SUMITUBE™ K2

CatalogNo.875

[Highly heat/oil/chemical resistant, clear, flame-retarded heat-shrinkable tubing]SAE/UL recognized

■ SAE-AMS/UL recognized
■ Flame-retarded
■ Transparent colors
■ Thin wall
■ Semi-rigid (more flexible than SUMITUBE K)
■ Highly resistant against oil and chemicals
■ Available on spools
✔RoHS directive 10 substances

Applications

■ Insulation, protection and reinforcement for termination and joints of electric wire
■ Protection for wire and devices which are used under high temperature or exposed to chemicals and oils
■ Mechanical protection for metal wire
■ Fixing and protection of cable markers
■ Insulation and protection of thermistors, resistors and capacitors

Basic Properties

Category Heat shrink tubing
Material Irradiated cross-linked semi-rigid flame-retarded PVDF
Flammability Flame Retarded
Shrink temperature min. 150℃
Shrink ratio min. 50%
Longitudinal change -10 to 5%
Continuous operating temperature -55 to 175℃
Specifications/Approvals

SAE-AS23053/18 Class 1

UL224

　　File No. E70631 Catalog No. SUMITUBE™ K2 or 875

　　Flammability: VW-1

Electrical Appliance and Material Safety Law (Japan)

Flammability rating (-F-) test registration No.: F-STS3-017 to F-STS3-020
Marking on Surface ―
Available colors Black, Red, Green, Blue, White, Clear
Flexibility Semi-rigid
Environmental Compliance RoHS,ELV
Industry Automotive,Military / Aerospace,Construction machinery,Industrial machinery,Electronics

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      (before aging)
Elongation               (before aging)
Elongation               (after aging)
Low temperature flexibility
Heat shock
Specific gravity		 min. 24.1MPa
min. 200%
250℃ x 7 days, min. 100%
-55℃ x 4 hours, no crack
275℃ x 4 hours, no crack
max. 1.90		 37.8MPa
404%
383%
Pass
Pass
1.75
Electrical Dielectric strength
Volume resistivity		 min. 15.7kV/mm
min. 1.0 x 1011Ω・cm		 35.4kV/mm
2.8 x 1015Ω・cm
Chemical

Transparent stability
Fluid resistance

　　Tensile strength
　　Dielectric strength
　　Elongation
Flammability

200℃ x 24 hours, no change
After immersion in the fluids specified

in SAE-AS23053 at 24℃ for 24 hours,
　　min. 13.9MPa
　　min. 15.7kV/mm
　　min. 100%
Flame-retarded, pass VW-1

Pass

37.4MPa
25.2kV/mm
419%
Pass

Sizes