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Wuyi City, Zhejiang, China
Licensed surface technology

MARSCOAT® nano film — stainless steel that rinses clean

A transparent, inorganic nano-scale protective layer fused onto stainless steel. Easier to clean · More heat resistant · Longer lasting — while keeping the metal's natural look and feel.

See It Work

Seven demos, five proven advantages

Every claim below is demonstrated on camera, filmed on real cookware from our line.

Overview

The nano coating, in one minute

What MARSCOAT® nano film is, and why it changes stainless steel cookware.

Our Factory

Robotic spraying line

The film is machine-sprayed onto the cookware body in our own surface-treatment line, then cured.

Advantage 01

Resists heat-induced yellowing

The surface stays bright after high-heat cooking — verified at 500 °C for 2 hours in lab testing.

Advantage 02

Egg non-stick

A fresh egg lifts cleanly off the surface — no oil pooling, no scraping.

Advantage 03

Easy cleaning

Grease and residue rinse away under plain water, no scrubbing.

Advantage 04

Scratch resistance

Surface hardness above 9H (pencil scale) — stands up to daily utensils and cleaning.

Advantage 05

Food-grade safety

Inorganic film with food-contact compliance — lead & cadmium migration passed (FDA CPG 545.400/545.450).

Technical Parameters

The numbers behind the film

<10° water contact angle

Super-hydrophilic surface — water spreads into a film instead of beading.

>9H pencil hardness

GB/T 6739-2022 — harder than most conventional non-stick coatings.

Class 0 adhesion

GB/T 9286-2021 cross-cut (5B by ASTM D3358) — the best grade.

2–5 μm film

Cured at 190–290 °C; transparent and colourless.

500 °C heat test — pass

GB/T 2423.2 coating adhesion durability at 500 °C.

≥91% transmittance

KSL 2016 — optically clear, keeps the steel's own look.

>99% antibacterial

E. coli >99.0% and S. aureus >99.9% reduction rates.

Food-contact compliant

Meets FDA, LFGB and China food-contact standards.

The Technology

A protective film you can't see, but customers feel

MARSCOAT® is a hydrophilic, inorganic nano coating applied through a controlled process that seals the micro-pores of stainless steel with a dense, transparent protective layer.

Unlike traditional non-stick coatings, the film does not change the color or texture of the steel — it simply upgrades its surface performance.

Transparent & colorless Inorganic nano materials Seals micro-pores Bonded to substrate
MARSCOAT layer structure: hydrophilic easy-clean film, dense bonding layer, stainless steel substrate
① Hydrophilic easy-clean layer — the MARSCOAT® nano film
② Dense bonding layer — fills and seals micro-pores
③ Stainless steel substrate — unchanged look and texture
Why Buyers Care

Six core advantages for a better cooking experience

Water rinsing a treated stainless steel pan clean

Rinses clean with plain water

Water wets the surface first, so grease and residue release with a quick rinse — everyday cleaning takes seconds, with less detergent and less water.

Stainless steel pot over high flame without yellowing

No yellowing under high heat

Tolerates normal cooking temperatures and resists yellowing or discoloration over long-term use — the cookware keeps its original metal look.

Water droplets on dense scratch-resistant steel surface

Wear & corrosion resistant

A dense, durable surface that stands up to scratching, water stains, salt and common acids — built to handle everyday cooking for longer.

Scratch & wear resistant

Higher surface hardness and abrasion resistance — daily use leaves fewer visible marks and extends service life.

Food-contact compliant

Meets food-contact material requirements — cooking stays worry-free.

Long-lasting

Multiple performance gains work together to keep the surface stable — it stays clean-looking through years of use.

Product Lines

Applicable across the full cookware range

Wok

Woks

Even heat for stir-frying, easy release and clean-up after high-temperature cooking.

Fry pan

Fry pans

Quick searing with easier turning and rinsing — the biggest day-to-day win.

Stock pot

Stock pots

Long simmering without stubborn stains or limescale buildup.

Milk pan

Milk pans

Small formats for heating and sauces — cleaned in seconds.

Cookware set

Complete sets

Full multi-piece programs with consistent finish across every piece.

Special shapes

Custom shapes

Fish pans, roasters and irregular forms — the treatment follows the geometry.

Third-Party Testing

Rigorous testing & compliance

High-temperature performance — stable performance maintained in high-heat cooking environments.
Corrosion resistance — passes salt-spray, acid and alkali testing for dependable anti-corrosion capability.
Wear resistance — passes abrasion testing; everyday use leaves no obvious scratches.
Food-contact compliance — meets relevant food-contact material standards.

Specific performance refers to the valid test report of each model, conditions of use and warranty terms.

Independent laboratory test report

Ten independent test reports

Issued by SGS and CTI (华测) for the MARSCOAT® inorganic nano coating — click any report to view it full size.

Third-party reports above were issued to the technology provider (Hangzhou Zhongwei Nano Technology) and cover specific tested samples and conditions. Full multi-page PDFs are included in every quotation package.

YUNBOND In-House Verification

We test finished pans, not just coupons

Internal test report No. YB-D-(CS)-N-2-0 (2026-09-30) — sample: 28 cm titanium wok with nano ceramic inorganic coating, film thickness 5–12 μm. All six checks passed.

TestProcedureRequirementResult
Non-stick (fried egg)Heat to 120–140 °C, add fresh egg, keep 120–180 °C until white sets, lift with a plastic or wooden spatulaWhole egg lifts without stickingPass
Heat-resistant non-stickHeat to 300±5 °C, hold 30 min, cool, then fry an eggWhole egg lifts without stickingPass
Adhesion / cross-cut + tape11 lines × 11 lines at 1.0 mm to substrate (bottom, wall, curve), 3M tape pulled 6 times at 90°No full square flaking offPass
Scratch resistanceCoin scraped back and forth 100 times at 2.5–3.5 kg forceNo obvious scratchesPass
Dry-fire cyclingDry-fire to 300±10 °C, quench in cold water, repeat 20 cyclesNo obvious yellowingPass
Anti-yellowing (boiling)Boil water at maximum heat for 3 hours, topping up continuouslyNo obvious yellowing inside or outPass
YUNBOND in-house test report YB-D-(CS)-N-2-0, first page
YUNBOND LabIn-house test report — click to view full size

About the licensing

YUNBOND (Zhejiang Yunbang Technology Co., Ltd.) is an authorized applicator of MARSCOAT® technology, licensed by Hangzhou Zhongwei Nano Technology Co., Ltd. — the developer and IP owner of the MARSCOAT® nano film.

We apply the technology in our own factory under the licensor's process and quality requirements, so your products carry a genuine, traceable technology story — not a marketing claim.

MARSCOAT® is a registered trademark of Hangzhou Zhongwei Nano Technology Co., Ltd. All technology claims on this page are qualitative; detailed specifications follow the applicable test reports and warranty terms.

Want to evaluate MARSCOAT® on your line?

Send us your target models and we'll arrange samples — you test the cleaning performance yourself before committing to volume.