C108 Insulation and Stress Control Composite Heat Shrink Tube
| Property |
Test Method |
Requirement |
| Outer layer (insulation, red) |
| Tensile strength |
ASTM D2671 |
≥8 MPa |
| Ultimate elongation |
ASTM D2671 |
≥200% |
Heat aging (136°C/168h)
Tensile strength
Ultimate elongation |
ASTM D2671 |
≥8 MPa
≥100% |
| Water absorption (23°C/24h) |
ASTM D2671 |
≤0.5% |
| Low-temperature flexibility (-40°C/4h) |
ASTM D2671 |
No cracking |
| Heat shock (200°C/4h) |
ASTM D2671 |
No dripping or flowing |
| Dielectric strength |
ASTM D2671 |
≥15 kV/mm |
| Volume resistivity |
ASTM D2671 |
≥1.0×1012Ω·cm |
| Tracking and erosion resistance |
ASTM D2303 |
After 1hr at 2.5kV, and 1hr at 2.75kV,
and 1hr at 3.0kV, and 20mins at 3.25kV.
No burn penetration, no sustained burning |
| Flammability |
ASTM 2863 |
OI ≥25 |
| Color fastness to light |
IEC 60684-3 |
No visible change |
| Inner layer (stress control and sealant layer, green) |
| Dielectric constant |
ASTM D150 |
≥3. 1 |
| Volume resistivity |
ASTM D2671 |
≥1.0×1011Ω·cm |
Frequently Asked Q & A
Q1. You are a manufacturer or trading company?
A: We are a leading manufacturer of shrinkable materials,with best price,high quality and short lead time.
Q2. Can you accept sample orders?
A:Yes, we can accept sample orders and we can also provide free samples for your test if necessary.
Q3. What is your MOQ?
A:Normally, for standard thin wall heat shrink, MOQ is 300m. For standard medium/heavy wall tube MOQ is 500m per size.
Q4. What are your payment terms?
A: As usual, the trade term is FOB Dalian. For order amount less than 10,000 USD, it should be 100% T/T in advance. For order amount over 10,000 USD, 30% deposit and 70% balance against copy of BL is acceptable.
Q5. How can I get my order?
A: Per your requirements, we will arrange the cargo delivered by express (e.g. TNT, DHL, FedEx ) ,by land,by air or by sea. After that, we will give you the tracking number or other relative files for your reference.
Q6. How about your quality?
A: We are a trust worthy supplier for GE,Siemens for more than 10 years. Most of the products got the CE,UL,DNV,CCS and Rohs approval. Let's start with a small trial order or free samples before the formal order, then you will get a clear image about the product quality and the relevant cost for transportation.
Q7. How is the delivery time?
A: Usually within 3 weeks.
Q8. Could you offer certificate of origin (e.g. Form-A,Form-E,Form-F,Form-R)?
A: It is totally not a problem. To help you enjoy the tariff concession,we can prepare the relevant certificate of origin.
Audited Supplier 
){kind=link}