Double-wall heat shrink tubing

KOSOO DW (3: 1,4: 1) Department of soft, flame retardant, radiation crosslinking with plastic double-wall heat-shrinkable tubing, inner lines with good hot melt adhesive properties, the outer layer of soft flame radiation According crosslinked polyolefin, the shrinkage rate of 3-4 times, after shrinking can connect both ends of the hot melt adhesive material is completely sealed, easy construction, no maintenance, resistant to harsh environment, the impact of moisture and the like, to protect components effect , used in the cable connection, cables and components in sealed, waterproof, corrosion and insulation, repair damaged cable insulation layer. ★ Features shrinkage ratio? 3: 1, 4: 1, sealing and insulation can be achieved with a cable connector which with good adhesion of hot melt adhesive, enabling cable connections and electronic components of the seal? moisture-proof, waterproof, corrosion? good physical properties, chemical properties and electrical properties? hot melt adhesive layer of plastic, rubber and metal have good adhesive properties? no chlorine compounds PCBS, PCPS and polybrominated diphenyl PBBs, polybrominated oxide biphenyl PBBOs, polybrominated diphenyl ethers PBBEs, PBDEs and other substances harmful to the environment, in line with the European RoHS environmental directive and SONY SS00259 standards of environmental protection requirements. ? ★ temperature range continuous use temperature: -55 ℃ ~ 110 ℃ lowest initial shrinkage temperature:? 80 ℃ Minimum fully recovery temperature:? 110 ℃ ★ standard UL224 125 ℃ 600V AMS-DTL-23053/4 Class3 ★ performance parameters characteristic index Test Method Requirements typical physical properties: tensile strength 10.3MPa min ASTM D 638 ≥12MPa Elongation at break 200% ASTM D 638 ≥400% thermal shock (250 ℃, 4 hours) ASTM D 2671 No cracks through low-temperature flexibility. (-55 ℃, 4 hours) ASTM D 2671 No cracks by thermal aging 158 ℃, anti-aging after 168 hours or more 70% ASTM D initial values ??of tensile strength after aging 638 ≥90% elongation at break of 100% min. ASTM D 638 ≥300% electrical properties: dielectric breakdown voltage and 2500V, 60sec, no breakdown by ASTM D 2671 volume resistivity 1014Ω cm min ASTM D 876 ≥1014Ω cm chemical characteristics:?.? copper corrosion (158 ℃, 168 小时) ASTM D 2671 No corrosion on copper stability (158 ℃, 168 Hours) Elongation ≥100% ASTM D 2671 flame retardant by ALL TUBING FLAME TEST UL224 by