Looking for US/Canada source for mylar film for electrostatic speaker repair

[William Buchholz]

I am looking for a US or Canadian source for microfine mylar film, 4-6
microns thick, suitable for replacing the diaphrams on electrostatic
speakers. Any pointers are appreciated. Thank-you

 

[NSM]

I am looking for a US or Canadian source for microfine mylar film, 4-6
microns thick, suitable for replacing the diaphrams on electrostatic
speakers. Any pointers are appreciated. Thank-you

Does it need to have a metallic coating?

N

 

[William Buchholz]

Does it need to have a metallic coating?

N

The originals don't appear to be metallic at all, they have some sort of
semi-conductive coating, probably graphite.