Electrical Insulation
Protect windings, coils and electronic assemblies against electrical breakdown, leakage and moisture-driven insulation failure with polysilazane-based dielectric coatings. We don’t promise a universal result — we recommend a specific material for your substrate and operating conditions, confirmed by documentation and a sample.
Recommended products
Proposed starting points — the final recommendation for your case follows technical review.
EK-D06
→
Room-temperature curing insulation coating
Insulation voltage-resistant coating curing at room temperature.
EK-D07
→
Insulating anti-corrosion blue film
High-temperature resistant insulating anti-corrosion blue film with room-temperature curing.
EK-M09
→
Room-temperature-curing high-temperature insulating resin (high-voltage-resistant)
Room-temperature-curing polysilazane-based insulating resin: ≥10⁵ V/mm dielectric strength, -30…430 °C service with 550 °C peaks, >2000 h salt spray.
EK-M10
→
High-toughness silicone-rubber-modified polysilazane resin (insulating, voltage-resistant)
One-component silicone-rubber-modified polysilazane with high toughness (film intact after 180° bending): ≥10⁵ V/mm, 30 kV/mm impulse; clear varnish above 400 °C, above 520 °C with functional powders.
The challenge
Recognise your situation — and what it costs when insulation fails.
Heat, moisture and voltage stress degrade insulation continuously. When a dielectric layer breaks down, the cost is not just recoating — it is short circuits, motor or transformer failure and safety risk.
Conventional organic varnishes have limits under combined heat and electrical stress. Silazane-based systems form a dense dielectric layer designed for longer service in these conditions — the right grade and film build are confirmed during technical review.
Typical situations
Motor and transformer windings — heat and voltage stress
Humid or condensing environments — leakage and tracking
Busbars, coils and connection points
PCBs, sensors and electronic assemblies
How the protection works
Ceramic protection layer
Dense dielectric barrier against leakage and breakdown
Polysilazane layer
Adhesion, curing and surface conversion
Substrate
Copper, aluminium, steel, ceramic or electronic substrate
Requirements
Properties that matter for electrical insulation — availability depends on product grade and is confirmed in the TDS.
Dielectric strength
Dense layer resisting electrical breakdown across the film.
Insulation resistance
Limits leakage current between conductors — per grade.
Adhesion to conductors & cores
Reliable bonding to prepared metal and ceramic substrates.
Moisture resistance
Keeps insulation stable in humid and condensing conditions.
Thermal stability
Where sustained operating heat is part of the environment.
Long-term durability
Designed for extended service — validated on your parts.
Substrates & industries
Where these systems are typically applied. Compatibility is confirmed per grade — not guaranteed generically.
Typical substrates
Copper and aluminium windings
Steel cores and laminations
Ceramic and mineral substrates
Prepared / primed surfaces per guide
Typical industries
Motors, generators and drives
Transformers and power distribution
Energy and utilities
Electronics and control equipment
FAQ
Common questions about electrical insulation coating projects.
Can the coating be applied over existing insulation or varnish?
Surface preparation and compatibility requirements are defined in the Application Guide. The condition of your parts is assessed during technical review.
How is this different from conventional insulating varnish?
Silazane-based systems form a dense ceramic-like dielectric layer designed for combined heat and voltage stress. Comparative data for a specific grade is available on request.
How much insulation performance can I expect?
Dielectric strength and insulation resistance depend on the grade, film build and application quality — we validate them on your parts through sample testing rather than promising generic numbers.
Which product should I start with?
Send your substrate, operating conditions and process — our team will recommend a grade and provide the TDS. Custom formulation is possible subject to technical review.
Can I test before committing to volume?
Yes — sample support is available for qualified B2B projects after a short technical review.
What about MOQ and pricing?
Both depend on the grade, packaging and volume — include your estimated quantity in the request and a quotation follows the technical review.
Send request
From first enquiry to qualified bulk supply — send your requirements below.
01
Send requirement
Application, substrate and performance target.
02
Get recommendation
Suitable material family and product grade.
03
Receive TDS/SDS, catalog & sample
Documentation and sample for evaluation.
04
Test material
Validate on your substrate and process.
05
Confirm & bulk supply
Specification agreement and ongoing supply.
About electrical insulation
Electrical insulation coatings protect windings, coils and electronic assemblies against leakage, breakdown and moisture in demanding operating environments. Polysilazane-based systems form a dense dielectric layer for sustained heat and voltage stress.
Product selection depends on the substrate, operating conditions and application process. Technical data sheets, application guides and sample support are provided on request for each product grade.