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Products
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SUMIMAC® ECR/ECH has excellent workability and safety and is widely used for electrical insulation of ignition coils, relays and sensor applications. Plants
Laboratories
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Features
Insulated filling material for ignition coils
- Separated type liquid resin: Epoxy / hardener
- Low viscosity and good deforming performance for coil impregnation and excellent withstanding voltage
- Easy operation with good mixing performance
- Good storage stability
Insulated encapsulation material for relays
(automotive, communication and industrial equipment)
- Premix type liquid resin: epoxy / hardener
- Good heat resistance for reflow soldering
- Good adhesion with phosphorus bronze terminals
- Low cure temperature grade (100°C) is available.
- Separated type liquid resin: epoxy / hardener
- Excellent electrical insulation properties
- Good storage stability
Applications
Electrical and Electronic Equipment
Electronic Components
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Application example: ignition coil impregnation 
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Application example: relay encapsulation 
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Specifications
SUMIMAC® ECR series products line-up (Premix-type liquid resin: Epoxy/hardener)
| ECR-9250K | ECR-9185K | ECR-9240K | ||
|---|---|---|---|---|
| Application | Relay | Relay | Sensor | |
| Advantage | Heat resistance | ● | ||
| Good adhesive strength | ● | ● | ● | |
| High strength | ● | |||
| Viscosity | Pa·s, 25°C | 35 | 46 | 7 |
| Specific gravity | - , 25°C | - | 1.4 | - |
| Color of cured material | Black | Black | Black | |
| Standard condition for curing | 100°C. 60min. or 120°C. 30min. | 100°C. 60min. or 120°C. 30min. | 120°C. 60min. | |
Remark
- The data given above are not guaranteed values.
SUMIMAC® ECR, ECH series products line-up (Separated-type liquid resin: epoxy/hardener)
| ECR-2222K + ECH-222G | ||
|---|---|---|
| Application | Ignition coil package | |
| Advantage | Good impregnation ability | ● |
| Low temp. curing | ||
| Flame resistance | ||
| Mixing ratio (resin/hardener) | 100 / 100 | |
| Viscosity of mixture | Pa·s, 25°C | 0.5 / 60°C. |
| Specific gravity of mixture | -, 25°C | 1.7 |
| Color of cured material | Black | |
| Standard condition for curing | 100°. 2hr + 140°C. 2hr | |
Remark
- The data given above are not guaranteed values.
Examples
Topics More
- 2025/10/16 Products Announcement of the Brand Name and Logo for Ultra-Low Monomer Water-Soluble Phenolic Resin: AQNOA™
- 2025/09/10 Products Expansion of Product Lineup of Tribological (Low Friction and Low Wear) and High-Heat-Resistant Phenolic Resin Molding Compounds
- 2025/06/16 Products Commercialization of the World’s First Biomass-Derived Solid Novolac-Type Lignin-Modified Phenolic Resin
- 2024/12/26 Products Development of SUMIKON® AM-3800 - a Diallyl Phthalate (DAP) molding compound for high voltage (800V) and high heat resistance
- 2024/10/18 Products SNC Industrial Laminates Sdn. Bhd. (Malaysia) Expansion of Liquid Phenolic Resin Supply
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