77°F (25°C) 35,000 psi ASTM D695
Compressive Ultimate Strength Cured 150°F (66°C)/1h at 250°F (121°C) 25,000 psi ASTM D695
Compressive Ultimate Strength Cured 150°F (66°C)/1h at 350°F (177°C) 12,000 psi ASTM D695
Compressive 2% Offset Yield Cured 150°F (66°C)/1h at 77°F (25°C) 14,000 psi ASTM D695
Compressive Modulus Cured 150°F (66°C)/1h at 77°F (25°C) 650,000 psi ASTM D695
Hardness (Shore D) Cured 77°F (25°C)/5 days at 77°F (25°C) 85 - ASTM D2240
T-Peel 32 mil substrates, 15 mil bond thickness at 77°F (25°C) 12 pli ASTM D3167
Glass Transition Temperature (Tg) Cured 1 hour at 200°F (93°C) at -- 120 °C DMA E' onset
CTE Cured 1 hour at 200°F (93°C) Above α 127.3 μm/m/°C -
CTE Cured 1 hour at 200°F (93°C) Below α 60.5 μm/m/°C -
Thermal Conductivity Cured 1 hour at 200°F (93°C) at -- 0.365 W/m·K -

*Aluminum 2024 T3 Clad, Anodized and Primed; ** Blasted 200 grit garnet,
Failure Mode: S: substrate; P: primer; L: delamination; C: cohesive; A: adhesive

Typical Physical Properties

Unless otherwise stated, the data were determined with typical production batches using standard test methods, and the specimens cured for 5 days at 77°F (25°C). These are typical values and should not be used to establish product specifications.

 

Physical Properties

Property Condition Test Temp Value
Tensile lap shear strength, psi (MPa) [ASTM D1002] Aluminum 2024*, Cured 150°F(66°C)/1h -65°F (-55°C) 4,500 P
77°F (25°C) 5,500 P
180°F (82°C) 4,250 P
250°F (121°C) 3,350 P
300°F (149°C) 2,750 P
350°F (177°C) 2,000 P
400°F (204°C) 1,000 P
Aluminum 2024*, Cured 75°F(25°C)/5h 77°F (25°C) 900 C
Tensile lap shear strength, psi (MPa) [ASTM D1002] Aluminum 2024*, Cured 75°F(25°C)/7h 77°F (25°C) 2,000 C
Tensile lap shear strength, psi (MPa) [ASTM D1002] Aluminum 2024*, Cured 75°F(25°C)/24h 77°F (25°C) 4,000 C
Tensile lap shear strength, psi (MPa) [ASTM D1002] G10 Epoxy-Glass Composite** 77°F (25°C) 1,500 L
Compressive Ultimate Strength, psi (MPa) [ASTM D695] Cured 150°F(66°C)/1h -67°F (-55°C) 30,000
77°F (25°C) 35,000
250°F (121°C) 25,000
350°F (177°C) 12,000
Compressive 2% Offset Yield, psi (MPa) [ASTM D695] Cured 150°F(66°C)/1h 77°F (25°C) 14,000
Compressive Modulus, psi (MPa) [ASTM D695] Cured 150°F(66°C)/1h 77°F (25°C) 650,000
Hardness, Shore D [ASTM D2240] Cured 77°F(25°C)/ 5 days 77°F (25°C) 85
T-Peel, pli (N/mm) [ASTM D3167] \*32 mil substrates, 15 mil bond thickness 77°F (25°C) 12
Glass transition temperature (Tg), DMA E' onset, °C Cured 1 hour at 200°F(93°C) -- 120
CTE, µm/m/°C Cured 1 hour at 200°F(93°C) Above α 127.3
Below α 60.5
Thermal Conductivity, W/m K Cured 1 hour at 200°F(93°C) -- 0.365
*Aluminum 2024 T3 Clad, Anodized and Primed; **Blasted 200 grit garnet,
Failure Mode: S: substrate; P: primer; L: delamination; C: cohesive; A: adhesive

 

Lap Shear Strength versus Temperature

 

ARALDITE® 2035 A/B - Typical Physical Properties - 1

 

Compressive Strength versus Temperature

 

ARALDITE® 2035 A/B - Typical Physical Properties - 1

Safety & Health

Safety Information

Keep out of reach of children

Packaging & Availability

Packaging Type
Regional Availability
  • Americas

Storage & Handling

Storage Conditions

ARALDITE® 2035 A Resin and ARALDITE® 2035 B Hardener should be stored in a dry place in their original sealed containers. When stored at a temperature between 2°C and 25°C (36°F and 77°F) the shelf life is 24 months from date of manufacture. When stored at a temperature between 18°C and 40°C (64°F and 104°F), the shelf life of both components is 12 months from date of manufacture. Tightly re-seal all containers immediately after use to prevent contamination.

Storage and Shelf Life Information
  • ARALDITE® 2035 A Resin and ARALDITE® 2035 B Hardener should be stored in a dry place in their original sealed containers.
  • When stored at a temperature between 2°C and 25°C (36°F and 77°F) the shelf life is 24 months from date of manufacture.
  • When stored at a temperature between 18°C and 40°C (64°F and 104°F), the shelf life of both components is 12 months from date of manufacture.
  • Tightly re-seal all containers immediately after use to prevent contamination.

Other

Color
Gray
Physical Properties
ValueUnitsTest Method / Conditions
Gel Time40.0 mmat 25°C, 100g
Viscosity300000.0 cPscPsat 10/s shear rate