Loctite E-30CL EPOXY ADHESIVE

Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

Loctite E-30CL EPOXY ADHESIVE

Main features

  • Minimally Shrinking Epoxy Bondline
  • Two-Part Ambient-Cure Processing
  • Adhesion to Glass

Product Description

LOCTITE® EA E-30CL™ Epoxy Adhesive is a low-viscosity, two-component industrial epoxy for bonding, small potting, staking, and laminating applications. The resin and amine hardener mix at a 2:1 ratio by volume and cure at room temperature with minimal shrinkage to form an ultra-clear, colorless-to-slightly-yellow bondline. The cured material combines structural and electrical insulating properties with resistance to a range of chemicals and solvents. Documented bonding substrates include glass, optical fibers, ceramics, metals, and many rigid plastics.

Key features

  • Ultra-clear cured bondline: Cures with minimal shrinkage to a colorless-to-slightly-yellow solid for applications where optical clarity is required.
  • Low-viscosity, self-leveling processing: The mixed adhesive is free-flowing and self-leveling, with a 30-minute working time at 25°C.
  • Structural and electrical performance: The cured epoxy provides a typical tensile strength of 55 N/mm² and dielectric breakdown strength of 20 kV/mm.

Applications / Suitable for

  • Bonding applications requiring optical clarity
  • Small potting applications
  • Component staking
  • Laminating applications
  • Bonding glass, optical fibers, ceramics, metals, and many rigid plastics
Product Family

LOCTITE E-30CL

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Clear to slight yellow
Chemistry Type
Resin - Epoxy, Hardener - Amine
Component System
Describes the number of components that must be supplied, mixed, or activated before application or cure.
two component
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
2:1
Pot Life
Pot life is the amount of time it takes for the viscosity of a material to double (or quadruple for lower viscosity materials) in room temperature after a material is mixed. It is closely related to work life but it is not application dependent, less precise and more of a general indication of how fast a system is going to cure.
30 minutes
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
1.07
Physical Properties
Tack-Free Time
160 minutes

Additional Information

Technical properties

As-supplied / before-processing properties

Typical properties of the resin, hardener, and mixed adhesive before cure. Values are not intended for preparing specifications.

Property Value Unit Method / condition
Components Two — Epoxy resin and amine hardener; requires mixing
Appearance Clear, colorless to slightly yellowish liquid — Resin and hardener
Mix ratio by volume 2:1 — Resin:hardener
Mix ratio by weight 100:46 — Resin:hardener
Resin viscosity 10,500 mPa·s (cP) Brookfield RVT, spindle 6, 20 rpm, 25°C
Hardener viscosity 2,250 mPa·s (cP) Brookfield RVT, spindle 5, 20 rpm, 25°C
Mixed specific gravity 1.07 — At 25°C
Working time 30 minutes At 25°C after mixing
Technical properties

After-processing / final-state properties

Typical properties of the cured adhesive. Bulk properties were measured after curing for 5 days at 25°C; adhesive-strength conditions are identified separately. Values are not intended for preparing specifications.

Property Value Unit Method / condition
Appearance Colorless to slightly yellowish solid — Mixed and cured material
Shore hardness 80–90 Shore D ISO 868; cured 5 days at 25°C
Glass transition temperature 61 °C ASTM E1640; cured 5 days at 25°C
Tensile strength 55 (8,000) N/mm² (psi) ISO 527-2; cured 5 days at 25°C
Elongation 8 % ISO 527-2; cured 5 days at 25°C
Dielectric breakdown strength 20 kV/mm IEC 60243-1; cured 5 days at 25°C
Lap shear strength on grit-blasted steel 21 (3,100) N/mm² (psi) Cured 5 days at 22°C
Block shear strength on glass 24 (3,540) N/mm² (psi) ISO 13445; cured 5 days at 22°C

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