Sulfur-Free Paper for Electroplating & PCB Protection | High-Purity Metal Protective Paper

In the electroplating and precision electronics manufacturing industries, surface quality determines product yield, appearance grade, and shipping stability. Among all process factors, one seemingly insignificant interlayer paper often decides whether your metal parts will oxidize, darken, or corrode during storage and transportation.

That protective material is Sulfur-Free Paper for Electroplating.
Kangchuang Paper Industry has specialized in industrial-grade paper for 19 years, providing high-purity sulfur-free paper solutions for PCB manufacturing, photovoltaic optics, precision glass, semiconductor packaging, electroplating factories, and more. Our materials help hundreds of manufacturers reduce oxidation risks, increase production yield, and ensure consistent delivery.

Why Electroplating Factories Must Use Sulfur-Free Paper

Ordinary paper contains active sulfur, chlorine, and other impurities. When exposed to high temperature or humidity, these substances can be released and cause the following issues on metal surfaces:

• Oxidation, darkening, and discoloration on copper, nickel, and chrome

• Spots and corrosion marks on mirror-finished electroplated parts

• Loss of gloss on high-end metal components

• Increased rework and re-cleaning costs, leading to delayed delivery

Metal surfaces—especially electroplated layers—are extremely sensitive to environmental contamination.
Sulfur-free paper, manufactured through a special refining and desulfurizing process, controls sulfur content to below 5ppm, dramatically reducing chemical reaction risks. It is an essential protective material for electroplating factories, hardware manufacturers, and surface treatment companies.

Core Advantages of Kangchuang Sulfur-Free Paper

① Ultra-Low Sulfur Content — High Industry Standard

Made from high-purity raw materials and desulfurized pulp, Kangchuang sulfur-free paper maintains sulfur levels below 5ppm and is certified by third-party testing. It is ideal for long-term isolation of electroplated components and precision metal parts.

② Clean, Uniform Paper Surface — No Powder, No Residue

• Smooth and uniform texture

• No powder shedding or fiber debris

• Won’t contaminate mirror-polished or high-gloss electroplated parts

• Excellent tensile strength, difficult to tear

Perfect for bright plating, nickel plating, chrome plating, and tin plating applications.

③ Excellent Flatness — Ideal for Automated Production Lines

Our sulfur-free paper features high stiffness and smooth flatness. It runs smoothly on automatic cutting machines, stacking machines, and automated packaging lines without jamming.

④ Full Range of Specifications — Complete Customization Options

• 70g / 80g / 90g sulfur-free paper

• Roll or sheet form

• Custom sizes available

• Customizable grammage, width, length, single/double-sided variants

Factory-direct supply ensures stable lead time and transparent pricing.

Solving Real Problems for Buyers

Have you experienced these issues?

• Metal parts turn dark a few days after packaging?

• Customers report surface spots or stains upon inspection?

• Re-cleaning and rework increase costs and delay schedules?

• Ordinary copy paper sheds dust and scratches mirror-finished parts?

The root cause often isn’t your process—
it’s the paper you’re using.

Kangchuang sulfur-free paper is engineered specifically to eliminate these hidden costs.

Choosing sulfur-free paper is not an extra expense—it saves you from:

✔ Rework costs
✔ Customer complaints
✔ Quality control risks
✔ Delivery delays

Real Case: Why More Electroplating Factories Are Switching to Kangchuang

A PCB manufacturer once used ordinary copy paper as interlayer protection. Within days, copper surfaces developed oxidation spots, nearly causing a full-batch rejection. After switching to Kangchuang sulfur-free paper:

• Oxidation issues dropped to zero

• Production yield increased significantly

• Customer complaints fell sharply

• Product surface quality became consistently stable

Cases like this happen every day among our customers.

Choose Kangchuang — Choose More Stable Plating Quality

With 19 years of experience in industrial sulfur-free paper manufacturing, Kangchuang Paper Industry is trusted by electroplating factories, PCB manufacturers, optical glass plants, and semiconductor factories for our strict quality standards, reliable supply capacity, and professional technical support.

Kangchuang Sulfur-Free Paper — For more stable metal surfaces, safer transportation, and more reliable delivery.

A single sheet of paper can define the foundation of your product quality.

Contact Kangchuang Paper