About 3U

3U is a leading manufacturer of advanced nano-coating solutions based in China. With a focus on innovation and sustainability, we specialize in developing high-performance radiant cooling coatings and hydrophilic self-cleaning coatings for solar panels. Our products are designed to enhance energy efficiency, reduce maintenance costs, and extend the lifespan of various surfaces and equipment. We are committed to providing eco-friendly solutions that contribute to a greener future.

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Our Nano-Coating Products

Explore our innovative nano-coating solutions designed to enhance performance and durability of various surfaces.

Non-Electric Self Cooling Coating

Advanced coating with solar reflectance >96% that passively radiates heat, reducing cooling costs for buildings, data centers, and equipment.

Energy Efficient
Eco-friendly
Heat Reflective

Hydrophilic Self-Cleaning Coating

Nano-coating for solar panels that enables self-cleaning through rainwater, reducing maintenance costs and improving energy efficiency.

Self-cleaning
Water Saving
UV Resistant

Industry Solutions

Tailored nano-coating applications for various industries to improve efficiency and reduce environmental impact.

Cold Chain Logistics

Our radiant cooling coatings provide superior thermal insulation for refrigerated trucks, containers, and storage facilities, reducing energy consumption and maintaining optimal temperature conditions for perishable goods.

Data Centers

Addressing the high energy consumption of data centers, our radiative cooling coating can be applied to roofs and exterior walls, effectively reducing building surface temperatures, decreasing air conditioning cooling loads, and improving energy efficiency.

Commercial Real Estate

Our radiative cooling coating applied to the roofs and exterior walls of commercial buildings and public facilities effectively reduces building energy consumption, improves indoor comfort, and creates more sustainable building environments.

Storage Tanks

Our radiative cooling coating applied to grain silos and industrial storage tanks effectively reduces internal temperatures, prevents moisture condensation, maintains product quality, and significantly decreases the need for mechanical ventilation and cooling systems.

Photovoltaic Cleaning

Our photovoltaic panel hydrophilic self-cleaning coating effectively addresses dust accumulation issues on PV modules, reduces manual cleaning frequency, improves power generation efficiency, and lowers maintenance costs.

Latest Projects

Solar Panel Cleaning

OCTOBER 19, 2025

Easy nano solutions that remove dust and boost power for large solar sites

Drone PV Cleaning Partnership

NOVEMBER 21, 2025

Team up with cleaning firms for safe drone wash that keeps panels efficient

Park Wooden Walkway Protection

DECEMBER 22, 2025

Strong nano guards for paths to fight moisture and last longer in parks

See Our Coatings in Action – Real Help for Your Needs

Why 3U

Top Quality

3U gives strong nano coatings that last and protect well

Smart Solutions

We match your needs with coatings that save you time and cash

Expert Service

Our team ensures safe, easy coatings that work right for you

Reliable Technology

3U uses top nano tech for trusted shields you can depend on

Water beads up on glass (left), sheets off on hydrophilic coating (right), carrying dust

3U offers great coating help with smart tech, expert teams, and strong support for your jobs

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Let’s Get Started

Improve your work with our nano coatings—tell us your needs, and we’ll provide the right help