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Compression Molded Sintered PTFE Disc Chemical Flange Seal PTFE Round Sheet
US$7.00-10.00
10 kg
Sample price:US$1.00/piece.Request sample
Product profile
Color
WhiteAfter-sales Service
Free Replacement or RefundWarranty
24 MonthsModel NO.
PTFE Round Molded SheetMaterial
PTFEKind
White Plastic SheetWater Absorption
＜0.01%Contraction Percentage
＜0.4%Tensile Strength
30~40MPaDensity
2.1-2.3G/Cm3Elongation
340%Processing Service
CuttingPlastic Molding Type
MouldSurface Finish
GlossySample
Sample AvailableCertification
MSDS\RoHS\Reach\FDATransport Package
Plastic and Wooden BoxesSpecification
as your requirementTrademark
chunhuanOrigin
ChinaHS Code
39209910Production Capacity
60tons/MonthKey features
Superior Chemical Resistance: Resists almost all strong acids, alkalis, and organic solvents.
FDA and RoHS Certified: Pure PTFE discs comply with FDA, RoHS, REACH, and MSDS standards.
Customizable Colors and Fillers: White standard; other colors and fillers like glass fiber or carbon available.
Low Water Absorption: Water absorption rate is less than 0.01% ensuring stability.
High Tensile Strength: Tensile strength ranges from 30 to 40 MPa for durability.
Free Samples Available: Free samples provided with delivery within 2-5 days.
Flexible Customization: Irregular sizes and specific material requirements accepted.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 20 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤3.28h
AI-Powered supplier vetting
SummaryZhenjiang Chunhuan Sealing Materials Co., Ltd. (Group) is identified as a manufacturer and trading company with its own export license, 186 employees, and more than 30 years of operating history. It produces PTFE sheets, rods, gaskets, and related plastic products, and reports ISO9001, MSDS, RoHS, REACH, and ASTM 3308 credentials. The supplier supports extensive customization and has documented inspection, corrective-action, complaint-handling, and traceability procedures. It reports inventory capability, one-month average lead times in both peak and off-season, and 20 years of export experience. However, it does not provide 3D software design services, has no available SDK, overseas warehouse, overseas showroom, overseas agent or branch, and has not participated in offline trade shows. No valid manufacturing-capacity contract with related subcontractors is reported. Financial information is referenced for 2020–2022, but the provided slices do not disclose sufficient financial results to assess...
Supplier typeThe supplier is explicitly described as both a manufacturer and trading company with its own export license. Its stated activities include manufacturing plastic products and processing machine elements and spare parts, supporting classification as a manufacturing-oriented supplier.
CertificationsThe supplier reports ISO9001, MSDS, RoHS, REACH, and ASTM 3308 credentials, while the sustainability-related certification is specified as ISO9001:2015. These stated certifications provide explicit evidence of certification holdings, although the slices do not verify their scope or current validity dates.
After-Sales capabilityThe supplier has clear procedures and followed records for handling customer complaints, as well as corrective and preventive actions. This directly supports an established after-sales issue-management process.
Production capacityThe supplier identifies itself as a manufacturer with 186 employees and established plastic-product production, reports in-stock capability, and states one-month average lead times in both peak and off-season. However, it also reports no valid manufacturing-capacity contract with related subcontractors, so the evidence demonstrates internal production capability but leaves outsourced-capacity controls as a limitation.
Customization capabilityThe supplier explicitly offers customization from samples, full customization, customization from designs, minor customization, and flexible customization. This is direct evidence of a broad customization service range.
Product Q&A
Q:Is this PTFE disc made of pure PTFE or contains fillers?
A:
This product is a standard pure PTFE compression molded and sintered disc without any fillers, maintaining PTFE's excellent chemical inertness and high purity. Customized formulations with fillers (e.g., glass fiber, carbon fiber) are available upon request, but note that filled grades are not suitable for food-contact applications.
Q:What are the advantages of compression molding and sintering over ordinary molding or skived sheets?
A:
Compression molding combined with high-temperature sintering produces a denser structure with extremely low porosity, significantly reducing media permeation and improving sealing reliability. This process also minimizes residual stress and ensures good flatness, reducing warpage.
Q:Does this product meet FDA, ROHS, and REACH certification requirements?
A:
Pure PTFE discs comply with FDA food-contact requirements (21 CFR 177.1550), ROHS, and REACH, and MSDS documentation is provided with each shipment. Filled versions are not FDA-compliant - please confirm before ordering.
Q:What should I pay attention to during installation? Is special surface treatment needed?
A:
Ensure the flange faces are clean, flat, and free of scratches before installation. The PTFE disc requires no sealant - place it between flanges and tighten bolts evenly to standard torque. We recommend using stop devices to prevent over-compression and creep relaxation.
Q:How does this disc differ from expanded PTFE (ePTFE) gaskets?
A:
Compression molded sintered PTFE has higher density and hardness, with better creep resistance than ePTFE, making it more suitable for high pressure or significant temperature fluctuations. ePTFE is softer and more conformable, ideal for low pressure or irregular flanges. Both have their merits - choose based on specific conditions.
Send Inquiry
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Zhenjiang Chunhuan Sealing Materials Co., Ltd. (Group)
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