3: 1 Black Environmental Protection with Glue Dual Wall Heat Shrink Tubing

Product Description

Product Description

Description

The double-walled tube consists of a soft flame retardant polyolefin and a hot melt double layer, outer polyolefin. Insulation, flame retardant, excellent physical and chemical electrical properties, the inner layer of hot melt adhesive can buffer mechanical strain and strong sealing. The main function is
insulation, sealing, waterproof, anti-corrosion, anti-leakage, etc., widely used in all kinds of wire harness, wire and cable and metal pipe rod sealing insulation, waterproof and anti-corrosion fields.

Features

* Heat shrink ratio: 2:1,3:1, 4:1
* Soft, flame retardant outer layer, environmental protection, UV resistance
* Shrinking temperature: 70℃ ~ 125℃
* Operating temperature: -45℃ ~ 125℃
* Environmental protection standard: RoHS
* Standard color: black, other colors can be customized

Item	Typical value	Test method
Tensile Strength	≥10.4MPa	ASTM D 2671
Elongation at Break	≥200%	ASTM D 2671
Tensile strength after thermal aging	≥7.3MPa	158℃×168h
Elongation at break after thermal aging	≥100%	158℃×168h
Axial rate of change	-8~+8%	ASTM D 2671
Flame retardancy	pass	ASTM D 2671 B
Breakdown strength	≥15kV/mm	IEC 60243
Volume resistivity	≥1014Ω.cm	IEC 60093
Hot melt adhesive layer technical specifications

Item	Typical value	Test method
Softening point	95±5℃	ASTM E 28
Water absorption	<0.2%	ASTM D 570
Peel strength (adhesive to PE)	≥120N/25mm	ASTM D 1000
Peel strength (adhesive to Al)	≥80N/25mm	ASTM D 1000

2:1 DIMENSIONS
Type	Before shrink D(mm)	After shrink (mm)		Standard packing (m/roll)
		Inside diameter D	Total wall thickness  W
Φ1.6	1.6	≤0.80	0.60±0.3	200
Φ2.4	2.4	≤1.20	0.70±0.3	200
Φ3.2	3.2	≤1.60	0.70±0.3	200
Φ4.8	4.8	≤2.40	0.80±0.3	100
Φ6.4	6.4	≤3.20	0.80±0.3	100
Φ7.9	7.9	≤3.90	0.90±0.3	100
Φ9.5	9.5	≤4.80	0.90±0.3	50
Φ12.7	12.7	≤6.40	0.95±0.4	1.22
Φ15.9	15.9	≤7.90	0.95±0.4	1.22
Φ19.1	19.1	≤9.50	1.00±0.4	1.22
Φ25.4	25.4	≤12.7	1.10±0.4	1.22
Φ31.8	31.8	≤15.0	1.15±0.4	1.22
3:1 DIMENSIONS
Type	Before shrink D(mm)	After shrink (mm)		Standard packing (m/roll)
		Inside diameter D	Total wall thickness  W
Φ2.4	≥2.4	≤0.80	0.80±0.30	200
Φ3.2	≥3.2	≤1.00	0.90±0.30	200
Φ4.8	≥4.8	≤1.60	1.05±0.30	100
Φ6.4	≥6.4	≤2.20	1.25±0.30	100
Φ7.9	≥7.9	≤2.70	35±0.30	100
Φ9.5	≥9.5	≤3.20	1.45±0.30	50
Φ12.7	≥12.7	≤4.20	1.65±0.30	1.22
Φ15.0	≥15.0	≤5.20	1.80±0.30	1.22
Φ19.1	≥19.1	≤6.30	1.95±0.30	1.22
Φ25.4	≥25.4	≤8.50	2.00±0.40	1.22
Φ30.0	≥30.0	≤10.2	2.15±0.40	1.22
Φ39.0	≥39.0	≤13.5	2.45±0.40	1.22
Φ50.0	≥50.0	≤17.0	2.75±0.40	1.22
Φ64.0	≥64.0	≤21.0	3.05±0.40	1.22
Φ75.0	≥75.0	≤25.0	3.05±0.40	1.22
Φ90.0	≥90.0	≤30.0	3.05±0.50	1.22
Φ100.0	≥100	≤34.0	3.10±0.50	1.22
Φ125.0	≥125	≤42.0	3.10±0.50	1.22
4:1 DIMENSIONS
Type	Before shrink D(mm)	After shrink (mm)		Standard packing (m/roll)
		Inside diameter D	Total wall thickness  W
Φ4.0	≥4.0	≤1.0	1.05±0.30	200
Φ6.0	≥6.0	≤1.5	1.15±0.30	100
Φ8.0	≥8.0	≤2.0	1.15±0.30	100
Φ12.0	≥12.0	≤3.0	1.75±0.30	1.22
Φ16.0	≥16.0	≤4.0	2.00±0.30	1.22
Φ20.0	≥20.0	≤5.0	2.30±0.40	1.22
Φ24.0	≥24.0	≤6.0	2.60±0.40	1.22
Φ32.0	≥32.0	≤8.0	3.00±0.50	1.22
Φ52.0	≥52.0	≤13.0	3.35±0.50	1.22
Note: Special size and packaging can be customized upon request.

Company Profile

Suzhou Volsun Electronics Technology Co., Ltd.

Volsun has been focusing on the R&D and production in solutions of telecommunication, electrical power and new energy auto for over 18 years. As a pioneer in insulation, sealing & protection, we've passed a series of quality system certification, such as IATF16949, ISO9001, ISO14001, ISO45001, etc.It has cooperated with many Fortune 500 companies. It has
experience in and has participated in national key projects. It has factories of more than 25000 square meters in Suzhou and Yangzhou. Popular sizes are in stock, and free samples are supported to provide customers with one-stop service.
Suzhou Volsun Electronic Technology Co., Ltd. is a well-known manufacturer of protective products for power communication equipment in Asia. Its main products are cold shrink tubes, fiberglass sleeve, thermal potting compound, thermal pads, heat shrink tube .overhead line cover, self fusing tape, shaft grounding ring, PET braided sleeve, identification products, ect.

Six reasons to choose VOLSUN

01 Absolutely no recycled materials are used in production

02 Professional Team

>We have our own cold shrink tubing laboratory, and all solutions are formulated based on experimental data Process.
>All products such as Volsun cold shrink tubing are absolutely not produced using recycled materials.
>The number of meters per roll of heat shrink tubing is only more or less, and the average is about 1 meter.

>As a high-tech enterprise of cold shrink tube, Volsun offers unconditional return and exchange within 15 days.
>10 years of product R&D experience, 20% of the staff are R&D personnel. Our R&D has filled the gap in the technology of national protective products and has won the support of the government;
>Some sizes of cold shrink tubes and other products are in stock and can be shipped immediately after placing an order.

03 Internationally advanced production equipment

04 Perfect quality management system

This street light features high brightness, energy saving, environmental protection, and easy installation. It has a waterproof rating of IP67 and has passed CE certification. It is suitable for schools, parks, roadsides, factories, squares, etc. It has a warranty period of 3 years. Moreover, we can provide various styles to meet your needs.

This street light features high brightness, energy saving, environmental protection, and easy installation. It has a waterproof rating of IP67 and has passed CE certification. It is suitable for schools, parks, roadsides, factories, squares, etc. It has a warranty period of 3 years. Moreover, we can provide various styles to meet your needs.

05 Industrial insulation technology

06 Sales network covers 86 countries solutions

This street light features high brightness, energy saving, environmental protection, and easy installation. It has a waterproof rating of IP67 and has passed CE certification. It is suitable for schools, parks, roadsides, factories, squares, etc. It has a warranty period of 3 years. Moreover, we can provide various styles to meet your needs.

This street light features high brightness, energy saving, environmental protection, and easy installation. It has a waterproof rating of IP67 and has passed CE certification. It is suitable for schools, parks, roadsides, factories, squares, etc. It has a warranty period of 3 years. Moreover, we can provide various styles to meet your needs.

Six "HAVE"

* We have 20000+ square meters of manufacturing space 
* We have professional R&D team and service team to provide you with efficient project solutions, quick response, etc.
* We have a number of quality system certificates and product testing certificates, such as: UL, ISO, IATF, REACH, ROHS. We meet international quality standards.
* We have participated in large-scale exhibitions in various places,  have a certain brand awareness, and have in-depth cooperation with more than 6000+ customers around the world, contributing to the development of the industry.
* We have ample storage space, some product modles are in stock all year round, and we support short-term large-volume orders with fast shipment and timely delivery.
* We have a variety of shipping methods, including Sea freight, air freight, express, ect. Customized packaging can be provided accroding to customer requirememts.

FAQ

Q 1. How long is the payment term?

A: We accept T/T 50% deposit and 50% balance against B/L or L/C copy at sight, also accept Western Union, VISA and Paypal.
 
Q 2. What is the normal lead time for product orders?
A: The average lead time for prototype/first piece is 7~10 days, if tooling is involved, the lead time for production tooling is 10 days, and the average production time after sample approval is 2-3 weeks.
 
Q 3. What is your standard packaging?
A: All goods will be packed in cartons and loaded on pallets. Special packing methods are acceptable when needed.
 
Q 4. Can you tell us the monthly production capacity of your products?
A: It depends on the model, we produce more than 1500 tons of rubber materials per month.
 
Q 5. What kind of certificates do you have?
A1: We have ISO9001:2015 ,IATF16949:2016, ISO14001:2015 ,ISO45001:2018 certified 
A2: We have various rubber compounds approved by UL, ROHS and REACH.
 
Q 6: How to check the quality of bulk order?
A1: We provide pre-production samples to all customers before mass production if needed.
A3: We accept third-party inspection, such as SGS, TUV, INTERTEK, BV, etc.
 
Q 7: Can you provide customized service?
A: Yes, we accept customization and can produce products in different sizes, packaging, colors according to requirements.