Flame Retardant Adhesive-Lined Heavy Wall Heat Shrink Tubing

Category：Heat shrink tube
color: Black
shrink ratio: 3：1
Product description：Flame-retardant dual-wall heavy heat shrink tubing SBRSW — 3:1 ratio, waterproof adhesive seal, RoHS. For cable splices & terminations. OEM Dongguan. USA/EU export.
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Worlder Special Materials (DongGuan) Co., Ltd manufactures SBRSW flame retardant adhesive-lined heavy wall cross-linked polyolefin heat shrink tubing — a dual-wall heat-shrinkable sleeve engineered to insulate, mechanically protect, and environmentally seal electrical cable splices, terminations, lugs, and connectors where maximum flame retardancy, moisture resistance, and long-term reliability are required.
The heavy-wall outer layer uses flame-retardant cross-linked polyolefin for high dielectric strength, impact resistance, and abrasion protection. During heating, the inner thermoplastic adhesive liner melts and flows, bonding to the substrate and forming a continuous moisture-proof seal — even over irregular shapes, braided cables, and oversized connectors. With 3:1 shrink ratio, one size covers a wide diameter range.
SBRSW is designed not to split or rupture during installation — even under overheating. Operating range: -45°C to +125°C · Full recovery at ≥125°C · RoHS compliant.
Applications: automotive wire harnesses, power utility joints, underground/outdoor splices, marine & industrial systems, telecom infrastructure, OEM cable accessory kits — exported to USA, UK, Germany, France, Italy, Belgium.

Features

● 3:1 shrink ratio, not Flame-retardant

● Seal and protect cable splice and terminations

● Rugged mechanical protection

● Complete moisture sealing

● Strain relief for delicate wire connections

● High resistance to impact and abrasion

● Thermoplastic adhesive liner for complete environmental protection and insulation

● Continuous operating temperature:-45℃-125℃

● Fully shrink temperature: 125℃

Technical Data

Property	Test Method	Standard	Typical Performance
Tensile Strength(MPa)	ASTM D2671	≥12	12.35
Elongation(%)	ASTM D2671	≥200	468.62
Tensile Strength after aging (MPa)	Ul224 158℃X168hr	≥8.4	11.38
Elongation after aging(%)	Ul224 158℃X168hr	≥200	390.25
Dieletric strength(kV/mm)	IEC 60243	≥15	20.34
Volume resistivity(Ω.cm)	IEC 60093	≥1X10¹⁴	2.52X10¹⁴

Adhesive

Property	Test Method	Standard
Water Absorption	ASTM D570	＜0.2%
Sofening Point (℃)	ASTM E28	95±5
Strength of peeling(PE)	ASTM	120N/25mm
Strength of peeling(AL)	ASTM D 1000	80N/25mm

Dimensions

Size	Expanded	After Recovery				Standard Package M/pc
mm	Inner Diameter Min(mm)	Inner Diameter Max(mm)	Jacket Thickness mm	Adhesive Thickness mm	Total Wall Thickness m	Standard Package M/pc
6.0/2.0	6.0	2.0	1.40 ±0.20	0.45 ±0.15	1.85 ±0.30	1.22
8.0/2.0	8.0	2.0	1.40 ±0.20	0.45 ±0.15	1.85 ±0.30	1.22
10.2/3.0	10.2	3.0	1.40 ±0.20	0.50 ±0.15	1.90 ±0.30	1.22
12.0/3.0	12.0	3.0	1.40 ±0.20	0.50 ±0.15	1.90 ±0.30	1.22
16.0/5.0	16.0	5.0	1.50 ±0.20	0.55 ±0.20	2.15 ±0.35	1.22
19.1/5.6	19.1	5.6	1.80 ±0.20	0.60 ±0.20	2.40 ±0.40	1.22
22.0/6.0	22.0	6.0	2.00 ±0.30	0.60 ±0.20	2.60 ±0.40	1.22
25.0/8.0	25.0	8.0	2.00 ±0.30	0.65 ±0.20	2.70 ±0.40	1.22
28.0/6.0	28.0	6.0	2.40 ±0.30	0.95 ±0.25	3.30 ±0.45	1.22
33.0/8.0	33.0	8.0	2.50 ±0.30	0.80 ±0.25	3.30 ±0.45	1.22
38.1/12.0	38.1	12.0	2.40 ±0.30	0.80 ±0.25	3.30 ±0.45	1.22
43.2/12.7	43.2	12.7	2.40 ±0.30	0.80 ±0.25	3.30 ±0.45	1.22
55.0/16.0	55.0	16.0	2.40 ±0.30	0.80 ±0.25	3.30 ±0.45	1.22
65.0/19.0	65.0	19.0	2.50 ±0.30	0.80 ±0.25	3.30 ±0.45	1.22
75.0/22.0	75.0	22.0	2.90 ±0.30	0.80 ±0.25	3.70 ±0.50	1.22
85.0/25.0	85.0	25.0	2.90 ±0.30	0.80 ±0.25	3.70 ±0.50	1.22
95.0/30.0	95.0	30.0	3.00 ±0.30	0.80 ±0.25	3.70 ±0.50	1.22
115.0/34.0	115.0	34.0	3.00 ±0.30	0.80 ±0.25	3.70 ±0.50	1.22
140.0/42.0	140.0	42.0	3.00 ±0.30	0.80 ±0.25	3.70 ±0.50	1.22
160.0/50.0	160.0	50.0	3.10 ±0.30	0.80 ±0.25	3.70 ±0.50	1.00
180.0/65.0	180.0	65.0	3.10 ±0.30	0.80 ±0.25	3.70 ±0.50	1.00
200.0/69.0	200.0	69.0	3.10 ±0.30	0.80 ±0.25	3.70 ±0.50	1.00
230.0/78.0	230.0	78.0	3.10 ±0.30	0.80 ±0.25	3.70 ±0.50	1.00