We produce the material from 1235 or 8079 high purity alloys to give the foil a very low pin hole density and a high-quality surface finish. Our state-of-the-art rolling technology can produce pin hole counts between 10-30 per square meter in this difficult gauge. Additionally, our stringent thickness tolerance of +/- 5% across the width of our foil will provide consistent performance during high-speed converting and winding processes. For these reasons, we believe our aluminum foil will be used in high-speed applications (capacitance) where consistency is very important. 

HTMM’s six-micron aluminum foil is an essential component in the development of high-tech products. This foil is used in many areas, including electronics, flexible packaging, and other technical and industrial applications where performance and precision are critical. In the electronics industry, this foil is typically used as the anode for aluminum electrolytic capacitors.

Its ultra-thin gauge allows for high capacitance in small packages, which are necessary for the design of today’s electronic devices. Additionally, the consistent surface characteristics and high purity of HTMM’s foil are crucial for the etching and forming processes utilized in developing the microscopic surface features necessary for capacitor performance. In flexible packaging, this six-micron foil is the ultra-thin barrier component in high-performance laminate structures used to package sensitive products, such as pharmaceutical blister packs, diagnostic test strips, and high-value food items, where both minimum material use and complete protection are required. Technical and industrial applications receive our six-micron foil in building specialty tapes, insulation materials, and lightweight shielding, where thickness and weight constraints are critical elements of design. For decorative and metallizing purposes, our six-micron foil serves as an excellent substrate for vacuum metallization, which makes possible the production of brilliant, reflective finishes on labels, packaging, and decorative components while using minimal material.

HTMM's 6 Micron Aluminum Foil has achieved phenomenal acceptance within sophisticated industrial markets around the globe. HTMM's 6 micron ultra-thin foil has become the preferred choice among manufacturers looking for the highest level of precision and performance for their ultra-thin foil needs. Japan and South Korea account for our largest and most demanding markets; capacitor manufacturers and electronics manufacturers require the high level of quality and consistency produced by our 6 micron foil for their high-precision components. Similarly, we have strong demand for our ultra-thin foil products among high-end industrial manufacturers in Germany and Switzerland, where engineering excellence and reliability are critical. In the US, our ultra-thin foil product has shown healthy and growing demand, particularly for specialty packaging and technical applications where lightweighting and material efficiency are important considerations.


Taiwan is a major hub of capacitor manufacturing, with HTMM's 6 micron foil widely used by the leading capacitor producers in that region. In addition, HTMM's ultra-thin foil products are being increasingly specified by local electronics manufacturers and local manufacturers of packaging as China's domestic electronics and packaging markets expand. Emerging markets for HTMM's ultra-thin foil products include Singapore and Malaysia for the electronics assembly and packaging markets in these regions. The growth of our global acceptance is indicative of the global significance and importance of HTMM's 6 micron foil as an ultra-thin foil product providing consistent and precise quality outputs across all global regions.

If you're looking for aluminum foil that is 6 microns thick, consider partnering with HTMM. By doing so, you'll have the advantage of accessing world-class Chinese manufacturing capabilities while receiving internationally accepted quality standards (ISO, ASTM) and technical assistance from dedicated professionals. HTMM provides expert assistance to help you select the best aluminum alloy/temper/type specification that is specific to your application(s) such as capacitors, flexible packaging or other technical uses to ensure maximum performance and value.

HTMM's state-of-the-art manufacturing techniques including precision rolling mills, controlled-atmosphere annealing furnaces and sophisticated pinhole detection systems, provide consistency with respect to quality and performance on all rolls of aluminum foil. HTMM offers a complete range of customizable services, including precision slitting of foil to width tolerance with minimal edge burr, customized annealing profiles to produce desired mechanical properties, and surface treatments to enhance coating or printing adhesion to foil. HTMM's robust quality assurance system that includes real-time thickness measurement, pinhole detection, and comprehensive mechanical test data, ensures that each shipment of foil meets demanding specifications for ultra-thin foil applications. HTMM can provide you with complete certification documentation such as test results, material certification, and compliance details for complying with international standards. In addition to delivering product to you, HTMM can provide you with ongoing technical support to optimize processes, provide assistance on troubleshooting high-speed converting and work collaboratively on future developments of ultra-thin foil products.
 

FAQ

What are the primary uses of 6 micron aluminum foil? 
A: The main uses include aluminum electrolytic capacitors (for anode foils), flexible packaging laminates with ultra-thin barrier layers, specialized tapes, insulation products, decorative metallization/decorative foil applications, and technical uses that require weight/thinness as top priorities.

Does 6 micron foil provide as good of a moisture or oxygen barrier as thicker foil? 
A: 6 micron foil has an excellent moisture and oxygen barrier; however, because of the greater pinhole potential when compared to a thicker foil, it generally does not perform as well in terms of barrier performance. In some cases where length of shelf life is required for strict barrier requirements, 7-9 micron foil would be considered ideal. In many cases, where the foil is incorporated into other materials as part of a laminate process, 6 micron foil provides an adequate barrier while yielding significant material savings.

Do you have 6 micron foil that can be used in food contact applications? 
A: Yes, 6 micron foil made from our 1235 alloy has met all of the required FDA regulations and EU food contact regulations. However, as the 6 micron foil is very thin, the majority of food packaging applications use it as a component in a multi-layer laminate. This allows the laminate to provide the necessary mechanical strength, while the foil provides the barrier properties.

What is the normal pinhole amount your 6 micron foil has?
A:  The regular foil grade's density of pinholes is less than 50 per m2. For better protecting, we sell a premium grade of foil with a pinhole density of <20/m2. Pinholes on custom foils can be discussed and incorporated into your requirements.

What is the minimum amount of order for custom specifications?
A: The standard MOQ is 2 metric tonnes and may be split between various widths or specifications in any one alloy/thickness. Sample rolls are available as well as small quantities for trial orders and/or application development, upon request.