Product Description
Expanded Virgin PTFE Soft Rope
Expanded PTFE Rope is made of 100% PTFE of puffed PTFE material cut or punched. Expanded PTFE material (eptfe) expands PTFE into a unique material with strong, tough and porous properties and is highly fibrotic.
It not only maintains the unique properties of PTFE itself - excellent chemical stability (not affected by general chemicals); extremely low coefficient of friction; wider operating temperature; non-aging and permanent durability.
FEATURES
1.easy to cut, asy to install can be mechanical stamping or manual cutting into any shape of the gasket, let your work become easier.
2. It's suitable for rough surface has unique compliance forming ability, it can produce good sealing effect on rough or damaged flange surface without increasing much pressure.
3.Extremely strong chemical corrosion resistance does not react with any chemical except for a very small number of chemicals such as fused alkali metals, tertiary nuclei, etc., and can be applied in all sealing occasions within the allowable range of temperature (315ºC), which will greatly reduce the variety and number of seals.
4.The unique high density fiber structure with good creep resistance and cold resistance, it has strong creep resistance. Its mechanical properties are very stable because it contains no adhesive and additives.
REGULAR SIZE DETAILS
Diameter: 1mm ~ 20mm
Length: As your request
Production Ability: 40 ~ 50 kg per day
APPLICATION IN FOLLOWING INDUSTRIES
Chemical, petrochemical, oil refining, chlor-alkali, acid making, phosphate fertilizer, pesticide, chemical fiber, dyeing, coking, gas, organic synthesis, non-ferrous smelting, iron and steel, atomic energy and high-purity products production (such as ion membrane electrolysis), viscous material transportation and operation, highly strict hygiene requirements of food, beverage and other processing and production departments.
MAIN PROPERTIES
Inspection Item |
Unit |
Standard |
Work Temperature |
ºC |
-240 ~270,Melt 315 |
Tensile strength |
Mpa |
≥10 F-152 |
Compressive Strength |
Mpa |
≤ 140 |
Compression(35mpa load) |
% |
65 F-36 |
Recovery(35mpa load) |
% |
11.61 F-36 |
Creep(100 degC ×22hr) |
% |
68.32 F-38 |
Nitrogen-seal(mi/hr-17.25mpa) |
Mpa |
0.16Internal Pressure 4 |
Nitrogen-seal(ml/hr-35mpa) |
Mpa |
0.0037 Internal Pressure 4 |
Density |
g/cm3 |
0.9 to 1.0 |
Product Application


Company Profile
Chunhuan Group (Zhenjiang Chunhuan Sealing Group Co., Ltd.),established in 1985, is a leading manufacturer of fluoroplastic products, chemical semiconductor linings, and new energy sealing gaskets. The company primarily focuses on the research, development, and production of fluoroplastic series sealing products (for hydrogen energy and nuclear power applications)and chemical semiconductor linings.With subsidiaries in South Korea and Shanghai, the group has also established a joint venture with South Korea's Houcheng Group for semiconductor lining equipment. Main production:PTFE products,metal seals series,steel lining anti-corrosion series, engineering plastics series , rubber products series , it is the leading enterprise in the national fluoroplastics industry. The company supplies more than 300 varieties of PTFE composite modified materials,ranging from standard composite modified materials (bronze,glass fiber,carbon,graphite,etc.)to customized solutions to meet different production needs of customers.The company provides flexible quantity and fast delivery service.The engineers have 35 years working experience in the field of PTFE,serving customers in more than 30 countries.
Our Advantages

Certifications

Packaging & Shipping

FAQ
1.Q: How to distinguish pure PTFE from filled PTFE sheets?
A: Pure PTFE is white without additives (labeled "Virgin PTFE"); filled types specify additives and may appear gray/off-white.
2. Q: Are the products certified with international standards ?
A: Pure PTFE complies with FDA . Filled types depend on formulations.
3. Q: Can I request samples?
A: Free 20×20cm samples are provided (shipping cost paid by buyer).
4. Q: What is the lead time for custom sizes/thickness?
A: Standard sizes ship in 7 days; custom orders take 15-30 days (based on complexity).
5. Q: How to verify chemical resistance data?
A: Third-party test reports.
6. Q: What is the packaging ?
A: With wooden crates, suitable for sea/air freight.
7. Q: Will harmful substances be released ?
A: Pure PTFE is stable up to 250ºC; filled types require additive verification.
8. Q: Can you deburr sheet edges or provide precision machining?
A: Standard sheets are rough-cut; CNC finishing (±0.1mm tolerance) is available at additional cost.
9. Q: What if the product fails performance tests after delivery?
A: Disputes within 15 days require third-party test reports. Confirmed issues trigger free replacement or refund.