Nomex is an aramid paper rated Class H (180 °C). Mylar and PET are polyester films rated Class B (130 °C). Gar-Flex APA is an aramid-polyester-aramid laminate rated Class F (155 °C). All are supplied as sheet or roll, or die-cut, punched and folded to drawing, for slot liners, phase barriers, spacers and wraps.
| Material | Insulation class | Stock thickness | Formats |
|---|---|---|---|
| Nomex (aramid) insulation paper | Class H | 0.13 / 0.38 mm | Sheet, slot liners, barriers and formed parts |
| Die-cut Mylar sheet | Class B | 0.1 / 0.2 / 0.3 mm | Spacers, slot liners and insulation parts, die-cut |
| Punched & folded polyester film | Class B | 0.08 / 0.30 mm | Punched and folded to your spec |
| Die-cut DuPont insulation | Per material | To drawing | Slot liners, phase barriers, spacers and formed parts |
| Gar-Flex APA (aramid-polyester-aramid) | Class F | 0.10 / 0.30 mm | Die-cut slot liners and phase barriers |
| PET film | Class B | 0.1 / 0.5 mm | Roll, sheet or die-cut part |
A paper made from aramid (aromatic polyamide) fibre. It carries a Class H rating, 180 °C, and is supplied as sheet, slot liners, barriers and formed parts.
Mylar is a brand of polyester (PET) film; PET film is the same polymer supplied as roll, sheet or die-cut part. Both carry a Class B rating, 130 °C, and are die-cut, punched and folded into spacers, liners and barriers.
A three-layer laminate: aramid paper, polyester film, aramid paper. It carries a Class F rating, 155 °C, and is die-cut into slot liners and phase barriers.
The insulation class is the thermal class defined in IEC 60085: the maximum continuous temperature the insulation system is rated for. See electrical insulation classes explained for the full table.
Nomex is an aramid paper rated Class H, 180 °C. Mylar is a polyester film rated Class B, 130 °C. Both are supplied as sheet or die-cut parts.
Mylar is a brand name for polyester (PET) film. Both carry a Class B rating, 130 °C.
An aramid-polyester-aramid laminate, rated Class F, 155 °C, supplied die-cut for slot liners and phase barriers.
Yes. Steel-rule die cutting, punching and folding, and slit rolls are all done in-house in Bengaluru.
Perfect Insulations has manufactured thermal and electrical insulation in Bengaluru since 1995 and works to ISO 9001:2015. Send your drawing or specification with the material, thickness and quantity.