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.
FORM
One-component resin
APPEARANCE
Light yellow to colorless transparent liquid
CURING
Ambient / 180 °C · ~12 h (ambient) / ~0.5 h (180 °C)
Documents
TDS · SDS
The material
How this grade works and where it fits — exact parameters are defined in the TDS.
Polysilazane offers excellent temperature resistance and electrical insulation. This product is a polysilazane modified by a special process and is one-component. The modified polysilazane exhibits excellent toughness, hardness, adhesion, heat resistance with resistance to yellowing, and high-voltage endurance. Adhesion is outstanding — Grade 0 — and the paint film remains intact after 180° bending. The unfilled clear varnish withstands temperatures above 400 °C and voltages above 10 kV; with functional powders it withstands above 520 °C without yellowing, greatly extending the performance and application range of polysilazane.
The room-temperature-curing resin can also be used on polyimide film and leather coatings, offering excellent adhesion, bending and flex resistance, and hydrophobic anti-soiling performance.
Choose this grade when insulation must survive bending: a high-toughness one-component resin whose film stays intact after 180° bending, with ≥10⁵ V/mm dielectric strength and 30 kV/mm impulse resistance. Clear varnish serves above 400 °C; versions with functional powders above 520 °C. Suited to cables, PI film, leather and metal profiles.
Final fit is confirmed during technical review — send your substrate, operating environment and application process, and the team will confirm this grade or point you to a closer one.
Suitable for
Industrial applications within the TDS parameters
Metal, glass, ceramic and stone substrates — per grade
Professional application and curing processes
Not intended for
Consumer or DIY use — industrial B2B supply only
Conditions outside the parameters defined in the TDS
Food-contact or medical use unless explicitly confirmed
Applications
Recommended application areas for this grade, based on its TDS. Application fit is confirmed during technical review.
Recommended applications for this grade:
Technical data
Key values from this grade's TDS. The complete measured data set follows below; the official document is available on request.
PROPERTY
TYPICAL VALUE
NOTES
Solid content
>50%
—
Viscosity
TBC in TDS
—
Max service temperature
-30 to 430 °C service · ≥500 °C peak
Depends on cure & film build
Curing conditions
Ambient / 180 °C · ~12 h (ambient) / ~0.5 h (180 °C)
Per application process
Recommended film thickness
20–150 µm
—
Shelf life
6 months (storage at 5–30 °C)
Storage conditions apply
Service temperature. Suitable for outdoor duty at ambient temperature; resin versions adjusted for hardness and toughness withstand high-temperature duty up to 500 °C. The coating's temperature resistance varies according to the temperature capability of the substrate (note: the product supplied differs according to the substrate).
Coating Film Properties
Product state: One-component
Color and appearance: Light yellow to colorless transparent liquid — GB-T 1721-79
Solids content ((120±2) °C): >50% — GB/T 1725-2007
Density (g/mL): 0.86±0.02 — GB/T 6750-2007
Hardness (pencil): ~5H — GB/T 6739-2006
Adhesion: Grade 0 (cross-cut) — GB-T 9286-1998
Neutral salt spray resistance: >2000 h — GB-T 10125-2021
Water contact angle: 105°–110° — GB/T 26490-2011
Artificial weathering resistance: 30 d: no rusting, no chalking, no cracking, no discoloration — GB-T 1865-2009
Dielectric strength (V/mm): ≥10⁵ — ASTM D149
Dielectric constant: 3.0–3.8 — GB/T 1409-2006
Impulse voltage resistance (kV/mm): 30 — GB/T 1408.3-2016
Resistivity (Ω·m): ≥10¹³ — GB/T 35856-2018
Basic Application Parameters
Coating solids content (%): >50
Volatility: Solvent readily volatile
Theoretical coverage (m²/kg): 6–8
Curing temperature (°C): Ambient / 180
Dry film thickness (µm): 20–150
Curing time (h): ~12 (ambient) / ~0.5 (at 180 °C)
Working time (pot life) (h): 2–4
Maximum transient temperature resistance (°C): ≥500
Thinner: Butyl esters, xylene, ethers, etc.
Recommended service temperature (°C): -30 to 430
Flash point (°C): <22 (solvent flash point)
Storage (°C): 0–30
Data above is taken from the manufacturer’s TDS. Request the official document via the documents section below.
Substrates & storage
Compatibility and handling essentials — confirmed per grade in the TDS and SDS.
Suitable substrates
Steel and stainless steel
Aluminium and other metals
Glass and ceramics
Stone and mineral surfaces
Leather, cables, flexible PI (polyimide) film and similar materials, as well as stainless steel and aluminium profiles. Note: The coating formulation differs with the substrate; within a certain range it can be adjusted and matched to the substrate and its service conditions.
Storage, packaging & transport
Store in accordance with national regulations. The storage environment should be dry, cool and well ventilated, away from heat and ignition sources. Packaging containers must be kept tightly closed and placed with care.
The storage temperature must be maintained between 5 °C and 30 °C; the shelf life is 6 months.
Opened but unused coating must be stored with the container lid tightly sealed.
Mixed coating that is not used up cannot be reclaimed and should be disposed of in accordance with local regulations.
Product beyond its shelf life may be used only after testing confirms it still meets specification.
Packaging
1 kg / 5 kg / 25 kg (grade-dependent)
Transport classification
Per SDS
Application process
General guidance — exact parameters are provided in the TDS and Application Guide.
01
Surface preparation
Clean, degrease and prepare the substrate.
02
Application
Spray, dip or wipe depending on grade.
03
Curing
Cure per the TDS conditions.
04
Quality control
Verify film build and adhesion.
Standard process: Surface cleaning → Abrasive roughening → Cleaning and blow-off → EK-M10 spray application → Curing
Abrasive roughening. Before coating, sand or grit-blast the substrate surface to remove rust, dust, dirt and other deposits adhering to the surface to be treated. Roughening has a considerable influence on coating performance: Sa2.5 is optimal and St3 with no mill scale is the minimum (GB/T 30790.4-2014), so pay close attention to this step.
Cleaning. Remove residual oil, dust and other contamination from the roughened surface with a dedicated cleaner or degreaser.
Substrate drying. Before coating, ensure the substrate surface is dry and clean.
Coating preparation. As printed in the TDS: dilute component A with 20–30% solvent, slowly add component B while stirring, mix for 5–10 minutes until uniform, let stand for 10 minutes, then filter through a 120-mesh screen before spraying. (Note: the sheet elsewhere describes the product as one-component — the A/B mixing step is being confirmed with the manufacturer.)
Coating application. For laboratory spray application, a spray gun with a 1.0 orifice gives better appearance and uniformity. The cured coating is somewhat hydrophobic and oleophobic, so repeated recoating is not recommended.
Curing. After spraying, for room-temperature curing allow surface drying in 1 hour, touch-dry in more than 2 hours and dry-through in more than 24 hours; rapid heat curing is also possible (180 °C for 20 minutes).
Note: This product is a one-component curing product; once the container is opened, use the coating within 2–4 hours. During longer breaks in application, clean the application tools thoroughly to prevent them from setting up. Application in a single spray pass is recommended, with a dry film thickness not exceeding 150 µm.
More grades
Browse the full catalogue by category, or send your requirements — we will recommend a grade for your case.
Organic Polysilazane Resins
→
Inorganic Polysilazane / Ceramic Precursors
→
Modified Polysilazane Coatings
→
Ready-to-use Ceramic Coatings
→
High-temperature Ceramic Coatings
→
Electrical Insulation Coatings
→
Fluorosilanes & Surface Modifiers
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Adhesives
→
Additives
→
Polycarbosilane
→
SiC Fibers
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Ordering & logistics
Common questions from procurement and engineering teams.
What packaging formats are available?
Standard packaging is 1 kg, 5 kg and 25 kg containers, grade-dependent. Other formats, minimum order quantity, lead times, shipping terms and stock availability are confirmed on request.
What is the minimum order quantity for this product?
MOQ depends on the packaging format — confirmed by our team for your grade and volume.
What happens after I send an inquiry?
Our technical team reviews your requirement and responds with a recommendation, the relevant documents and next steps.
How do I get a quotation?
Include your estimated volume and application in the inquiry — a quotation follows the technical review.
How is the product shipped?
Packaging, transport classification and shipping details are provided per SDS — request packaging and shipping information with your inquiry.