You are here

Material compatabilities

I have a need to join polyethelene and polyester film. They seem to be incompatable, looking for a barrier that may be compatable to both


Hi Jim,

Unfortunately I don't think either PE or polyester (PET / PBT) are compatible for ultrasonic welding with any materials other than themselves. This [url=]compatibilty table[/url] from Branson seems to confirm.

For thin films you may be better off looking at heat sealing anyway. Perhaps you could contact some manufacturers who offer both heat sealing and ultrasonic systems so they could give you an unbiased opinion.