Flexible flame-retardant heat shrink tube "Sumi Tube B2(3X)"
High inner diameter shrinkage rate! Introducing flame-retardant heat shrink tubing that meets UL224 and CSA standards.
"Sumitube B2 (3X)" is a high-shrink-rate flame-retardant heat shrink tube that complies with UL and CSA standards. It shrinks to one-third of its original inner diameter with a high inner diameter shrinkage rate. It is suitable for insulation, protection, and reinforcement of objects with significant step differences, as well as for color identification and bundling of wires. It can be produced in ten vibrant colors, including green, blue, and purple. 【Features】 ■ High inner diameter shrinkage rate (shrinks to one-third of its original diameter) ■ UL224 and CSA standard compliant ■ Flame-retardant (does not use chlorine-based flame retardants or specific brominated flame retardants [PBDE, PBB]) ■ Vibrant colors *For more details, please refer to the PDF document or feel free to contact us.
basic information
【Basic Characteristics】 ■Material: Electron beam cross-linked soft flame-retardant polyolefin resin ■Shrinkage temperature: Above 90℃ ■Shrinkage rate ・Inner diameter shrinkage rate: 66% or more ・Length change rate: -15% or more ■Continuous use temperature: -55 to 135℃ *For more details, please refer to the PDF document or feel free to contact us.
Price range
Delivery Time
Model number/Brand name
Sumi Tube B2 (3X)
Applications/Examples of results
【Usage】 ■ Insulation, protection, and reinforcement of objects with significant height differences ■ Color identification and bundling of electrical wires *For more details, please refer to the PDF document or feel free to contact us.