Kosoo k-2 (gys) heat shrink tube Application KOSOO K-2 (GYS) is one of the KOSOO K-2 series of heat shrinkable tubing. It is a co-extruded, green and yellow striped, heat shrinkable tubing designed for use in earth sleeving. Features/Benefits Shrinkage ratio: 3:1 Flexible, high flame retardance Excellent physical, chemical and electrical properties, for highly reliable, general purpose tubing Operating Temperature Range Operating temperature range: -55+óGÇP¦Æ~135+óGÇP¦Æ Minimum shrink temperature: 70+óGÇP¦Æ PACKED IN ROLLS