KEY-212 Heyun · PFAS-Free High-Temperature Resistant Nanocoating

KEY-212 Heyun · PFAS-Free High-Temperature Resistant Nanocoating

Product Highlights

Water contact angle 125°

PFAS-free

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-212 Heyun PFAS-free high-temperature resistant nanocoating utilizes sol-gel technology to produce a nano-scale organic-inorganic composite ultra-thin coating. This innovative high-tech eco-friendly coating meets all current environmental standards.

  • This coating can be widely applied to various metal substrates, with core applications in surface treatment for automotive and rail transit manufacturing components. It directly replaces traditional electrophoretic processes while offering long-lasting, easy-clean properties. Not only does it deliver high-strength corrosion protection, but it also imparts superior abrasion and scratch resistance to substrates. Simultaneously, it effectively maintains the substrate's inherent heat dissipation efficiency, enhances metallic luster, and ensures a long-lasting clean and glossy surface. With its outstanding comprehensive performance, it has gained high recognition in global high-end industrial manufacturing sectors such as automotive, rail transportation, and aerospace.


Product Features

  • Serves as a primer protective coating for unchromated light metals.

  • Delivers outstanding corrosion resistance and oxidation resistance.

  • Dust-repellent and anti-adhesive properties enable easy cleaning and maintenance with exceptional scratch resistance.

  • Supports surface coloring and personalized decorative designs, achieving rich metallic effects.

  • Meets customers' high-precision requirements for product dimensions across multiple dimensions.

  • Combines high-temperature protection with resistance to sudden temperature changes.

  • Significantly cost-effective, requiring only 1/10th the coating volume per unit area compared to conventional coatings, substantially reducing overall operating costs.


Performance indicators

KEY-212 Heyun · PFAS-Free High-Temperature Resistant Nanocoating

ViscosityApply to cup #2: 9.5~11.5 seconds
Hardness7~8H (Aluminum and stainless steel surfaces)
Solid content26~31%
Wear-resistantSteel wool abrasive head 1000g × 1000 times
OdorSlightly pungent odor
Canal angle110~125°
ToxicityNon-toxic
Roll angle8~15°
Coating film thickness3~15 µm
Acid and alkali resistant5% sodium hydroxide 72h, 5% hydrochloric acid 72h, OK
Glossiness85~92°
UV test1200h/8 level
PreprocessingSandblasting, shot blasting, passivation, pickling, chromium-free alkaline cleaning
AdhesionLevel 0/5B
Adaptable substrateAluminum, copper, stainless steel, carbon steel, cast iron, titanium
T-bend test≥0T
Salt spray testCarbon steel, 1000h (passivated); aluminum, 3000h



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