Copper compounds are known in several oxidation states, usually +2, where they often impart blue or green colors to natural minerals such as turquoise and have been used historically widely as pigments. Copper metal architectural structures and statuary eventually corrode to acquire a characteristic green patina. Copper as both metal and pigmented salt, has a significant presence in decorative art.
Due to its metallic luster and plasticity, Decorative Copper Foil is widely used in the fields of decoration and art. Decorative Copper Foil can be also used to make decorations, sculptures, painting backgrounds, handicrafts, etc., bringing unique appearance and texture to works.
Key Characteristics
Thickness (Gauge): It is measured in thickness (mils or millimeters) or by weight (ounces per square foot, like PCB foil, but for different reasons). Common weights for stained glass are 1oz, 2oz, 3oz, etc. Thicker foils (like 36-gauge or 0.005 inches) are used for larger, heavier glass pieces, while thinner foils (like 7-mil) are for delicate work.
Backing Adhesive: Unlike industrial foil, decorative foil for stained glass has a pressure-sensitive adhesive on one side, protected by a removable paper or plastic backing. This allows the artist to wrap the edges of the glass piece neatly.
Surface Finish: It comes in a variety of finishes:
- Copper: The classic, warm, reddish-brown color.
- Silver/Black-Backed: The non-adhesive side has a plated finish (silver or black) to change the final look of the lead lines in the finished piece. Silver-backed is popular for a brighter, shinier line.
- Patina Finishes: Foil can be pre-patinaed to colors like verdigris (blue-green) or antique brown so the artist doesn't have to chemically treat the finished project.
Flexibility: It is soft and highly malleable, allowing it to be easily burnished (smoothed) around the contours of glass, stones, or other objects.
Manufacturing Process
Decorative Copper Foil Produced via electrodeposition from a copper sulfate solution onto a rotating titanium or stainless steel drum.The deposited copper is peeled off, then treated (roughening, heat resistance, anti-corrosion).
Rolled Copper Foil Made by cold-rolling high-purity copper cathodes into thin sheets, followed by annealing.Surface can be further treated (e.g., oxidation resistance coating).
PRODUCTION PROCESS FLOW CHART

Available Size and Temper
|
Thickness |
Width |
Temper |
|
0.01~0.015 |
4~250 |
M,Y2,Y |
|
0.018~0.10 |
4~400 |
M,Y2,Y |
|
0.10~0.15 |
4~400 |
M,Y2,Y |
Tolerance of the Dimensions
|
Thickness (mm) |
Tolerance (mm) |
Width (mm) |
Tolerance (mm) |
|
0.01~0.015 |
± 0.002 |
4~250 |
± 0.1 |
|
0.018~0.10 |
± 0.003 |
4~400 |
|
|
0.10~0.15 |
± 0.005 |
4~400 |
Advantages
It features excellent physical properties such as fine grain structure, low profile, and high elongation. In the PCB manufacturing process, it offers the advantages of short circuit etching time and highly uniform circuit etching.
It can effectively contribute to improving the energy density of lithium batteries, provides a stable, conductive substrate onto which the anode active material slurry is coated and rolled.aligning with a major trend in the development of future power battery systems for electric vehicles-lightweighting.
With advantages including light weight, high flexibility, improved electrolyte wetting efficiency, and reduced internal resistance of lithium batteries, it significantly enhances the specific energy and charge-discharge rate of lithium-ion batteries.Copper is electrochemically stable within the operating voltage window of the anode, meaning it does not alloy with lithium.
It exhibits good thermal conductivity, excellent processability, ductility, and formability, along with remarkable resistance to softening and high fatigue strength.Collects and transports electrons generated during the battery's discharge phase to the external circuit. Conversely, it distributes electrons evenly during charging
Test Equipment

Certificate

Company Profile
HSMetal is a technology-driven enterprise dedicated to the design, R&D, manufacturing, and sales of advanced copper foil products. Our portfolio features a range of high-end copper foil solutions such as ultra-thin flexible lithium battery copper foil, HVLP high-frequency high-speed ultra-low profile foil, RTF reverse treated foil, ultra-thin carrier foil (peelable copper), blackened foil, buried resistance foil, and microporous copper foil.
With years of specialized experience in R&D and production of ultra-thin flexible copper foil for lithium batteries, we have built a strong track record of delivering high-performance products alongside comprehensive technical support and customized solutions to clients worldwide.
The ultra-thin electronic copper foil series developed by our company exhibits outstanding stability and reliability, making it suitable for a wide array of applications. These include multi-layer printed circuit boards (PCBs), flexible circuit boards, IC packaging substrates, 5G smartphones, servers, base stations, AI-integrated systems, automotive radar, medical devices, and aerospace technologies.
As a critical material in both the lithium battery and electronics industries, copper foil plays an essential role in enabling technological progress. We remain committed to advancing innovation through sustained R&D, continuously improving product quality, and expanding our development of lithium-ion battery materials. Our goal is to consistently provide superior customer service and contribute to the sustainable, high-quality growth of the industry.

Electrolytic Copper Foil

Microporous Copper Foil

Rolled Copper Foil

Production Line

Quality Control

Quality Control
FAQ
Q1: What info. should I let you know if i would like to get a quotation for the the Electrolytic copper foil?
A1: The material size (Thickness*Width*Length and total Qty). If possible, it would be more better to advise the application of the product
Then we can recommend the most suitable products with details for confirmation.
Q2:How long is your delivery time?
A2:Generally it is 5-10 days base on we have stock on hand. or 15-20 days if no inventory, then need check with our production team for lead time according to the quantity.
Q3: Do you provide samples ?
A3:Yes, if standard sizes sample is free but buyer need to pay freight cost.
Q4:What is your terms of payment ?
A4: Normal payment term is 30%TT, 70% before shipment get ready to ship
Q5: How do you guarantee the quality of the products?
A5: Each step of production and finished products will be carried out inspection by QC department before storing to the warehouse. NG products are not allowed in the completed goods warehouse.
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