HL black polyimide film is homogenous opaque film, with glossiness achieving data 115 so so, own good mechanical, chemical, thermal performance.
High temperature tape, label
Available thickness: 1mil,2mil
Technical requirements for polyimide film
1. appearance: smooth surface , no particles, bubbles and pinholes and impurity defects, edge neatly.
2. width is 520mm, splitting is available
3. thickness tolerance ≦±10%
Relative dielectric constant
Dielectric loss factor（48-62HZ）
After completion of formula,the materials begin to polycondensation,flowing into resin storage,casted by casting machine,scrolling into imine furnace for complete drying,tension and imidization,and beginning to wind. After winding, start to strimming side or slitted as clients' demanding. Then the coil must be during corona treated and post-processed for good performance.