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Silicone insulation tubing

Silicone insulation tubing

Silicone insulation tubing can provide a flexible insulating sleeve where the selected compound and wall are suitable for the electrical application. Define the voltage, temperature and mechanical exposure before choosing a size. Insulating silicone and conductive silicone formulations have different functions and should not be substituted for each other.

The inside diameter must accommodate the conductor or component without excessive stretching, while the outside diameter must fit the available space. Check wall thickness at bends and contact points, and avoid sharp edges that can cut the sleeve. Color can assist assembly identification but does not define an electrical rating.

An insulating sleeve is not automatically an electromagnetic shield or a static-dissipative tube. If the same geometry is proposed for fluid service, assess its pressure or vacuum capability separately. For vacuum duty, the relevant question is whether the tube resists collapse under the specified temperature, bend and support conditions.

Silicone Tubing Size Catalog

Compare inside diameter, outside diameter and listed wall thickness across silicone tube ranges. Confirm the material grade and application requirements for the selected part.

Food grade silicone tube

Compare Inside Diameter and Outside Diameter in mm, together with the listed Thickness and Colour. The cross-section drawing identifies the bore and outside diameter; confirm the selected tube material and service requirements.

Dimension guide
Tube cross section — Outside Diameter and Inside Diameter
Profile reference. Use the dimension letters and units in the selected table and confirm the part drawing.
Product appearance
Food grade silicone tube — product view
Illustrative product appearance. Refer to the selected row and part drawing for dimensions.
Part No.Inside DiameterOutside DiameterThicknessColour
FST0.5*2.10.52.10.8Transparent
FST0.8*40.841.6Transparent
FST1*3131Transparent
FST1.6*4.81.64.81.6Transparent
FST2*3230.5Transparent
FST2*4241Transparent
FST2.4*42.440.8Transparent
FST2.4*5.62.45.61.6Transparent
FST2.5*42.540.75Transparent
FST3*4340.5Transparent
FST3*5351Transparent
FST3*6361.5Transparent
FST3*8382.5Transparent
FST3.2*6.43.26.41.6Transparent
FST4*5450.5Transparent

Need a different size? Share your drawing, mating dimensions and intended use to discuss a suitable part.

Discuss Your Requirements

Product specifications

Product form
Silicone insulating sleeve for a defined electrical application.
Electrical duty
Specify voltage, temperature and a suitable insulating formulation.
Geometry
Match inside clearance, outside envelope and wall thickness to the covered component.
Mechanical protection
Check bending and sharp-edge contact without excessive stretching.
Separate functions
Assess shielding, static dissipation or fluid-service ratings independently.

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