SUMITUBE™ A4
CatalogNo.858
[Weather resistant heat-shrinkable tubing]
■ Highly weather resistant
■ Opaque and bright colors
✔RoHS directive 10 substances
Applications
■ Insulation and protection for outdoor applications
■ Insulation and protection for antennas
■ Insulation and reinforcement for cable terminals
■ Color identification and bundling for electric wires
■ Corrosion protection for pipes
Basic Properties
| Category | Heat shrink tubing |
|---|---|
| Material | Irradiated cross-linked flexible polyolefin |
| Flammability | Non Flame Retarded |
| Shrink temperature | min. 110℃ |
| Shrink ratio | min. 50% |
| Longitudinal change | min. -15% |
| Continuous operating temperature | -55 to 105℃ |
| Specifications/Approvals | SFP standard (RE4-3684) |
| Marking on Surface | ― |
| Available colors | Black, Brown, Red, Orange, Yellow, Green, Blue, Purple, Gray, White, Clear |
| Flexibility | Flexible |
| Environmental Compliance | RoHS,ELV |
| Industry | Construction machinery,Industrial machinery,Electronics,Power supply / Communication |

Oil/Chemical resistance (room temperature)
| Gasoline | Gas oil | Lubricant | Alcohol | Acid | Alkali |
|---|---|---|---|---|---|
| ○ | ○ | ○ | ◎ | ○ | ◎ |
◎:Very good ○:Good △:Not applicable in some cases
| Properties | Items | Requirements | Typical Values * |
|---|---|---|---|
| Mechanical | Tensile strength Elongation Specific gravity Hardness (Shore D) |
min. 10.4MPa min. 200% ― ― |
19.2MPa 455% 0.92 42 |
| Electrical | Dielectric withstand Volume resistivity |
AC2.5kV x 60 sec., no breakdown min. 1.0 x 1014Ω・cm |
Pass 1.6 x 1017Ω・cm |
| Chemical | Water absorption Flammability Weather resistance Outdoor exposure test*2 Weatherometer |
23℃ x 24 hours, max. 0.20% Flammable ― ― |
0.10% ― Colors can be identified for 2 years Elongation 100% of original value after 1,000 hours Elongation 77% of original value after 2,000 hours |
Sizes



