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3M Flexible Insulation

3M OEM Products

Composite Materials

Electrical Insulation

Application Guide

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CeQUIN Laminates are typically used where excellent resin saturation is required but the pure CeQUIN does not meet the mechanical requirements of the application. Typical substrates are PET and PI films as well as glass cloth.

CeQUIN/Glass Cloth Laminates

CeQUIN/Glass Cloth laminates are made of CeQUIN paper and Non-Alkali Glass Fabric made of continuous glass fibre yarn.

The laminates are designed for highest tensile strength and cut-through resistance combined with maximized resin absorption, excellent conformability to round surfaces. Compareable products mgiht be NOMEX-board or Glass fibre reinforces composite boards. But unlike these product the 3M laminates are conformable and absob resin not only on the surface but saturate through the complete thickness of the laminate. The curing of the resin turns the saturated laminates into durable composites thus becoming a rock-solid insulation barrier. The major appliacation for this laminate are barriers for humidity and ground insulations in transformers.

CeQUIN/PET Film Laminates

CeQUIN/PET Film laminates are made of CeQUIN paper and ELECTRICAL INSULATION GRADE Polyester film.

The laminates are designed for high tensile strength and cut-through resistance combined with good resin absorption and conformability to round surfaces. The dielectrical strength, snap-back and shape memory depend on the thickness of the PET film. Compareable products mgiht be NMN and DMD. But unlike these product the CeQUIN/PET laminates are more conformable and absorb more resin. This makes CeQUIN/Film laminates idaal for dip or trickle impregnation.
The major appliacation for this laminates are motor repair shops that do not have VPI equipment but need impeccable resin saturation.

CeQUIN/Polyimide Laminates

CeQUIN/PI Film laminates are made of CeQUIN paper and polyimide film. Like CeQUIN/PET laminates they are the material of choice for dip or trickle impregnation.

These laminates have basically the same mechanical and dielectrical properties as the CeQUIN/PET lamiates. With the PI film these laminates are designed for more demanding applications at higher temperatures. The very good fire safety properties of polyimide and the lack of halogens in CeQUIN also allow for high UL94 or EN45545 ratings if the resin is equiped with suitable flame retardens.