Contact Us
- No.278, Qingxian Road, Linglong Street, Linan, Hangzhou, Zhejiang, China.
- fiona@foreverseal.com
- +8613732295276
Ptfe Film For Cable Factory
PTFE(Polytetrafluorethylene)
Expanded, natural or white
Thickness: 0.051mm
Width: 4mm - 200mm
Standard density: 0.7g/cm3
Description
Products Description
Our PTFE film is specially designed for high-temperature, high-frequency, and demanding cable applications, ensuring stable performance and reliable long-term insulation. It is engineered to support stable cable manufacturing, helping cable factories improve product performance, reduce defects, and ensure consistent mass production.
Benefits :
Stable batch-to-batch quality for repeat orders
Predictable performance reduces production risk
Compatible with long-term supply contracts
Supports both standard and customized cable designs
Key Performance :
1. High Temperature Resistance
PTFE film maintains stable performance from -190°C to +260°C, making it ideal for high-temperature extrusion, sintering, and long-term cable operation.
2. Excellent Electrical Insulation
With a low dielectric constant and low dielectric loss, it ensures reliable insulation performance for high-frequency and high-voltage cables.
3. Stable Thickness & Density
Controlled manufacturing process ensures uniform thickness and density, enabling smooth and consistent wrapping during high-speed cable production.
4. Low Shrinkage & Low Cold Flow
Our high-density PTFE film minimizes shrinkage and cold flow, improving dimensional stability and reducing insulation deformation over time.
5. Easy Wrapping & Processing
It is flexible, smooth, and suitable for continuous wrapping, slitting, and secondary processing, supporting efficient cable production lines.
Optimized for Cable Manufacturing Lines
Suitable for high-speed wrapping
Clean surface, low defect rate
Compatible with slitting, laminating, and secondary processing
Helps reduce rework and material waste
OEM & Supply Capability
We support cable manufacturers with:
Customized thickness, width, and roll length
Stable long-term supply for mass production
OEM and private labeling service
Technical support for cable insulation applications
Why Work With Us?
Experienced manufacturer
Consistent quality and batch stability
Competitive pricing for long-term cooperation
Professional support for cable industry customers
About us:
Founded in 2009, Foreverseal is one of the world's largest manufacturers of high quality PTFE tape. More than 10 years development, foreverseal has successfully upgraded from the PTFE tape to the manufacturing of high-end ePTFE film industry.
In 2019, we have imported of the world-class precision calender and stretching equipment; And established PTFE film test laboratory; The expert who have engaged in the Fluorine industry more than 30 years led the whole technical team, providing us a strong technical for PTFE film and guide us to the new area of PTFE products in the future!
PTFE is a special material, lets work together to make it in a wider range of uses to fulfill the customers' need and even the requires of the whole social development!
OUR STRENGTHS
Constant temperature and 100,000 class dustless workshop
Advanced high - precision machines
Lead by more than 30 years experts in Fluorine industry
A fully equipped test laboratory
- Technical Data
|
Thickness |
0.0020" |
|
(0.051mm) |
|
|
Tolerance |
±0.00030" |
|
±0.0076mm |
|
|
Width |
4 - 200mm |
|
Density |
0.7g/cm3 |
|
Tensile Strength (minimum) |
12MPa |
| Elongation (minimum) |
50% |
|
Joint Free Lengths |
> 200m |



Certifications

ISO9001

UL

WRAS

DVGW

ROHS

ACS
Application




FAQ
Customer: What's your payment way?
Foreverseal: Normally 30% TT prepayment, 70% TT against BL copy.
Customer: Is your ptfe film sintered?
Foreverseal: Yes, we have both sintered and unsintered ptfe film.
Customer: When did your company establish?
Foreverseal: Our company was established in June, 2009.
Customer: How long will it take to make sample?
Foreverseal: It takes around 7 days to arrange samples
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