Electrical insulation is used to create a barrier between electrically conductive parts and prevent unwanted current flow. In many electrical and electronic designs, space is limited, which requires insulation materials that can provide good electrical insulation even in thin dimensions.
At Cabseal, we manufacture electrical insulation parts made of polyester film. The material can be cut and die-cut into components with custom outer dimensions, holes, and recesses to fit directly into the specific design.
Right from the startPolyester film as an electrical insulating material
Polyester film combines electrical insulation properties with low material thickness and good dimensional stability. This makes the material useful when electrically conductive parts need to be separated without the insulation taking up much space.
For example, the material can be used as a barrier between components, printed circuit boards, metal parts, and other conductive surfaces. Because the film is thin, it can also be used in designs where clearances and tolerances are tight.
Insulation requirements determine the choice of polyester film
When it comes to electrical insulation, it is not enough simply to note that a material is non-conductive. The thickness and electrical properties of the polyester film in question must be compatible with the design’s voltage and insulation requirements.
Temperature, mechanical stress, and how the component is assembled must also be taken into account. Holes, edges, and bushings, for example, can affect the distances between conductive parts and must therefore be considered as early as the design phase of the insulation component.
Materials we use to manufacture
Punched and Cut Insulation Components
Polyester film can be processed into thin insulating parts that conform to the component’s geometry. Just as with the manufacture of our die-cut gaskets and seals, holes, cutouts, and external dimensions can be customized according to drawings and design specifications.
Do you have a drawing or specification for an electrical insulation component? Contact us at Cabseal, and we'll help you!
