Insulation Film

Hello,

We have 400KVA alternator that need to be rewind, but we cannot find in the market the insulation material it is a 3 ply paper/something like mylar(milky white)/paper the overall thickness is around 0.80mm I measure the middle film looks like mylar the size is around 0.30mm. the winding insulation class is H. There are two kinds of insulation used, one is 0.60mm 3 ply also.

Anybody know the exact name of the insulator? I found one called Nomex/Mylar/Nomex but the max thickness they have is 0.50mm.

We have expierence in rewinding motor from 100hp down to 0.37kw. But Generator not yet.

Darial