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PC4 / TPW-204 · Superhydrophobic Nano-Coating

Superhydrophobic nano-coating — outperforms conformal coating

The only coating in the industry with outstanding anti-condensation performance. Water contact angle between 150° and 180°, exceptional corrosion resistance and short-circuit protection, with multiple solutions tailored to different protection needs.

150°–180°
Contact angle
8–10 yr
Protection lifespan
2000 h
Salt spray
−80~300℃
Wide-temp protection

01 · Principle

From lotus leaf to chip — nature's superhydrophobic blueprint

We systematically studied superhydrophobic species in nature — lotus leaves, water striders, butterfly and cicada wings, mosquito eyes, rose petals, rice leaves, salvinia and pansy petals — and identified two universal traits: ① micro/nano-scale rough structure + ② low-surface-energy wax coating. Any material treated this way becomes superhydrophobic. Validated on glass, cotton, textiles, paper, metal, building materials and more.

Validated substratesGlassCottonTextilesPaperMetalBuilding materialsPCBCeramics
  • 01

    ① Micro/nano-scale rough structure

    The surface features micro- and nano-scale geometry that traps air pockets in its texture, preventing liquids from wetting it.

  • 02

    ② Low-surface-energy wax coating

    A low-surface-energy wax film is deposited over the micro/nano structure. In principle, any surface treated this way becomes superhydrophobic.

From lotus leaf to chip — nature's superhydrophobic blueprint
Nature · Lotus effect
Product · Coated PCB
Product · Coated PCB

02 · Technology

Proprietary R&D · In-House Production · Scaled Manufacturing

  • Partnered with dozens of listed Chinese companies on PCBA board-level protection solutions
  • Scaled volume production with consistent quality
  • Internationally leading technology, backed by third-party test reports
MetricOur coatingConformal coating
Coating thickness~1 µm40–120 µm
Curing temperatureRoom temp>150℃
Adhesion (cupping)7 mm2–3 mm
Water immersion>100 days<7 days

03 · Advantages

Ten decisive advantages

01

Exceptional waterproofing

Contact angle >150°, >100 days in water without wetting; powered water-spray demo available

02

Superior short-circuit protection

1.5× the short-circuit protection of 3M fluorinated fluid (oxidizing-solution test); blocks ion migration

03

Outstanding corrosion resistance

Salt spray 200/500/1,000/2,000 h options; contact angle unchanged after acid/alkali immersion

04

Inherent self-cleaning

Lotus-leaf effect — dust is carried away by water droplets without detergents

05

Safe and eco-friendly

Non-flammable, odorless, non-toxic, no flash point — safe for operators and the environment

06

Simple application and repair

Dip for 2–10 s, air-dry in ~3 min; single-component, high-efficiency application with no spray equipment needed; manual or machine coating, no masking required; easy re-coat on damage

07

Dip-coated, zero impact on conductivity

Nano-tunneling effect: conducts vertically, insulates horizontally — resistance increase only 0.004 mΩ

08

Complete coverage, no blind spots

Dip coating reaches every surface — eliminates spray-coating dead zones

09

Excellent thermal dissipation

Thermal conductivity 3.3 W/mK — 3–10× higher than conventional conformal coating

10

Anti-condensation and anti-frost

No frost after 6.5 h on a −10℃ cold plate (Hisense test); the only product that prevents condensation — condensation is the No. 1 killer of electronics

04 · Comparison

Head-to-head comparison

MetricOur coatingConformal coating
WaterproofingUltra-low surface energy — water vapor and condensation cannot adhere; the only condensation-proof coating (Gibbs free-energy mechanism)No condensation protection
Short-circuit protectionBlocks ion migration; water-vapor transmission a fraction of conventional coatingsHigh water-vapor transmission
Corrosion resistanceDense, inert structure; stable dielectric constant and low lossForms a continuous water film — prone to short circuits and galvanic corrosion
Salt spray resistanceNaturally repels salt sprayDepends on film integrity
Mold resistanceHydrophobic dry surface inhibits microbial growthRequires anti-mold additive
Dust resistanceLotus-leaf self-cleaning effectNo dust resistance
Thermal dissipationInorganic–organic composite, excellent heat transferPolymer material, poor heat transfer

First mass-produced superhydrophobic coating — world-leading performance verified by independent third-party testing

05 · Applications

Validated across major electronics sectors

One superhydrophobic protection system, proven in multiple industries. ~1±0.1 μm thick, 160° contact angle, fully non-wetting.

Smart locks

Smart locks

Industry challenge

Indoor/outdoor temperature swings cause PCB condensation, leading to corrosion, short circuits and current leakage

Test results
Contact angle160°
Salt spray200 h
Heat & humidity60℃, 95% RH, 144 h
Thermal cycling−40~80℃, 168 h
AdhesionGrade 0

06 · Contact

Talk to sales, start a sample test

Tell us about your project. Our engineering team replies within one business day with samples and a full technical proposal.

Your information is used solely for technical follow-up.

First mass-produced superhydrophobic coating — world-leading technology

  • Validated with Huawei and Midea — the only anti-condensation product, widely used for PCBA protection
  • Independent third-party test reports: RoHS, REACH, PFAS
  • 60+ proprietary patents (US, Germany, UK) — independent R&D and manufacturing; long track record in nano-material R&D and industrial deployment

SUPERHYDROPHOBIC · >160° · ~1 μm

See every board run dry.