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United Adhesives EP1611

United Adhesives EP1611 is a flexible epoxy adhesive.

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

Application Area: Aerospace Applications, Connectors, Electronic Components, Housing, Semiconductors, Telecommunications Applications

Compatible Substrates & Surfaces: Ceramic, Metal, Plastics

Cure Method: Heat Cure

Technical Data Sheet
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Identification & Functionality

Features & Benefits

Characteristics

Characteristics EP1611 is a flexible epoxy adhesive for sealing or encapsulating electronic devices. It is a twocomponent, non-slump, rubber-toughened formulation that cures at elevated temperature to provide strong bonding to various plastics, ceramics and metals. The flexibility reduces thermal stress and provides better thermal cycle performances. EP1611 is dispensable.

Special Features & Benefits
  • Flexibility for stress reduction
  • Fast cure and room temperature curable
  • Flowable for potting / encapsulation
  • Strong fracture toughness
  • Strong bonding to various substrates
  • Low bleeding, low volatile

Applications & Uses

Compatible Substrates & Surfaces
Cure Method
Typical Applications
  • Bonding / sealing of electronic components
  • Encapsulate parts, cavities
  • Bonding of plastics, ceramics and metals
  • Attach PCBs, base plates, components
  • Seal lids, covers, housings, connectors
  • Vibration dampening
  • Thermal stress coupling
  • Aerospace & Automotive electronics
  • Semiconductor & Telecommunications
Processing Instruction
  • Only components A and B with the same lot number may be processed together! For the package in a container (not in a cartridge), to ensure homogeneity of the material, the components must be stirred thoroughly before they are removed or processed in order to uniformly disperse any fillers that might have settled during storage. For potting applications, it is recommended to warm the parts to ~60°C, and then do potting. Any possible air bubbles in mixing or potting process can be removed by vacuum.
  • We recommend running preliminary tests to optimize conditions for the particular application. Comprehensive processing instructions can be obtained by contacting directly to United Adhesives, Inc.

Properties

Color
Typical Properties
ValueUnitsTest Method / Conditions
Density (As Mixed)1.2Gram /ccASTM D792
Mixing Ratio (A:B)1:1By volume-
Viscosity (As Mixed At 25°)60000.0cpsASTM D2196
Typical Cured Properties
ValueUnitsTest Method / Conditions
Adhesion (Al/Ai Lap Shear)min. 1500PsiASTM D1002
Coefficient Of Thermal Expansion150.0ppm/°CIPC-TM-650
Cure Time (25°C)10 - 12hrDurometer
Cure Time (85°C)60.0minDurometer
Dielectric Constant (100 Hz)4.0-ASTM D150
Dielectric Strengthmin. 400Volt/mil ACASTM D149
Elongation50.0%ASTM D638
Hardness60.0Shore AASTM D2240
Pot/Work Life (After Mixed Up, 25°C)0.5hrViscosity double
Temperature Usage-80 to 150°CTGA
Tensile Strength8.0MpaASTM D638
Volume Resistivity (24°C)min. 10E+12Ohm-cmASTM D257

Safety & Health

Safety

General hygiene regulations should be observed.

Storage & Handling

Storage

EP1611 has a shelf life of at least 12 months when stored in ambient in the originally sealed container. The 'Best use before end' date of each batch appears on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.