You've got a thick splice sitting bare on the bench and you need it sealed, labelled, and done before the next job. This 20 mm red heatshrink does that in one pass. Slide it over the joint, hit it with a heatgun or even a lighter, and it snaps down to half its diameter. The polyolefin is flame-resistant and rated to UL224 E180908 at 125 °C, so it's not just a colour band — it's a proper insulating sleeve. Red keeps your positive runs or high-current splices identifiable at a glance in a crowded loom. No solder, no waiting for adhesive to cure. One heat pass and it's locked in
| brand | Jaycar |
| colour | Red |
| inner_diameter_mm | 20 |
| shrink_ratio | 50% |
| material | Flame-resistant polyolefin |
| certification | UL224 E180908 |
| temperature_rating | 125 °C |
| shrink_method | Heatgun, hairdryer, gas burner, or match |