Description
FP-301-3/4-CLEAR Heat Shrink FP-301 3/4 Inch, Clear — BOLTON SKU 59288.
About the FP-301 Heat-Shrink 3/4 Heat Shrink Tubing
3M FP-301 is a flexible thin-wall polyolefin heat-shrink tubing with a 2:1 shrink ratio, supplied here in the 3/4 in size in clear. 3M gives a minimum shrink temperature of 100 °C (212 °F) for all FP-301, continuous operation from −55 °C to +135 °C, and short-period exposure to 300 °C. The tubing is described as split resistant, mechanically tough, easily marked and resistant to cold flow, and it passes the copper mirror corrosion test. In the 3/4 in size the expanded inside diameter is 0.750 in minimum, recovering to 0.375 in maximum with a nominal recovered wall of 0.030 in. One point matters when specifying the clear grade: 3M states plainly that the clear tubing is not flame retardant or UL listed, and the flammability entry reads “self-extinguish, meets UL 224 all-tubing flame test (except clear)”. Clear meets AS23053/5 Class 2 and is chosen where the splice, marking or conductor beneath must stay visible after recovery.
Key specifications
| Manufacturer part number | FP-301-3/4-Clear (3M) |
|---|---|
| Material | Flexible thin-wall polyolefin |
| Supplied size | 3/4 in |
| Expanded inside diameter (min) | 0.750 in (19.05 mm) |
| Recovered inside diameter (max) | 0.375 in (9.53 mm) |
| Recovered wall thickness (nominal) | 0.030 in (0.76 mm) |
| Shrink ratio | 2:1 |
| Minimum shrink temperature | 100 °C (212 °F) |
| Operating temperature | −55 °C to +135 °C continuous; 300 °C short periods |
| Specific gravity (clear) | 0.93 |
| Dielectric strength | 900 V/mil |
| Corrosion resistance | Non-corrosive (copper mirror) |
| Standard met | AS23053/5 Class 2 (clear) |
| Flammability — clear grade | 3M states the clear tubing is not flame retardant or UL listed |
| Standard packaging | Four-foot lengths and spools |
Typical applications
Thin-wall polyolefin tubing of this type is used as shrink-fit insulation over cable splices and terminations, as lightweight harness covering, and for wire marking, bundling and component packaging. The clear grade is chosen specifically where a printed marker, a solder joint or a conductor colour has to remain readable through the recovered wall — useful during inspection and troubleshooting. Because 3M excludes clear from the flame-retardant and UL claims that cover the opaque colours, select an opaque colour instead where a flame-retardant or UL-recognised sleeve is required by the installation standard.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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