Organic polysilazane-based binder for coating systems EK-S02

EK-S02 Introduction:

The main reactions involved in curing are the hydrolysis and oxidation of Si-NH-Si. Simultaneously, the Si-NH-Si bond readily reacts with the -OH groups on the substrate surface, resulting in good adhesion to the substrate. Adding an appropriate catalyst to the resin further promotes the Si-H and Si-NH-Si reactions.

After curing,it forms a covalent bond with the substrate, chemically bonding it to significantly enhance the coating’s mechanical strength.

Applicable substrates:

Carbon steel, stainless steel, cast iron, aluminum alloy, titanium alloy, high-temperature alloy steel, glass-ceramic panels, ceramics, cement, and other materials.

Applicable temperature:

Suitable for outdoor use under temperatures below 400°C and short-term exposure to temperatures up to 600°C.
The coating’s temperature resistance will vary depending on the substrate’s heat resistance, including resistance to thermal shock and cold shock.
(Note: Different substrates may have different product specifications).

Product parameters:

Basic construction parameters：

Special Note:

This product is a one-component, self-curing product. Once opened, use the coating within 4 hours. During extended application periods, tools should be cleaned to prevent caking. It is recommended to apply the coating in one coat, with a dry film thickness of no more than 50µm. Otherwise, coating performance may be compromised.

Standard Application Procedure：

Surface Cleaning → Roughening → Cleaning and Blowing → EK-S02 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 is a double-component product. Filter through a 120-mesh filter as needed.
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: After spraying, the surface should be dry for 1 hour, the touch should be dry for more than 2 hours, and the actual drying time should be more than 24 hours. It can also be cured quickly by heating (keeping warm at 140℃ for 20 minutes).

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.