Size Guidelines

Thermofix Heatshrink Tube Selection Chart

These charts below are useful for the selection of heatshrink. The “lay flat” dimension of heatshrink is commonly used with large diameter heatshrink tubes, where the heatshrink is measured flattened out and the flat dimension measured. The table below is used to convert this into a diameter as used by Thermofix. The busbar table is useful to work out heatshrink requirements for busbars. It is important to allow for bends and use one size up if the bar has many bends. This makes it easier to get the heatshrink onto the bar. BUSBAR Heatshrink Selection