Automotive Oil-Resistant Heat Shrink Tubing (YRS)

Cross-linked polyolefin tubing engineered for automotive fuel line protection, wire harness sealing, and EV cable management. Qualified to IATF 16949 with third-party oil resistance testing.

Models YRS-5 / YRS-6 / YRS-8 / YRS-10 / YRS-12
Recovered wall 0.70–0.82 mm by size
Standards IATF 16949:2016, RoHS, Customer Spec
Contact our engineers.
Automotive Oil-Resistant Heat Shrink Tubing (YRS)

Product Overview

YRS series heat shrink tubing is a single-wall or dual-wall cross-linked polyolefin product designed specifically for automotive fuel line and wire harness applications. The outer layer provides abrasion resistance and fluid barrier properties; an optional adhesive inner layer creates a waterproof seal at cable exits and connector transitions.

Performance Data

PropertyTest MethodRequirementTypical Value
AppearanceVisualSmooth surface, no defectsPass
Material—Cross-linked polyolefin—
Full recovery temperature—110°C minimum110°C
Continuous operating range—-55°C to 105°C-55°C to 105°C
Tensile strengthASTM D638≥15 MPa16 MPa
Elongation at breakASTM D638≥400%420%
Longitudinal change—-3% to +3%-1%
Wall bias—≤20%12%
After aging: tensile (120°C, 24 h)ASTM D638≥12 MPa13.5 MPa
After aging: elongation (120°C, 24 h)ASTM D638≥200%240%
Stress cracking (50°C, 24 h)—No crackingPass
Cold bend (-35°C, 1 h)—No crackingPass

Internal test data. Questions on parameters? Contact our engineers.

Size Specifications

ModelFuel Line OD (mm)Expanded ID (mm)Wall — Exp. (mm)Recovered ID (mm)Wall — Rec. (mm)Spool (m)
YRS-5Φ3.505.3 ±0.30.70 ±0.043.0 ±0.31.0 ±0.05200
YRS-6Φ4.767.0 ±0.30.74 ±0.044.0 ±0.41.0 ±0.05100
YRS-8Φ6.359.0 ±0.30.75 ±0.055.6 ±0.41.0 ±0.05100
YRS-10Φ8.0010.5 ±0.30.80 ±0.057.0 ±0.41.1 ±0.05100
YRS-12Φ10.0012.5 ±0.30.82 ±0.058.0 ±0.41.2 ±0.0550

Standard color: black. Custom colors available — contact our sales team.

Applications

Automotive Fuel Lines

YRS tubing slides over nylon or PVF fuel lines and shrinks to form a smooth, oil-resistant outer jacket. Verified by 72-hour fuel and brake fluid immersion tests.

Wire Harness Protection

Seals against splash exposure to fuel, oil, and road grime at connector transitions and harness branches. Optional adhesive lining keeps moisture out of splices.

EV Cable Management

Physical barrier over orange HV cable jacketing at grommet passes and bend points. Custom colors support high-voltage identification schemes.

Standards

FAQ

Can YRS tubing be used on EV high-voltage cables?
YRS is designed for fuel line and low-voltage harness protection. For EV high-voltage cables (rated 600 V+), use our SRS dual-wall adhesive-lined series, which provides a sealed insulation system and is available in orange for HV identification.
What heat source do I need to shrink YRS?
A standard heat gun set to 110-130°C is sufficient. For batch processing, infrared tunnels or convection ovens at 120-140°C for 30-60 seconds work well.
How does YRS perform after long-term fuel exposure?
Samples immersed in Honda DOT 3 brake fluid at 25°C for 72 hours retained ≥14 MPa tensile strength and ≥250% elongation — well above the ≥10 MPa minimum.
Can I get YRS in colors other than black?
Black is standard. Custom colors (red, blue, yellow, green, orange for EV) available with adjusted MOQ.
Do you offer cut-to-length pieces?
Yes. Standard spools are 200/100/50 m. Pre-cut lengths from 50 mm to 1,000 mm for automated assembly.

Still deciding? Contact our engineers.

Tell us your cable size, voltage and environment. We reply within one business day.

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