LOCTITE 1C
Harmonization Code : 2901.10.00.00 | Acyclic hydrocarbons; Saturated
Main features
- Controlled Two-Part Mixing
- Flexible Cure Scheduling
- Machinable Cured Epoxy
Product Description
LOCTITE EA 1C is a two-part epoxy adhesive and sealant supplied as resin and hardener for bonding, sealing, and repair work. The off-white mixture cures at room temperature after mixing and can also be heat cured when a shorter process is required. A 2.5:1 volume mix ratio and at least 20 minutes of pot life at 25 deg C support controlled preparation and placement. After cure, the material can be machined or sanded, and the cured state is characterized by thermal, dielectric, and mechanical properties. It is suited to assemblies involving metals, many plastics, and wood where a durable epoxy bond or sealed repair is required.
Key features
- Controlled two-part mixing: A 2.5:1 resin-to-hardener volume ratio supports repeatable preparation.
- Flexible cure scheduling: The mixed epoxy cures at room temperature or with documented heat-cure schedules.
- Machinable cured material: The cured epoxy can be machined and sanded for finished repairs and assemblies.
Applications / Suitable for
- Bonding and sealing metals
- Repairing many plastics and wood
- General-purpose epoxy adhesive and sealant assemblies
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Electrical Properties
Additional Information
As-supplied / before-processing properties
Typical values for the product before cure or assembly.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Resin appearance | Off-white | - | Part A, uncured |
| Hardener appearance | Green | - | Part B, uncured |
| Mix ratio | 2.5:1 | volume | Resin:hardener |
| Mix ratio | 100:44 | weight | Resin:hardener |
| Resin viscosity | 120,000 to 350,000 | mPa s | Brookfield RV, spindle 7, 10 rpm, 25 deg C |
| Hardener viscosity | 500,000 to 900,000 | mPa s | Brookfield RV, spindle 7, 2 rpm, 25 deg C |
| Pot life | >=20 | min | 100 g mixed mass at 25 deg C |
After-processing / final-state properties
Typical values for the cured product under the listed conditions.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Handling strength | 3 to 4 | h | Cured at 25 deg C |
| Complete room-temperature cure | 72 | h | Cured at 25 deg C |
| Shore hardness | >=65 | Shore D | Cured 2 h at 60 deg C |
| Glass transition temperature | 87 | deg C | Cured 3 h at 120 deg C |
| Thermal conductivity | 0.77 | W/(m K) | ASTM E1530; cured 3 days at 25 deg C; tested at 100 deg C |
| Lap shear strength | 18.7 | N/mm^2 | Etched aluminum; cured 2 h at 60 deg C; tested at 25 deg C |
| Dielectric breakdown strength | 23.1 | kV/mm | Cured 3 days at 25 deg C |
