EK-M15
Ceramic thermal-insulation coating
Polysilazane ceramic thermal-insulation coating for 300–500 °C service; also used in structural adhesive systems.
FORM
One-component coating
APPEARANCE
White opaque coating
CURING
Ambient / 60 · >12 / <1 h
Documents
TDS · SDS
Adhesives (structural)
The material
How this grade works and where it fits — exact parameters are defined in the TDS.
EK-M15 thermal insulation coating uses polysilazane as the binder, to which a proportion of thermal-insulating powder, hollow glass microspheres and ceramic microspheres is added; after stirring and dispersion, a coating with both heat-insulating and heat-retaining functions is obtained. It offers high temperature resistance and low thermal conductivity: it withstands 300-500 °C, has a thermal conductivity of 0.03-0.05 W/m.K, and at a thickness of 2-4 mm can block 40% of the heating temperature. It is suitable for critical equipment in aerospace, metallurgy and electric power, petrochemical, and transportation applications.
Polysilazane possesses excellent temperature resistance and electrical insulation properties; the thermal insulation coating produced by polysilazane modification exhibits good hydrophobic, moisture-proof and waterproof performance, temperature resistance, and good electrical insulation.
The product is supplied as a colorless, transparent two-component (A/B) system. Users may add a quantity of color paste as required to enhance performance.
The product can be applied in fields such as electronic components, printed circuit boards, wound inductors and motors, at thicknesses of up to 2-5 mm.
Choose this grade when the goal is keeping heat in or out rather than surface protection alone: thermal-insulation coating filled with hollow glass microspheres, room-temperature or 60 °C cure, >2000 h salt spray.
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
>40%
—
Viscosity
TBC in TDS
—
Max service temperature
-30 to 300 °C service · <500 °C peak
Depends on cure & film build
Curing conditions
Ambient / 60 · >12 / <1 h
Per application process
Recommended film thickness
20–3000 µm
—
Shelf life
1–2 years (storage at 5–30 °C)
Storage conditions apply
Coating Film Properties
Adhesive state: Two-component (A, B)
Color and appearance: White opaque coating — GB-T 1721-79
Solids content ((120±2) °C): >40% — GB/T 1725-2007
A:B mixing ratio (by mass): A:B=14:1
Density (g/mL): 0.5±0.02 — GB/T 6750-2007
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
Temperature resistance: 300–500 °C
Thermal conductivity (W/m.K): 0.03–0.05
Withstand voltage: >3000
Resistivity (Ωm): ≥10¹³ — GB/T 35856-2018
Basic Application Parameters
Coating solids content (%): >40
Theoretical coverage (m²/kg): 8–15
Dry film thickness (µm): 20–3000
Working time (pot life) (h): >3 h
Diluent: Butyl esters, xylene, ethers, etc.
Flash point (°C): <22 (solvent flash point)
Volatility: Solvent evaporates readily
Curing temperature (°C): Ambient / 60
Curing time (h): >12 / <1
Instantaneous maximum temperature resistance (°C): <500
Recommended service temperature (°C): -30 to 300
Warehouse 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
Substrate compatibility for a specific grade is confirmed in the TDS.
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 sealed and placed with care.
The storage temperature should be maintained between 5 °C and 30 °C; the shelf life is 1-2 years.
Opened, partially used coating must be stored with the container lid tightly resealed.
Mixed coating that has not been used up cannot be reclaimed; dispose of it in accordance with local regulations.
Product past its shelf life may be used only after testing confirms it conforms to 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 → mixing and stirring of the A/B components → spray application → curing
Cleaning. Use a dedicated cleaning agent or degreaser to remove oil, dust and other residues remaining on the abrasively roughened surface.
Substrate drying. Before coating, ensure that the substrate surface is dry and clean.
Coating mixing. The product is a two-component (A/B) system. Slowly add component B while stirring, and stir for 2 minutes until fully homogeneous. The stirring speed should be slow to avoid entraining a large amount of air bubbles.
Application. Brush or spray the mixed coating onto the workpiece surface or the interior of the container.
Curing. Cure at room temperature, or bake-cure at a low temperature of 50-60 °C.
More grades
Browse the full catalogue by category, or send your requirements — we will recommend a grade for your case.
Organic Polysilazane Resins
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Inorganic Polysilazane / Ceramic Precursors
→
Modified Polysilazane Coatings
→
Ready-to-use Ceramic Coatings
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High-temperature Ceramic Coatings
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Electrical Insulation Coatings
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Fluorosilanes & Surface Modifiers
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Adhesives
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Additives
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Polycarbosilane
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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.