Insulation systems
Our insulation systems for coils and bars
Coral Rich-Flex®
For coils up to 15KV
Coral®Rich-Flex™ is our bestselling Resin Rich (stage B) system for coils and bars.
Insulation class F, with fully cured and pressed slot portions.
Overhangs remain flexible, making rewinding easy.
Perfect for high voltage motors, small generators and hydro generator coils.
Ideal for demanding rewinding tasks due to its flexibility.
Coral Rich-Cured®
For coils and bars up to 15KV
Coral®Rich-Cured™ is our bestselling Resin Rich (stage B) system for bars and coils.
In addition to Coral Rich-Flex, Coral Resin Rich Cured is fully pressed in the slot portion, and in the overhangs using special fixtures making sure that there is no air voids and as such an ideal insulation, with ideal Partial Discharge levels.
Insulation class F with fully cured and pressed slot portions using special fixtures.
Ensures no air voids in the OH portion.
Ideal for power and hydro generators with all types of bars.
Perfect for applications requiring high reliability in coil insulation.
Coral Seal®
For low & medium voltage single bar
Coral®Seal™ is a single coil/bar VPI system with epoxy Anhydride class F insulation.
Coils are fully cured using a standard VPI system for precise dimensional accuracy.
Special fixtures ensure minimal voids in both straight and overhang parts.
Ideal for medium voltage motors, generators, turbo and hydro generator coils and bars.
Provides reliable insulation for demanding generator and motor applications.
Coral Hybrid Seal®
For single bar VPI systems up to 24KV
It is a single coil/bar VPI system with epoxy Anhydride class F insulation.
Coils/bars are fully cured using a standard VPI system for dimensional perfection.
Special fixtures ensure no voids in both straight and overhang parts.
Designed for high voltage turbo and hydro generator coils and bars.
Provides top-tier insulation reliability for high-demand generator applications.
Coral Green E®
For green coils
CoralGreenT® features an advanced insulation system for traction motors.
Globally impregnated with silicon for enhanced durability.
Provides excellent insulation performance in demanding traction motor environments.
Designed for long-lasting reliability and efficiency.
Ideal for traction motor applications requiring superior insulation solutions.
Coral Green T®
For green coils
CoralGreenT® is an insulation system designed for traction motors.
Globally impregnated with silicon for enhanced insulation protection.
Provides high durability and performance in traction motor applications.
Ideal for use in demanding environments requiring robust insulation.
Ensures long-lasting efficiency and reliability in traction motors.
Coral Green H™
For green coils
Coral®GreenH™ features an insulation system impregnated with Polyester/Polyester-imide class H resins.
Designed for high-performance insulation in demanding applications.
Provides enhanced thermal stability and durability.
Ideal for use in environments requiring Class H insulation standards.
Ensures long-lasting protection and efficiency for critical electrical components.
Matrix Products to Insulation systems
| Insulation Systems | Voltage | RR (StageB) systems | Single Coil / Bar VPI | Green Coils | ||||
| Coral Rich Flex | Coral Rich Cured | Coral Seal | Coral Hybrid seal | Coral Green E | Coral Green T | Coral Green H | ||
| Motor coils repair | up to 6.6 KV | X | X | |||||
| Motor Coils for Global VPI | up to 6.6 KV | X | X | X | ||||
| Generator coils repair | up to 6.6 KV | X | X | |||||
| Generator coils global VPI | up to 6.6 KV | X | X | X | ||||
| Generator and Hydro generator coils repair | 6.6 to 15 KV | X | X | X | ||||
| Generator coils global VPI | 6.6 to 15 KV | X | X | |||||
| Hydro Bars | up to 15 KV | X | X | X | ||||
| Hydro Bars | 15 to 24 KV | X | ||||||
| Turbo Bars | up to 15 KV | X | X | X | ||||
| Turbo Bars | 15 to 24 KV | X | ||||||
| Traction coils for global VPI | X | |||||||