3:1

Features: GLUE INSIDE – When heat is applied, adhesive comes out and seals the connection. This creates waterproof and long-lasting insulation. EASY TO USE – Simply slide heat shrink tube over your connection point and apply heat. Make professional insulated connections in seconds. DUAL WALL TUBING – Provides enhanced protection from wear and tear. Industrial grade tubing is resistant to fluids, heat, and mechanical stretch. [Safety and Environmental Protection] Wonderful heat-shrinkable tubes are UL and CSA certified, RoHS compliant, free of for maldehyde (HCHO), heavy metals and other harmful substances protecting you and your family from toxins. [The rubber liner has good sealing performance] Our heat-shrinkable tube has the advantages of good electrical insulation, good sealing, corrosion resistance and high temperature resistance. Anti-aging, tough, not easy to break. [Easy and fast] You only need to heat it evenly with a hot air blower or a candle to make it shrink. It is a 3:1&4:1 heat shrink ratio and will shrink to the original 1/3&1/4. [Versatile and DIY Helper] High-quality heat shrink tubing, they can be used for solder joint protection, group of lines marking, resistance electric capacity reason protection etc. Note: Make sure temperature of your heat gun is up to 212℉(Fahrenheit), then glue inside will soften and seal the connection. [Great Advantages ] Our heat-shrinkable tube are with glue lined which has the advantages of good electrical insulation, good sealing, corrosion resistance and high temperature resistance. Anti-aging, tough, not easy to break. [A wide range of applications] Shrink tube are mainly used for industrial, ship, wire links, anti-rust and anti-corrosion protection of solder joints, and audio and electrical DIY. Wire ends, harnesses, electronics protection and insulation treatment, fitness equipment parts and steel structure surface protection and so on. [Diversity] We have three kinds of shrinkage (3:1, 4:1) heat shrink tubes for you to choose from. Description Dual wall heat shrinkable tubing is a 3:1,4:1 shrink ratio, flexible tubing, offering the advantages of integral, adhesive-lined construction. The tubing is made from flame retardant, flexible cross-linked polyolefin with an internal layer of excellent hot melt adhesive. The heat-shrinkable outer wall is durable, while maintaining the high flow and excellent adhesion of the inner sealant liner. When heated in excess of 125ºC (257ºF), the tubing rapidly shrinks to a skintight fit, forcing the melted adhesive lining to flow and cover the underlying surface. The adhesive forms a flexible bond with a wide variety of rubbers, plastics and metals. Upon cooling, the adhesive solidifies, forming a permanent, non-drying, flexible and water resistant barrier. Applications Heat shrink tubing can be widely used for wire connection, wire end treatment, solder joint protection, wire harness marking, resistance capacitance metal bar and other insulation protection.Shrink tube are mainly used for industrial, ship, wire links, anti-rust and anti-corrosion protection of solder joints, and audio and electrical DIY. Wire ends, harnesses, electronics protection and insulation treatment, fitness equipment parts and steel structure surface protection and so on. Adhesive Lined Heat Shrink Dual wall adhesive heat shrink tubing offers excellent environmental protection for electronic components, wire splices, wire bundles and harness breakouts. Automotive, truck and marine wiring splices and harness breakouts are quickly and easily protected from harsh environments. Shrink Ratio Our dual wall heat shrink tubing has a 3:1,4:1 shrink ratio. When freely recovered, the tubing will shrink 33%,25% of its as-supplied diameter. The recovered wall thickness of the tubing is proportional to the degree of recovery. The continuous operating temperature range is from -45ºC (-49ºF) to 125ºC (257ºF), with a shrinking temperature minimum of 125ºC (257ºF). 50-200x Heat Shrink Butt Wire Splice Connectors Seal Crimp Terminals Waterproof8.99 USDFree shipping50/200X Insulated Straight Electrical Wire Butt Connectors Crimp Splice Terminal8.99 USDFree shipping5x20mm 6x30mm Quick Blow Fast Acting Glass Fuses Panel Mounted Screw Fuse Holder6.99 USDFree shippingHeat Shrink Bullet Wire Connectors 22-16 AWG Female Male Terminals Crimp US8.99 USDFree shipping400PCS Motorcycle Brass Bullet Connector 3.9mm Male & Female Electrical Terminal12.99 USDFree shippingRed Blue Yellow PVC Insulated Piggyback Wire Crimp Connectors Spade Terminals9.59 USDFree shipping100/200PCS Male Female Bullet Wire Terminal Crimp Connectors 22-10AWG Insulated9.99 USDFree shipping60pcs 2 Pin & 3 Pin 5mm/0.2inch Pitch PCB Mount Screw Terminal Block Connector12.99 USDFree shipping1/0 AWG 3/8″ Gauge Copper Lugs Heat Shrink Ring Terminals Wire Connector kit USA14.99 USDFree shipping2.8mm Pin Plug Electrical Wiring Multi-Connector Terminals 1/2/3/4/6/8 Way Car6.59 USD0.99 USD5/20x In Line Glass Fuse Holder Splash Proof Screw Type 5×20/ 6x30mm Fuse Sleeve6.99 USDFree shipping60/300 Motorcycle Brass Male & Female Bullet Terminal Electrical Wire Connectors8.99 USDFree shipping1000-50X Solder Seal Wire Connectors Butt Terminal Insulated Electrical Wire USA6.99 USDFree shipping50-200pc Heat Shrink Butt Wire Splice Connectors Seal Crimp Terminals Waterproof8.99 USDFree shippingInsulated Electrical Wire Terminals Crimp Connectors Spade Piggback Bullet Kit7.99 USDFree shipping6.3mm Pin Plug Electrical Wiring Multi-Connector Terminals 2/3/4/6/8 Way Car3.99 USD3.99 USDSelf Locking Electrical Cable Connectors CH2 Quick Splice Lock Wire Terminals7.59 USDFree shipping50/100PCS Insulated Spade Male Female Crimp Terminals Electrical Wire Connectors7.99 USDFree shippingHeat Shrink Quick Disconnect Piggyback Terminal 22-10AWG Wire Crimp Connector US9.89 USDFree shipping50/220PCS Heat Shrink Male Female Spade Wire Connectors Terminals Waterproof USA7.99 USDFree shipping400/500x U-shaped Terminal 0.3-6mm² Cold-pressed Connector Cable Wire Connectors12.99 USDFree shipping50/300PCS Nylon Insulated Wire Spade Terminals Cable Crimp Connectors 22-10 AWG6.99 USDFree shipping200PCS 4.0mm Bullet Terminal Car Electrical Wire Female Male Connector Set USA9.99 USDFree shipping50-1000 Solder Seal Sleeve Heat Shrink Butt Wire Connectors Terminals Waterproof7.59 USDFree shipping1/0 AWG-3/8″ Battery Lugs,Heavy Duty Wire Lugs,Ring Terminal ,0 Guage Term 10Pcs13.99 USDFree shipping50/100PCS Wire Ring Terminals Crimp Connector Power Car Audio Ground 22-10AWG8.99 USDFree shipping620PCS 2.54mm Crimp Pin Connector Header Jumper Wire Terminal Housing Kit12.99 USDFree shippingNYLON Fully Insulated FLAG Terminal Connectors 22-10 AWG GAUGE Wire .250 Female8.99 USDFree shipping400/800PCS Male Female Bullet Electrical Wire Connectors Crimp Terminals 3.9mm12.99 USDFree shippingUS100/50pcs Female&Male Spade Insulated Connector Crimp Electrical Wire Terminal5.59 USDFree shipping