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PET Expandable Braided Sleeving
PET Series · Expandable wire and harness bundling sleeve

Technical datasheet · WCW (Shenzhen Wahchangwei Industrial Co., Ltd.)
DS-PET-2026-01
Rev. 2026-10
Flame retardant
Construction: braided from high-strength eco-friendly PET monofilament. Highly expandable — the sleeve stretches out to slip over connectors, plugs and assembled bundles, then closes back down for a snug fit. Flame retardant, abrasion resistant and heat dissipating; resists aging, UV and mild acid / alkali / salt exposure. This is a mechanical protection and bundling sleeve — the wires inside keep their own electrical insulation. All sizes share one rating: −60 °C to +155 °C. Standard color black; other colors, cut lengths and custom constructions on request.

1 · How to Specify — Model Code

Each model is selected from four parameters, encoded in the ordering code:

Parameter Meaning
ANumber of filaments per braiding segment
BSingle-filament (monofilament) diameter
CNumber of braided strands
DFlattened width of the sleeve

In the ordering code the leading digits encode the construction parameters A, B and C — four standard constructions per size (120 / 125 / 320 / 325 series) — and the trailing three digits give the size class D. Example: 125024 = 125-series construction, size class 24# (nominal diameter 3–6 mm).

2 · Sizes & Models

Size Class 120 Series 125 Series 320 Series 325 Series
24#120024 · 3–6 mm125024 · 3–6 mm320024 · 4–8 mm325024 · 4–8 mm
32#120032 · 4–8 mm125032 · 4–8 mm320032 · 5–10 mm325032 · 5–10 mm
36#120036 · 5–10 mm125036 · 5–10 mm320036 · 6–12 mm325036 · 6–12 mm
40#120040 · 6–12 mm125040 · 6–12 mm320040 · 7–14 mm325040 · 7–14 mm
48#120048 · 7–14 mm125048 · 7–14 mm320048 · 8–16 mm325048 · 8–16 mm
56#120056 · 8–16 mm125056 · 8–16 mm320056 · 10–20 mm325056 · 10–20 mm
64#120064 · 9–18 mm125064 · 9–18 mm320064 · 12–24 mm325064 · 12–24 mm
72#120072 · 10–12 mm125072 · 10–12 mm320072 · 15–30 mm325072 · 15–30 mm
96#120096 · 12–24 mm125096 · 12–24 mm320096 · 20–40 mm325096 · 25–50 mm
120#120120 · 15–30 mm125120 · 15–30 mm320120 · 30–70 mm325120 · 35–100 mm

Diameter ranges are nominal (minimum–maximum accommodated bundle diameter). Because the braid is expandable, one size covers a range of bundle diameters and stretches over in-line connectors during assembly.

3 · Ratings & Properties

MaterialHigh-strength eco-friendly PET monofilament braid
Operating temperature−60 °C to +155 °C (all sizes)
FlammabilityFlame retardant, self-extinguishing
DurabilityAging resistant, UV resistant, abrasion resistant, acid / alkali / salt resistant
FunctionMechanical protection and bundling — not an electrical insulator; use over pre-insulated wires and cables
ColorsStandard black; other colors on request

4 · Typical Applications

Wire and cable bundling inside electronic and electrical equipment: automotive harnesses, PC cases, speakers, headlamps, home appliances and control cabinets. The expandable braid installs quickly over assembled harnesses — no need to thread wires through one by one — and keeps bundles tidy while letting heat escape and simplifying later rework. Also used as a covering layer combined with WCW fiberglass and silicone sleeving where a harness passes through hot or abrasive zones.

5 · Compliance & Documents

UL recognitionNot UL-filed — the PET series is specified for mechanical bundling and protection duty; ask us for third-party test reports where required
Quality systemISO 9001:2015 · IATF 16949:2016 · ISO 14001:2015 · ISO 45001:2018
On requestRoHS, REACH SVHC, halogen-free statements; certificate copies for supplier qualification and PPAP
WCW · Shenzhen Wahchangwei Industrial Co., Ltd. — source manufacturer since 2002. UL / CUL certified since 2003, IATF 16949:2016, exporting to 60+ countries.
Your contact: Liming Wu (Andy), Sales Manager · Email wcw-sz@szwcw.com · Tel / WhatsApp +86 150 1354 6673 · HQ: No.25 Langbei 6th Industrial Area, Baolong Street, Longgang, Shenzhen 518111, China.
Data believed accurate as of the revision date; confirm critical values against your own qualification testing.