Raychem RT-375 1/2″ is a thin-wall clear heat shrink tubing with an inside diameter of 12.7 mm as supplied, recovering to 6.4 mm at a 2:1 shrink ratio. Manufactured from a modified fluoropolymer, RT-375 combines exceptional optical clarity with high-temperature performance, chemical resistance, and flame resistance. The thin wall — approximately 40% thinner than standard polyolefin heat shrink — gives excellent flexibility while maintaining full visibility of the wire or component inside. Operating temperature range is −55 °C to +150 °C with a minimum full recovery temperature of 150 °C. Sold per metre, one continuous cut length.
Specifications
| Property | Value |
|---|---|
| Manufacturer | Raychem |
| Series | RT-375 |
| Material | Modified fluoropolymer |
| Colour | Clear |
| Shrink ratio | 2:1 |
| ID as supplied | 12.7 mm |
| ID after recovery | 6.4 mm |
| Wall type | Thin-wall, single wall |
| Operating temperature | −55 °C to +150 °C |
| Min recovery temperature | 150 °C |
| Flame resistance | Yes |
| SKU | RT-375-1/2-X-SP |
| Sold as | Per metre |
When to Use RT-375
RT-375 is used to protect wire identification labels — the small text labels that identify individual circuits by function (“Inj 1”, “Inj 2”, “ECT”, “OilP”, “TPS+”, etc.). Write or print the label on a polyester sleeve or label tape, slide it onto the wire, then apply RT-375 over it. The heat recovery locks the label in place; the transparent wall keeps the text readable for the life of the harness.
RT-375 Size Range
| Size | ID supplied | ID recovered | SKU |
|---|---|---|---|
| 3/16″ | 4.8 mm | 2.4 mm | RT-375-3/16-X-SP |
| 1/4″ | 6.4 mm | 3.2 mm | RT-375-1/4-X-SP |
| 3/8″ | 9.5 mm | 4.8 mm | RT-375-3/8-X-SP |
| 1/2″ | 12.7 mm | 6.4 mm | RT-375-1/2-X-SP |
| 3/4″ | 19 mm | 9.5 mm | RT-375-3/4-X-SP |
Browse all sizes in the Raychem RT-375 category.
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