LOCTITE CAT 15
Harmonization Code : 8529.90 | Parts solely or principally used for TV, radio, and transmission

Main features
- Liquid Polyamide Epoxy Hardener
- Two-Hour Pot Life
- 80 deg C Accelerated Cure
Product Description
LOCTITE® CAT 15™ is a liquid polyamide-based epoxy hardener designed for use with compatible LOCTITE STYCAST® epoxy encapsulation, casting and potting systems. The hardener provides room-temperature curing capability, adjustable flexibility, long working life and excellent chemical resistance. Its low-toxicity profile and wide mixing ratio tolerance make it suitable for electrical insulation, electronic encapsulation and industrial composite applications where flexible, durable epoxy systems are required.
Key Features & Benefits
- Polyamide epoxy hardener for epoxy resin systems.
- Room-temperature or accelerated heat cure capability.
- Provides flexible and durable cured systems.
- Long working and pot life.
- Good chemical and environmental resistance.
- Suitable for potting, encapsulation and casting applications.
- Compatible with electronic and electrical insulation systems.
Recommended Applications
- Electronic component encapsulation.
- Electrical potting and insulation systems.
- Epoxy casting and composite fabrication.
- Industrial maintenance and repair compounds.
- Applications requiring flexible epoxy performance.
TDS, SDS & Technical Documents
Technical Specifications
No specifications available.
Additional Information
As-Supplied / Before-Processing Properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Product Type | Epoxy Hardener | — | LOCTITE CAT 15 CLR |
| Technology | Polyamide Cure System | — | Epoxy curing agent |
| Appearance | Amber Liquid | — | As supplied |
| Odor | Odorless | — | Ambient conditions |
| Density | 0.98 | g/cm³ | 20°C |
| pH | 10 | — | 100% product at 20°C |
| Flash Point | >150 | °C | Closed cup |
| Initial Boiling Point | >200 | °C | Typical value |
| VOC Content | <3 | % | 2010/75/EC |
After-Processing / Final-State Properties
| Property | Value | Unit | Condition / Method |
|---|---|---|---|
| Pot Life (Reference Data) | 2 | hours | 100 g mass at 25°C |
| Recommended Room Temperature Cure | 16 - 24 | hours | Typical epoxy system cure |
| Accelerated Heat Cure | 2 | hours | 80°C |
| Continuous Service Temperature | 90 | °C | Typical cured system |
| Intermittent Service Temperature | 120 | °C | Typical cured system |
| Skin Sensitization Classification | Category 1 | — | H317 |
| Skin Corrosion Classification | Category 1B | — | H314 |
| Environmental Classification | Aquatic Chronic 2 | — | H411 |
| Bioaccumulation Concern | vPvB Substance Present | — | Contains hydrogenated terphenyl |





















