KEY-231 Hejie · PFAS-free Anti-Fingerprint Nanocoating

KEY-231 Hejie · PFAS-free Anti-Fingerprint Nanocoating

Product Highlights

Water contact angle ≥115°

Rolling angle <10°

Compliant with RoHS and REACH environmental directives

Suitable for various adhesion processes

Waterproof, moisture-proof and corrosion-resistant

Reduce dust adhesion

Wear-resistant

Suitable for glass and metal surfaces

Strong adhesion


Product Description

  • KEY-231 Hejie · PFAS-free anti-fingerprint nanocoating is a high-tech, environmentally friendly functional coating material prepared based on a sol-gel process.

  • Through organic-inorganic combination technology, it can form an ultra-thin protective film layer with a thickness of only 5-10μm on the surface of the substrate, and all performance indicators of the product strictly meet the requirements of national environmental standards.

  • Compared to traditional electrophoretic treatment processes, KEY-231 coating has the core advantages of long-lasting easy cleaning and high-strength corrosion resistance, while also having excellent wear and scratch resistance. While playing a protective role, it can effectively maintain the original heat dissipation efficiency of the substrate, enhance the gloss and texture of the metal surface, and ensure that the surface remains clean and bright for a long time.



Product Features

  • It is compatible with non-chromiumized light metal substrates and can be used directly as a base protective coating.

  • It possesses excellent corrosion resistance and oxidation resistance, providing long-lasting protection for the substrate.

  • The surface is stain-resistant and easy to clean, dust does not easily adhere to it, and it has excellent scratch resistance.

  • It supports customized surface coloring and decoration, and can accurately present a metallic appearance.

  • Excellent dimensional accuracy control, meeting customers' stringent process standards in multiple dimensions.

  • It combines high-temperature protection with resistance to sudden temperature changes, making it suitable for complex temperature-changing working conditions.

  • The amount of paint used per unit area is only about 1/10 of that of conventional paint, which greatly reduces the overall cost of painting.


Test data

KEY-231 Hejie · PFAS-free Anti-Fingerprint Nanocoating

How to useSpraying, curtain coating, brushing, and dip coating are all acceptable methods.
Canal angle>150°
OdorTasteless
Roll angle<10°
ToxicityNon-toxic
High humidity environmentRH ≥95%
Coating film thickness5~10 µm
Acid and alkali resistant5% sodium hydroxide for 72 hours, 5% hydrochloric acid for 72 hours, OK
Glossiness85~95°
Environmentally friendlyBio-based materials, non-toxic and biodegradable
Adaptable substrate

Aluminum, copper, stainless steel, carbon steel, cast iron, titanium, glass, touch screens, semiconductor electronic components, etc.


Optical performance>85% light transmittance retention
Hardness7~8 hours (for aluminum and stainless steel surfaces)



Packaging specifications

5 kg、10 kg、15 kg、20 kg、25 kg、50 kg、100 kg


Transportation and storage  

Transport as non-hazardous chemicals and non-corrosive chemicals. 

Store away from light and heat. 

Single packages must not be stacked more than two layers, and the bottom layer must be secured with a non-slip tray to prevent squeezing, deformation, or tipping.




Shenzhen Varmia Technology Co., Ltd.

Address: Building A, Da Wan Cultural Plaza, No. 4128 

Dongcheng Huan Road, Malan Subdistrict, Pingshan District, Shenzhen

Tel: 0755-27659820  

Fax: 0755-27659830

Mobile: 13302956659 (Mr. Wang)

Email: hmy-tech@163.com


Shenzhen Varmia Technology Co., Ltd. (Longgang Branch)

Address: 2nd Floor, Building 12, Anbo Technology Industrial Park, 

Baolong 4th Road, Baolong Avenue, Longgang District, Shenzhen

Tel: 0755-27659820

Fax: 0755-27659830

Mobile: 13392832759 (Ms. Jin)

Email: hmy_jinjing@yeah.net