The new Polyonics double-coated tapes are ideal for bonding materials that will be exposed to extremly high temperatures and harsh manufacturing environments. They include liners that are designed to be die cut and, due to their additional stiffness compared to transfer adhesives, can be easily auto-applied. The double-coated tapes are resistant to those chemicals typically found in PCB manufacturing and remain dimensionally stable at elevated temperatures. In addition, they provide excellent electrical properties, including dielectric strength, which provide excellent electrical insulation and isolation.
The double-coated polyimide tapes are offered in 1 and 2 mil thicknesses with the 2 mil version being better suited to rougher surfaces. The increased thickness also adds additional stiffness to help in die cutting the tape. Constructions are available with either high temperature acrylic or ultra-high temperature silicone adhesives that offer exceptional bond strength and provide a thin, conformal bond line.
These new double-coated, linered tapes are offered in high temperature, ESD and flame retardant constructions.
The double-coated high temperature versions ( XT-636 and XT-654) are designed to withstand temperatures up to 500°C, remain dimensionally stable and resist harsh chemicals.
The ESD versions ( XT-652 and XT-653) are ideal for bonding static sensitive devices (SSD) to a wide variety of substrates. The tapes provide both low peel voltage (<100v) when the liners are removed and again when the bonded part is removed specifically helping to eliminate electrostatic charges.
The double-coated, flame retardant tape ( XT-657) provide high temperature resistance as well as help prevent the propagation of fire. The tape is halogen free and tested for compliance with the UL94 VTM0 and FAR 25.853 flammability and BSS 7238/7239 smoke and toxicity standards.
Combination ESD and flame retardant double-coated tapes are also available as a wide array of custom constructions.
For more information, please contact Dave Genest at:
Tape.Expert@polyonics.com
603.352.1415
Polyonics Adds New Double-Coated Polyimide Options to its Family of High Temperature Engineered Tapes
Feb 10, 2012
