Glass Filled PTFE — Material Specifications, Engineering Data & OEM Supply
Glass Filled PTFE is manufactured in Gujarat by HEMSUN ENGG. INDUSTRIES, providing tight dimensional accuracy and long service life in glass filled components. Features premium PTFE fluoropolymer compounding, void-free sintering, and precision CMM inspection.
Where Glass Filled PTFE is used
Supplied as bushes, thrust washers, valve seats and slide plates carrying sustained load, typically at 15% or 25% fill.
Glass fibre filling raises compressive strength and cuts creep under sustained load, at the cost of some chemical breadth and higher mating-face wear.
Key properties
In-house Glass Filled PTFE production
moulding and CNC under one roof
Drawing, CAD (STEP/IGES/DXF), or sample-based reverse engineering
PTFE grade options matched to chemical and thermal duty
Dimensional inspection with reports on request
IEC-registered exporter
worldwide packing and docs
Flexible MOQ
prototypes, pilot lots, recurring OEM supply
Specifications
| Property | Value |
|---|---|
| Component Type & Grade | Glass Filled PTFE (Specification Code HES-957) |
| Base Raw Material | PTFE fluoropolymer (Virgin FDA 21 CFR 177.1550 / Custom Filled) |
| Continuous Service Temp. | -200°C to +260°C (-328°F to +500°F) |
| Tensile Strength at Break | 20 to 35 MPa (Virgin) / 14 to 25 MPa (Filled) |
| Elongation at Break | 250% to 450% (ASTM D4894) |
| Specific Gravity / Density | 2.14 to 2.18 g/cm³ (ASTM D792) |
| Dielectric Strength | 50 to 80 kV/mm (0.1 mm film) |
| Surface Roughness Finish | Diamond Polished Ra ≤ 0.20 µm to Ra ≤ 0.40 µm |
| Dimensional Tolerance | ISO Grade 1 to Grade 3 / Drawing Nominals (±0.02 mm) |
| Manufacturing & Origin | Moulded, Sintered & CNC Machined in Dahegam, Gandhinagar, Gujarat, India |
Manufacturing process
At our Gujarat works, Glass Filled PTFE is fabricated through specialized powder compression moulding and thermal sintering cycles. Virgin or filled PTFE fluoropolymer powder is volumetrically charged into hardened tool steel dies, compacted under 300–420 kg/cm² force, and sintered for one hour per 25 mm of wall thickness to guarantee homogeneous matrix density.
Material selection notes
Material properties for Glass Filled PTFE (PTFE fluoropolymer): Total chemical inertness across pH 0–14, continuous thermal resistance from -200°C to +260°C (-328°F to +500°F), and an ultra-low dynamic coefficient of friction (0.05 to 0.10). For heavy-duty mechanical service, we offer filled formulations with glass fiber (15–25%), carbon graphite (15–33%), or bronze powder (40–60%) to resist compressive creep and abrasive wear.
How to specify your order
Selecting Glass Filled PTFE for OEM manufacturing: Provide part 2D drawings, resin filler preference, and target monthly consumption. We calculate tooling requirements, unit pricing, and dispatch timelines for domestic and export delivery.
Quality checks and inspection
Quality verification on Glass Filled PTFE covers 100% critical dimension checks, dye-penetrant porosity screening, surface texture measurements, and batch traceability documentation provided with each export dispatch.
Ordering and export documentation
Domestic Glass Filled PTFE orders ship with GST invoice and e-way bill where applicable. Export orders include commercial invoice, packing list, and certificate of origin from our IEC-registered works. Material certificates and dimensional reports attached for qualified pharmaceutical and OEM shipments Contact info@hemsun.com or sales@hemsun.com with your PTFE components specification.
Export packing and lead time
HEMSUN ENGG. INDUSTRIES manufactures Glass Filled PTFE in Gujarat, India, and exports directly to OEMs and industrial distributors in North America, Europe, the Middle East, Southeast Asia, and Africa. Shipments include complete mill test reports (MTR), certificates of compliance, IEC shipping bills, and export-grade protective barrier packaging inside heavy-duty cartons or seaworthy wooden boxes.
Storage and handling
Storage and operating notes for Glass Filled PTFE: Keep parts in sealed packaging at ambient room temperature. During equipment overhaul, inspect sealing lips for particulate embedding and replace components showing mechanical wear.
Compliance & Standards
HEMSUN is a DGFT IEC registered exporter (Government of India). Filler content and sintered density are verified per ASTM D792 on each batch, with tensile and elongation checked per ASTM D4894. A mill test certificate stating the lot, filler content and measured values ships with the order. Export paperwork — commercial invoice, packing list and certificate of origin — accompanies international despatch.
Frequently Asked Questions
What Glass Filled PTFE options does HEMSUN manufacture?
Glass Filled PTFE is manufactured in Gujarat by HEMSUN ENGG. INDUSTRIES, providing tight dimensional accuracy and long service life in glass filled components. Features premium PTFE fluoropolymer compounding, void-free…
Can you supply Glass Filled PTFE for OEM and export orders?
Yes. We support prototype lots, recurring OEM programmes, and export packing with material certificates and dimensional inspection reports on request. Typical RFQ response is within one business day when drawings are complete.
How do I request a quote for Glass Filled PTFE?
Send material grade, dimensions or drawing, quantity, application media, and operating temperature/pressure via https://hemsun.com/contact. Our engineering team confirms manufacturability, lead time, and pricing.



