Premium Heat Shrink Tubing
For Every Application
From standard electrical insulation to extreme-environment protection, we deliver high-quality heat shrink tubing engineered for reliability and performance.
Standard Heat Shrink Tubing
Industry-standard polyolefin and PVC solutions for everyday electrical insulation and cable management.
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O2B2 - Flexible Polyolefin, Dual Wall Adhesive Lined, 2:1 Ratio - 4Ft. Length
SUMITUBE O2B2 is a flexible, flame-retarded polyolefin heat-shrinkable tubing with a modified polyamide adhesive inner wall which melts and flows, sealing components contained within and meets the material and functional requirements of AMS-DTL-23053/4, Class 2. O2B2 is recommended for applications in environmental conditions that require sealing against moisture and water or other contaminants.
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W3B2 - Dual Wall Adhesive, 3:1 Ratio - 4Ft. Length
SUMITUBE W3B2 is a flexible, flame-retarded heat-shrinkable polyolefin tubing, with a thick wall modified polyamide adhesive which melts and flows, encapsulating and sealing components contained within. SUMITUBE W3B2 complies with the requirements of AMS-DTL-23053/4, Class 3, in the sizes marked on the data sheet. SUMITUBE W3B2 is recommended for applications requiring water-proofing for light cable and wire harnesses and protection of connector components.
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B2 - Colored Flexible Polyolefin, 2:1 Ratio - Spooled
SUMITUBE B2 is a Colored Flexible Polyolefin, 2 to 1 Ratio, for clear we also have A2 product.
SUMITUBE B2 is a very flexible, flame-retarded, radiation-crosslinked heat shrinkable polyolefin tubing which meets all of the material and functional requirements of Military Specification AMS-DTL- 23053/5, Class 1 and Class 3. B2 is recommended for use in general purpose applications such as wire marking, color coding, and electrical insulation of light wire harness assemblies. For higher expansion ratio versions see B2(3X), B2(4X), and B2(4XC). -
B2(3X) - Colored Flexible Polyolefin, 3:1 Ratio - Spooled
SUMITUBE B2(3X) is a very flexible, flame-retarded, heat-shrinkable polyolefin tubing. B2(3X) is overexpanded to have a recovery ratio of 3 to 1, as opposed to the normal 2 to 1 recovery from the B2 series. B2(3X) is recognized by UL under Subject 224 as 125ºC 600V with a VW-1 rating. SUMITUBE B2(3X) meets the material and functional properties of AMS-DTL-23053/5, Classes 1 & 3, with exception to dimensions. B2(3X) is recommended for use in general purpose applications for protection of components in light wire harness assemblies. It can be used where oversized sub-components prevent the use of a standard heat shrinkable tubing. It can also provide the user with better economies, as one size tubing can often replace 2 standard 2:1 expanded tubing sizes, thereby reducing inventories.
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KH200(TW)/KH230(TW) - Flexible Flame-Retardant Fluoroelastomer, 2:1 Ratio - Spool
Similar to KH230, but with a thinner wall.
SUMITUBE KH200(TW)/KH230(TW) is a highly heat resistant, highly flexible heat-shrink tubing made from cross-linked flexible flame-retarded fluoroelastomer. The KH230(TW) offers protection for wire and devices which are used under high temperature or exposed to chemicals and oils. KH200(TW) is the clear version.
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FE3 - Fluid Resistant, Flame Retarded Fluoroelastomer, 2:1 Ratio - Spool
SUMITUBE FE3 is a rubber-like, highly fluid resistant, flame retarded fluoroelastomer heatshrinkable tubing which meets all of the material and functional requirements of military specification SAE-AS23053/13.
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KH230 - Flexible, Fluid Resistant, Flame Retarded, Fluoropolymer, 2:1 Ratio - Spool
SUMITUBE KH 230 is a highly flexible and fluid resistant, inherently flame retarded fluoropolymer heat-shrinkable tubing that meets the material and functional requirements of military specifications AMS-DTL-23053/13. It is also available in a thin wall version, KH 230(TW).
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K - Clear High Temp Semi Rigid, 2:1 Ratio - 4Ft. Length
SUMITUBE K is a translucent semi-rigid, inherently flame retarded, heat-shrinkable PVDF tubing, that is recognized by Underwriters Laboratories (UL) Subject 224 with a VW-1 rating and meets or exceeds the requirements of AMS-DTL-23053/8C. SUMITUBE K is recommended for applications for strain relieving components such as soldered connections and splices which are in high continuous operating temperature environments.
Heavy-Duty Industrial Tubing
Engineered for demanding applications requiring enhanced durability, flame resistance, and environmental protection.
HEATSHRINK TUBING
Largest stocking supplier of Polyolefin, Kynar and Elastomer Tubings. Flexible, semi-rigid and rigid heatshrink tubings. 2:1, 3:1 and 4:1 shrink ratios available. Thin wall, dual wall, heavy wall and encapsulant.
BRAIDED SLEEVING
General purpose sleeving, heavy duty, high temperature, advanced engineering sleeving, electrical insulation sleeving, specialty sleeving.
HOTY heat-shrink tube
HOTY heat-shrink tube- tubing made of PVC with good price performance for protecting and insulating cables, flame retardant, black design is UV-resistant, shrinking ratio: 2:1.
Shrink tube PROTECT-C
The PROTECT-C shrink tube with adhesive coating inside offers a good chemical resistance and high weather-resistance. The shrink ratio is 3:1.
Specialized Materials
High-performance fluoropolymer and advanced materials for extreme temperature and chemical resistance.
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6 inch Samples
Samples may be requested online. Sample sizes of heat shrink and braided sleeving is not longer than 6 inches. Please enter into the comment field what you would like as a sample. Multiple sample requests will require previous orders with us.
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Protect Against Moisture with Dual Wall Adhesive Heat Shrink Tubing
Dual wall heat shrink tubing protects against moisture and corrosive environments, while providing electrical insulation and mechanical protection using engineered adhesives. Dual wall tubing products consist of a crosslinked outer jacket and an inner layer of adhesive or encapsulant.
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Fluid Resistant & Flame Retarded Heat Shrink Tubing
highly flexible and fluid resistant, inherently flame retarded fluoropolymer heat-shrinkable tubing that meets the material and functional requirements of military specifications
Adhesive-Lined & Environmental Sealing
Marine-grade and waterproof solutions with adhesive lining for superior moisture and environmental protection.
A2(3X) - Clear Flexible, 3:1 Ratio
Clear Flexible Polyolefin, 3 to 1 Ratio, for colors see product B2(3X) SUMITUBE A2(3X) is a very flexible, clear, heat-shrinkable polyolefin tubing. A2(3X) is overexpanded to have a recovery ratio of 3 to 1, as opposed to the normal 2 to 1 recovery.
A4 - Colored Glossy Flexible, 2:1 Ratio
SUMITUBE A4 is a light weight flexible, heat shrinkable polyolefin tubing which has excellent weather (UV) resistance with good electrical properties and chemical resistance.
O2C - Clear Adhesive, 2:1 Ratio
Clear Flexible Polyolefin, 4 foot length, 2 to 1 Ratio, Dual Wall Adhesive Lined, for colors see product O2B2. SUMITUBE O2C is a flexible, clear heat shrinkable polyolefin tubing with a modified polyamide adhesive inner wall that melts and flows to seal components within.