Technical data: Temperature range: -55 to +125°C. Shrinkage ratio: 2:1, 4:1. Minimum shrink temperature: +115°C. Color: red Non-self-extinguishing, halogen-free tubes. UV resistant. REACH, RoHS compliant. Intended use: Universal heat shrink tubing is used for electrical insulation, mechanical protection, and moisture protection. They take the shape of the object on which they are shrunk, creating a tightly adherent layer that provides insulating, anti-corrosion, and decorative protection. ** Illustrative photos.