Polyimide (PI) film inherently boasts outstanding properties such as high-temperature resistance, excellent electrical insulation, and dimensional stability. After applying a "high-temperature acrylic adhesive" with a special formula coating on its surface, this film acquires both adhesive and high-temperature bonding characteristics, making it widely applicable in the following fields:
High-temperature Insulation Tape
Polyimide film can withstand temperatures up to 320℃ and even higher, while high-temperature acrylic adhesive maintains good adhesion at higher temperatures.
Suited for high-temperature processes such as wave soldering, reflow soldering, hot pressing in electronic manufacturing, serving as protective tape for circuit boards and critical components to prevent damage from high temperatures or chemicals.
Insulation and protection of electronic components
The excellent insulating properties of polyimide films make them a common base material in many electronic devices and flexible printed circuits (FPCs); coupled with the adhesive nature of high-temperature acrylic adhesives, they can be directly bonded to the surface of the devices, providing stability, insulation, and protection.
Also used in the insulation of lithium batteries and for protecting internal wiring in cell phones and other handheld devices.
High-performance labeling or identification materials
Utilize high-temperature acrylic adhesive for reliable bonding in harsh conditions (such as high temperatures, high humidity, and even certain chemical corrosion environments).
Combining polyimide film with high-temperature acrylic adhesive to create labels, suitable for applications requiring high-temperature resistance and chemical corrosion resistance, such as electronic components and aviation equipment. Ensures long-term clarity and durability of the markings.
High-Temperature Shielding/Protection
In processes such as painting, electroplating, etching, and dry/wet film coating, high-temperature acrylic adhesive ensures stability under higher temperatures and chemical agents.
Ideal as masking tape, designed to protect surface areas that should not be treated or coated, allowing for clean removal after completion.
Aerospace and Special Environment Applications
Polyimide materials are widely used in the aerospace industry, thanks to their high-temperature and radiation-resistant insulating properties, which excel in extreme environments like high vacuum and temperature cycling; high-temperature acrylic adhesives can also provide reliable bonding and sealing in such conditions.
Cable bundling and critical component protection for aerospace or aircraft interiors.
Other composite materials applications
When polyimide film needs to be laminated with other substrates (such as foil, plastic substrates, etc.), high-temperature acrylic adhesive provides a durable interfacial bonding strength and maintains stability during heat pressing or reflow processes.
For the preparation of high-performance flexible composite materials, such as flexible circuits, protective films for sensors, and special thermal insulation materials.
In summary, coating polyimide film with high-temperature acrylic adhesive serves the core purpose of maintaining the high-temperature resistance and excellent insulation of polyimide while providing reliable adhesion in high-temperature or complex environments. This enables its widespread application in fields such as electronics, electrical, aerospace, industrial protection, and signage.
