PERMA-FOIL® is a flexible graphite sheet made from specially processed natural graphite without use of a binder. Special processing developed by us gives it a flexibility and compression recovery not found with conventional graphite products. These qualities ensure a snug fit with contacting parts, therefore it is widely used as a seal, to note automotive gaskets and packing.
PERMA-FOIL®has excellent electrical conductivity and can be used in electrochemical applications. It also has excellent heat resistance and chemical resistance, so it can be expected to be applied to devices used in all environments. Industry example :Various electrochemical devices such as various batteries and capacitors Usage example :Electrode material, Current collector
PERMA-FOIL® has high thermal conductivity in addition to flexibility. When used in heating process, the adhesion between the heat source and the material is improved, and heat can be evenly diffused to achieve efficient manufacturing. Industry example : Semiconductor Device, LED, Ceramics, and Thermally Joining Usage example : Heat & Pressure Equalizing in Joining Process, Braze-Jointing, Diffusion Bonding
PERMA-FOIL® has excellent flexibility and compressibility. For this reason, when used in the pressure process., it can prevent uneaven contact and transmit pressure evenly. Industry example : Semiconductor Device, LED, Ceramics, and Thermally Joining Usage example : Heat & Pressure Equalizing in Joining Process, Braze-Jointing, Diffusion Bonding
PERMA-FOIL® has excellent compression and flexibility. Therefore, even if the material is uneven and has a low heat transfer effect, it is possible to improve the adhesion and increase the heat transfer effect by inserting PERMA-FOIL™. Industry example : Semiconductor, Liquid Crystal Panel, LED Lighting, Electronic Parts, Solar Panel Usage example : Cooling, Heat Conduction
As PERMA-FOIL® has both excellent self-lubricating and chemical resistance, it can be used as a mold release material. In addition, mold is protected since the finished product does not directly touch the mold. Industry example : Quartz Glass, Ceramic, Synthetic Resin Usage example : Mold Release, Prevents Cracking
In the Sillion single crystal pulling process, PERMA-FOIL® is used between the graphite crucible and the quartz crucible to prevent the graphite crucible from becoming SiC and to extend the life of the crucible. Industry example : Furnace, Sillion Crystal Ingot Usage example : Prevents Arcing and Leakage, Prevents Conversion of Graphite Crucible into SiC
PERMA-FOIL® can be used in any environment compared to other materials because it has high adhesiveness and sealing properties, but also has a wide usable temperature range and excellent chemical resistance. Industry example : General Industry, Automobile, Industrial Furnace Usage example : Packing, Gasket, Electrode Packing
PERMA-FOIL® has excellent sealing properties, durability, and machinability. Our high purity products have gone through our unique purification process and are optimum as components in the nuclear energy industry, as spacer and packing used in the semiconductor industry, as radiator plates used in the electronics industry, and as other such components. Grades are arranged for all kinds of applications including: automotive gaskets, general industrial packing, pasts for semiconductor equipment, corrosion resistant seals, IT industry applications, and a wide range of other applications. We produce this product in a wide array of size and shapes including rolls, cut sheets and custom shapes made to customer specification.
| Grade | Characteristics | Application | Forms of Supplies |
|---|---|---|---|
| PF | PERMA-FOIL® Standard products | Automotive gaskets General Industrial packing |
 Roll products Cut products 
|
| PF-R2 | Heat resistance improved version of standard products | ||
| PF-HP | Low ash content products | ||
| PF-G3 | Corrosion resistance and Heat resistance improved version of R2 Products | Heat resistant gasket Packing |
|
| PF-UHP,UHPU,UHPL | High purity products | Parts for High purity furnace for semiconductor and nuclear applications Heat conducting material Heat spreader | |
| PF-A | Bonded products（Thickness≧1.5mm） | Heat insulation material General industrial packing | processed products
|
| PF-SUS,AL | SUS, AL Foil Laminated products | Automotive gaskets General industrial packing |
processed products |
| Gather sheets | Gather sheets with adhesive tape | Flange gasket | tape type |
| PF Powder 4, 8F | Pulverized expanded graphite products | General industrial packing Battery parts |
Powder |
*For available dimension, please contact our sales department.
