+86-17688612661 
Silicone Heat Shrink Tube
01
China Flame retardant-grade Silicone heat-shrink tube factory
Key Features
-
◎ Exceptional Flame Retardancy
The product complies with stringent flame retardancy standards such as UL 94 V-0 or VW-1. It self-extinguishes quickly in an open flame, effectively suppressing fire spread and significantly enhancing electrical safety.
-
◎ Wide Operating Temperature Range
Capable of continuous long-term use in extreme temperatures from -60℃ to 200℃, with short-term tolerance up to 260℃. It performs stably without deformation in harsh environments like high-temperature baking or freezing conditions.
-
◎ Superior Electrical Insulation
Possesses high dielectric strength (typically 19.7 KV/mm to 25 KV/mm) and volume resistivity (≥2×10¹² Ω·cm), offering reliable insulation protection for wires, cables, and electronic components, preventing short circuits and leakage.
-
◎ Excellent Physical & Chemical Stability
High tensile strength (≥6.5 MPa), good elongation, and tear resistance. It also exhibits excellent resistance to acids, alkalis, solvents, oils, and ozone aging, protecting against various chemical corrosions and harsh outdoor environments.
-
◎ Environmental Safety
Complies with environmental directives like RoHS and REACH. It is halogen-free, non-toxic, odorless, and produces low smoke upon combustion, ensuring safety for both people and the environment.
Characteristics
Project |
Fire retardant type |
Shrink Temperature(℃) |
More than 100 |
Temperature Range(℃) |
-50-170 |
Tensile Strength（MPa） |
≥5.0 |
Tearing strength；peeling strength（KN/m） |
≥25 |
Ultimate Elongation（%） |
≥400 |
Pull off permanent deformation（%） |
≥20 |
Rebound degree（%） |
≥25 |
Proportion（G/mL） |
1.2±0.1 |
Dielectric strength（KV/mm） |
≥20 |
Fire retardant grade（UL-94） |
V1 (3mm thickness) |
Hardness（A） |
65±10 |
Application
This product is widely used in fields demanding high safety and reliability:
Product Application
◎ Transportation: Insulation and protection for wiring harness terminals in high-speed trains, military vehicles, ships, and aerospace equipment.
◎ Power & New Energy: Insulation and sealing protection for high-voltage electrical connections in special transformers, motors, photovoltaic inverters, and wind turbine generators.
Product Application
◎ High-End Manufacturing: Cable protection for equipment in petrochemical, metallurgical electronics, and instrumentation industries, offering both corrosion and flame resistance.
◎ Electronics & Electrical Appliances: Insulation sleeving and safety protection for internal cables in household appliances (e.g., coffee makers, water heaters), industrial electrical equipment, and lighting fixtures.
Product specification sheet
Silicone heat-shrink tube(flame retardant)1.7times | ||||||
Specifications |
Before contraction |
After contraction |
Packing |
MOQ |
||
Inner diameter |
Wall thickness |
Inner diameter |
Wall thickness |
|||
1.0 |
1.0-1.5 |
0.5±0.1 |
0.54-0.69 |
0.8±0.15 |
200M |
2000M |
1.5 |
1.5-2.0 |
0.5±0.1 |
0.81-1.03 |
0.8±0.15 |
200M |
2000M |
2.0 |
2.0-2.5 |
0.5±0.1 |
1.08-1.38 |
0.8±0.15 |
200M |
2000M |
2.5 |
2.5-3.0 |
0.5±0.1 |
1.35-1.72 |
0.8±0.15 |
200M |
2000M |
3.0 |
3.0-3.5 |
0.5±0.1 |
1.62-2.07 |
0.8±0.15 |
200M |
1200M |
3.5 |
3.5-4.2 |
0.5±0.1 |
1.89-2.41 |
0.8±0.15 |
200M |
1200M |
4.0 |
4.0-4.8 |
0.5±0.1 |
2.16-2.76 |
0.8±0.15 |
200M |
1200M |
4.5 |
4.5-5.3 |
0.5±0.1 |
2.43-3.1 |
0.8±0.15 |
200M |
1200M |
5.0 |
5.0-5.8 |
0.5±0.1 |
2.7-3.45 |
0.8±0.15 |
200M |
1200M |
5.5 |
5.5-6.5 |
0.5±0.1 |
2.97-3.79 |
0.8±0.15 |
200M |
1000M |
6.0 |
6.0-7.0 |
0.5±0.1 |
3.24-4.14 |
0.8±0.15 |
200M |
1000M |
6.5 |
6.5-7.5 |
0.5±0.1 |
3.51-4.48 |
0.9±0.15 |
200M |
1000M |
7.0 |
7.0-8.0 |
0.5±0.1 |
3.78-4.83 |
0.9±0.15 |
100M |
1000M |
7.5 |
7.5-8.5 |
0.5±0.1 |
4.05-5.17 |
0.9±0.15 |
100M |
1000M |
8.0 |
8.0-9.2 |
0.5±0.1 |
4.32-5.52 |
0.9±0.15 |
100M |
1000M |
8.5 |
8.5-9.7 |
0.5±0.15 |
4.59-5.86 |
0.9±0.15 |
100M |
1000M |
9.0 |
9.0-10.3 |
0.5±0.15 |
4.86-6.21 |
0.9±0.15 |
100M |
1000M |
10 |
10-11.5 |
0.5±0.15 |
5.41-6.9 |
0.9±0.15 |
100M |
500M |
11 |
11-12.5 |
0.5±0.15 |
5.95-7.59 |
0.9±0.15 |
100M |
500M |
10 |
10-12 |
1.0±0.2 |
5.41-6.9 |
1.8±0.2 |
50M |
500M |
11 |
11-13 |
1.0±0.2 |
5.95-7.59 |
1.8±0.2 |
50M |
500M |
12 |
12-14 |
1.0±0.2 |
6.49-8.28 |
1.8±0.2 |
50M |
500M |
13 |
13-15.5 |
1.0±0.2 |
7.03-8.97 |
1.8±0.2 |
50M |
500M |
14 |
14-16.5 |
1.0±0.2 |
7.57-9.66 |
1.8±0.2 |
50M |
500M |
15 |
15-17.5 |
1.0±0.2 |
8.11-10.34 |
1.9±0.2 |
50M |
500M |
16 |
16-18.8 |
1.0±0.2 |
8.65-11.03 |
1.9±0.2 |
50M |
500M |
17 |
17-19.8 |
1.0±0.2 |
9.19-11.72 |
1.9±0.2 |
50M |
300M |
18 |
18-20.8 |
1.0±0.2 |
9.73-12.41 |
1.9±0.2 |
50M |
300M |
19 |
19-21.8 |
1.0±0.2 |
10.27-13.1 |
1.9±0.2 |
50M |
300M |
20 |
20-22.8 |
1.0±0.25 |
10.81-13.79 |
2.0±0.2 |
50M |
300M |
21 |
21-24.5 |
1.0±0.25 |
11.35-14.48 |
2.0±0.2 |
25M |
300M |
22 |
22-25.5 |
1.0±0.25 |
11.89-15.17 |
2.0±0.2 |
25M |
300M |
25 |
25-28.5 |
1.0±0.25 |
13.51-17.24 |
2.0±0.2 |
25M |
200M |
30 |
30-34 |
1.0±0.25 |
16.22-20.69 |
2.0±0.2 |
25M |
200M |
35 |
35-40 |
1.0±0.25 |
18.92-24.14 |
2.1±0.3 |
25M |
200M |
40 |
40-45 |
1.0±0.3 |
21.62-27.59 |
2.1±0.3 |
25M |
200M |
45 |
45-50 |
1.0±0.3 |
24.32-31.03 |
2.1±0.3 |
25M |
150M |
50 |
50-56 |
1.0±0.3 |
27.03-34.48 |
2.1±0.3 |
25M |
150M |
60 |
60-66 |
1.0±0.3 |
32.43-41.38 |
2.1±0.3 |
25M |
150M |
70 |
65-80 |
1.0±0.4 |
37.84-48.27 |
2.1±0.3 |
25M |
100M |
80 |
75-90 |
1.0±0.4 |
43.24-55.17 |
2.2±0.35 |
25M |
100M |
90 |
85-100 |
1.3±0.3 |
48.65-62.07 |
2.5±0.3 |
1M-Bar |
100M |
100 |
95-110 |
1.3±0.35 |
54.05-68.97 |
2.5±0.35 |
1M-Bar |
100M |
110 |
105-120 |
1.3±0.35 |
59.46-75.86 |
2.6±0.35 |
1M-Bar |
100M |
120 |
115-130 |
1.4±0.35 |
64.86-82.76 |
2.6±0.4 |
1M-Bar |
75M |
130 |
125-140 |
1.4±0.4 |
70.27-89.66 |
2.6±0.4 |
1M-Bar |
75M |
140 |
130-150 |
1.5±0.4 |
75.68-96.55 |
2.6±0.4 |
1M-Bar |
75M |
150 |
140-160 |
1.5±0.4 |
81.08-103.45 |
2.7±0.4 |
1M-Bar |
75M |
160 |
150-170 |
1.5±0.4 |
85-95 |
2.8±0.4 |
1M-Bar |
75M |
170 |
160-180 |
1.5±0.4 |
85-95 |
3.0±0.4 |
1M-Bar |
75M |
180 |
170-190 |
1.5±0.4 |
85-95 |
3.2±0.4 |
1M-Bar |
75M |
190 |
180-200 |
1.5±0.5 |
95-105 |
3.2±0.5 |
1M-Bar |
75M |
200 |
190-210 |
1.5±0.5 |
95-110 |
3.2±0.5 |
1M-Bar |
75M |
210 |
200-220 |
1.5±0.5 |
95-110 |
3.2±0.5 |
1M-Bar |
75M |
220 |
210-230 |
1.5±0.5 |
95-110 |
3.2±0.5 |
1M-Bar |
75M |
Silicone heat shrink tube(flame retardant)2times | ||||||
Specifications |
Before contraction |
After contraction |
Packing |
MOQ |
||
Inner diameter |
Wall thickness |
Inner diameter |
Wall thickness |
|||
1.0 |
1.0-1.5 |
0.5±0.1 |
0.49-0.56 |
1.0±0.15 |
200M |
2000M |
1.5 |
1.5-2.0 |
0.5±0.1 |
0.73-0.83 |
1.0±0.15 |
200M |
2000M |
2.0 |
2.0-2.5 |
0.5±0.1 |
0.98-1.11 |
1.0±0.15 |
200M |
2000M |
2.5 |
2.5-3.0 |
0.5±0.1 |
1.22-1.39 |
1.0±0.15 |
200M |
2000M |
3.0 |
3.0-3.5 |
0.5±0.1 |
1.46-1.67 |
1.0±0.15 |
200M |
1200M |
3.5 |
3.5-4.2 |
0.5±0.1 |
1.71-1.94 |
1.0±0.15 |
200M |
1200M |
4.0 |
4.0-4.8 |
0.5±0.1 |
1.95-2.22 |
1.0±0.2 |
200M |
1200M |
4.5 |
4.5-5.3 |
0.5±0.1 |
2.2-2.5 |
1.0±0.2 |
200M |
1200M |
5.0 |
5.0-5.8 |
0.5±0.1 |
2.44-2.78 |
1.0±0.2 |
200M |
1200M |
5.5 |
5.5-6.5 |
0.5±0.1 |
2.68-3.06 |
1.0±0.2 |
200M |
1000M |
6.0 |
6.0-7.0 |
0.5±0.15 |
2.93-3.33 |
1.0±0.2 |
200M |
1000M |
6.5 |
6.5-7.5 |
0.5±0.15 |
3.17-3.61 |
1.0±0.2 |
200M |
1000M |
7.0 |
7.0-8.0 |
0.5±0.15 |
3.41-3.89 |
1.0±0.2 |
100M |
1000M |
7.5 |
7.5-8.5 |
0.5±0.15 |
3.66-4.17 |
1.0±0.2 |
100M |
1000M |
8.0 |
8.0-9.2 |
0.5±0.15 |
3.9-4.44 |
1.0±0.2 |
100M |
1000M |
8.5 |
8.5-9.7 |
0.5±0.15 |
4.15-4.72 |
1.0±0.2 |
100M |
1000M |
9.0 |
9.0-10.3 |
0.5±0.15 |
4.39-5 |
1.0±0.2 |
100M |
1000M |
10 |
10-11.5 |
0.5±0.15 |
4.88-5.56 |
1.0±0.2 |
100M |
500M |
11 |
11-12.5 |
0.5±0.15 |
5.37-6.11 |
1.0±0.2 |
100M |
500M |
10 |
10-12 |
1.0±0.2 |
4.88-5.56 |
2.0±0.3 |
50M |
500M |
11 |
11-13 |
1.0±0.2 |
5.37-6.11 |
2.0±0.3 |
50M |
500M |
12 |
12-14 |
1.0±0.2 |
5.85-6.67 |
2.0±0.3 |
50M |
500M |
13 |
13-15.5 |
1.0±0.2 |
6.34-7.22 |
2.0±0.3 |
50M |
500M |
14 |
14-16.5 |
1.0±0.2 |
6.83-7.78 |
2.0±0.3 |
50M |
500M |
15 |
15-17.5 |
1.0±0.2 |
7.32-8.33 |
2.0±0.3 |
50M |
500M |
16 |
16-18.8 |
1.0±0.2 |
7.8-8.89 |
2.0±0.3 |
50M |
500M |
17 |
17-19.8 |
1.0±0.2 |
8.29-9.44 |
2.0±0.3 |
50M |
300M |
18 |
18-20.8 |
1.0±0.2 |
8.78-10 |
2.0±0.3 |
50M |
300M |
19 |
19-21.8 |
1.0±0.2 |
9.27-10.56 |
2.0±0.3 |
50M |
300M |
20 |
20-22.8 |
1.0±0.25 |
9.76-11.11 |
2.0±0.3 |
50M |
300M |
21 |
21-24.5 |
1.0±0.25 |
10.24-11.67 |
2.0±0.3 |
25M |
300M |
22 |
22-25.5 |
1.0±0.25 |
10.73-12.22 |
2.0±0.3 |
25M |
300M |
25 |
25-28.5 |
1.0±0.25 |
12.2-13.89 |
2.0±0.3 |
25M |
200M |
30 |
30-34 |
1.0±0.25 |
14.63-16.67 |
2.0±0.3 |
25M |
200M |
35 |
35-40 |
1.0±0.25 |
17.07-19.44 |
2.0±0.3 |
25M |
200M |
40 |
40-45 |
1.0±0.3 |
19.51-22.22 |
2.0±0.3 |
25M |
200M |
45 |
45-50 |
1.0±0.3 |
21.95-25 |
2.0±0.3 |
25M |
150M |
50 |
50-56 |
1.0±0.3 |
24.39-27.78 |
2.3±0.3 |
25M |
150M |
60 |
60-66 |
1.0±0.3 |
29.27-33.33 |
2.3±0.3 |
25M |
150M |
70 |
65-80 |
1.0±0.4 |
34.15-38.89 |
2.3±0.5 |
25M |
100M |
80 |
75-90 |
1.1±0.4 |
39.02-44.44 |
2.3±0.5 |
25M |
100M |
90 |
85-100 |
1.3±0.3 |
43.9-50 |
2.6±0.6 |
1M-Bar |
100M |
100 |
95-110 |
1.3±0.5 |
48.78-55.56 |
2.6±0.6 |
1M-Bar |
100M |
110 |
105-120 |
1.3±0.5 |
53.66-61.11 |
2.7±0.6 |
1M-Bar |
100M |
120 |
115-130 |
1.3±0.6 |
58.54-66.67 |
2.8±0.7 |
1M-Bar |
75M |
130 |
125-140 |
1.3±0.6 |
63.41-72.22 |
2.8±0.7 |
1M-Bar |
75M |
140 |
130-150 |
1.6±0.6 |
68.29-77.78 |
3.0±0.8 |
1M-Bar |
75M |
150 |
140-160 |
1.6±0.6 |
73.17-83.33 |
3.2±0.8 |
1M-Bar |
75M |
160 |
150-170 |
1.6±0.6 |
85-94 |
3.2±0.8 |
1M-Bar |
75M |
170 |
160-180 |
1.6±0.6 |
85-94 |
3.2±0.8 |
1M-Bar |
75M |
180 |
170-190 |
1.6±0.6 |
85-94 |
3.3±0.8 |
1M-Bar |
75M |
190 |
180-200 |
1.8±1.0 |
95-103 |
3.3±1.0 |
1M-Bar |
75M |
200 |
190-210 |
1.8±1.0 |
95-108 |
3.5±1.0 |
1M-Bar |
75M |
210 |
200-220 |
1.8±1.0 |
95-108 |
3.6±1.2 |
1M-Bar |
75M |
220 |
210-230 |
1.8±1.0 |
95-108 |
3.8±1.2 |
1M-Bar |
75M |
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