High temperature resistant thermal conductive coating EK-D13

EK-D13 Introduction:

EK-D13 is a two-component coating formulated with high-thermal-conductivity polysilazane as a binder, combined with graphene, aluminum silver powder, plastic fillers, and a compatibilizer.

After medium-temperature curing, this coating transforms into a polysilazane-graphene composite coating. The polysilazane oligomers, rich in Si-H bonds, form a dense, covalently bonded coating with the filler, imparting excellent corrosion resistance, thermal stability, and thermal conductivity to the thermally conductive filler. It withstands long-term use at 500°C without cracking or peeling.

Applicable substrates:

1. Heat dissipation and heat conduction for high-temperature devices and sensors.
2. Surfaces of metallurgical equipment, molds, and casting equipment.
3. Electric heating elements, tanks, boxes, heat exchangers, and radiators.
4. Small appliances, kitchenware (fire covers, rice cookers), etc.
5. High-temperature components in the chemical and metallurgical industries.
6. Other applications requiring thermal management.
7.Aluminum, 310S stainless steel, 316 stainless steel and other high temperature alloy steel materials.

Applicable temperature:

The maximum temperature resistance is 800°C, and it can be used for long periods of time at 500°C.
It can also withstand long-term erosion in high-temperature airflow at 500°C.
The coating’s temperature resistance will vary depending on the substrate’s heat resistance
(Note: Product performance may vary depending on the substrate).

Product parameters:

Basic construction parameters：

Special Note:

This product is a two-component, heat-curing product. The mixed coating should be used within 12 hours. During extended application periods, tools should be cleaned to prevent caking. The dry film thickness should not exceed 35µm; otherwise, coating performance may be compromised.

Standard Application Procedure：

Surface Cleaning → Roughening → Cleaning and Blowing → EK-D13 Treatment → Curing

Process Description:

1. Roughening: Before coating, polish or sandblast the substrate surface to remove rust, dust, and dirt adhering to the surface. Roughening significantly affects the coating quality. Ideally, Sa2.5 and St3 grades should be free of scale (GB/T 30790.4-2014), so please pay close attention.
2. Cleaning: Use a dedicated cleaning agent or degreasing agent to remove any remaining oil, dust, and other contaminants on the roughened surface.
3. Substrate Drying: Before coating, ensure the substrate surface is dry and clean.
4. Paint Mixing: This product has two components. Take an appropriate amount of paint according to the ratio and stir thoroughly to mix evenly. Filter through 180 mesh for later use.
5. Paint Application: Laboratory spraying with a 1.0-caliber spray gun provides optimal appearance and uniformity. The cured coating exhibits a certain degree of hydrophobicity and oleophobicity, so re-application is not recommended.
6. Curing: Air curing temperature resistance is 800℃, and long-term use temperature is 500℃ (nitrogen curing conditions can be obtained by consultation).

Product Storage:

1. Storage must comply with national regulations. The storage environment should be dry, cool, well-ventilated, and away from heat and ignition sources. The packaging container must be kept tightly closed and carefully stored.
2. The storage temperature should be maintained between 5°C and 30°C. The shelf life is 6 months.
3. Opened but unused paint must be sealed and stored.
4. Mixed but unused paint cannot be recycled and must be disposed of in accordance with local regulations.
5. Products that have exceeded their expiration date may only be used after passing testing.

Disclaimer:

The information provided above is based solely on our knowledge gained through laboratory and practical experience. Product usage is generally beyond our control, so we can only guarantee the quality of the product itself. Products may be modified to comply with local regulations, and we reserve the right to modify this specification without prior notice. Users should consult Quartz Master New Materials for specific guidance on product suitability based on their needs and specific applications.