Electrical & Thermal Insulation Materials
Electrical and thermal insulation materials including flexible laminates (DMD, NMN, NHN), Kapton film, fiberglass, and mineral wool with precision converting and die cutting.
Converting Options
Overview
ALS Tape supplies and converts electrical and thermal insulation materials for motors, transformers, electronics, and building applications. Flexible electrical insulation laminates include DMD (Dacron-Mylar-Dacron), NMN (Nomex-Mylar-Nomex), and NHN (Nomex-Hostaphan-Nomex) composite films for slot and phase insulation in motor and transformer windings. Polymeric electrical insulation films include PET (Mylar) and polyimide (Kapton) in a range of thicknesses for wrapping, barrier, and slot liner applications. Electrical tapes and tubing, impregnating resins, and varnishes complement the film range for complete winding insulation systems. Thermal insulation materials include fiberglass board and blanket, mineral wool, and spray polyurethane foam in both open-cell and closed-cell formulations for building, HVAC, and industrial equipment applications. Converting services include precision die cutting of thermal barriers, custom lamination of electrical insulation film constructions, and integration of insulation layers into packaged components.
Material Types
DMD (Dacron-Mylar-Dacron) flexible laminate for motor slot insulation
NMN and NHN (Nomex composite) laminates for high-temperature winding insulation
PET (Mylar) and polyimide (Kapton) films for electrical barrier and wrapping
Fiberglass and mineral wool for thermal and acoustic insulation
Spray polyurethane foam for building envelope and equipment insulation
Key Properties
Dielectric strength: up to 7 kV/mil depending on material and thickness
Temperature class: Class B (130°C) to Class H (180°C) for flexible laminates
Kapton polyimide: continuous service to 400°C
Available forms: roll, sheet, slit strip, and precision die-cut parts
Applications
Motor and transformer slot and phase insulation
Electronics PCB and component barrier insulation
HVAC duct and equipment thermal insulation
Building envelope wall, roof, and floor insulation
Industrial equipment thermal and electrical barrier layers
Related Products
FAQ
What is the difference between DMD, NMN, and NHN laminates?
DMD uses polyester fiber and PET film layers, suited to Class B and F applications. NMN and NHN use Nomex aramid paper layers with PET or polyester film, providing higher temperature performance for Class H motor and transformer insulation.
When is Kapton polyimide film used instead of PET insulation film?
Kapton is used when continuous service temperatures exceed the capability of PET (approximately 150°C). Kapton maintains dielectric and mechanical properties up to 400°C, making it the standard for aerospace, military, and high-temperature electronics applications.
Can insulation materials be precision die cut to motor slot dimensions?
Yes. Flexible laminates and film insulation materials can be precision die cut to custom slot liner, phase insulator, and barrier profiles to match specific motor or transformer winding geometries.
Material Inquiry
Electrical & Thermal Insulation Materials
Electrical and thermal insulation materials including flexible laminates (DMD, NMN, NHN), Kapton film, fiberglass, and mineral wool with precision converting and die cutting.