|
HS Code |
450986 |
| Material | Polytetrafluoroethylene (PTFE) |
| Color | White |
| Density | 2.10-2.30 g/cm³ |
| Operating Temperature Range | -180°C to +260°C |
| Water Absorption | Less than 0.01% |
| Tensile Strength | 21-35 MPa |
| Elongation At Break | 150-400% |
| Coefficient Of Friction | 0.05-0.10 |
| Dielectric Strength | 60 kV/mm |
| Thermal Conductivity | 0.25 W/m·K |
As an accredited PTFE Sheet/PTFE Rod factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | PTFE Sheet/PTFE Rod is securely packed in 10-piece bundles, wrapped in protective plastic film, and placed inside sturdy cardboard boxes. |
| Container Loading (20′ FCL) | 20′ FCL: Loads approximately 16-18 tons of PTFE Sheet/PTFE Rod, securely packaged to prevent damage and maximize container space. |
| Shipping | PTFE Sheet/PTFE Rod products are securely packed in moisture-resistant, sturdy packaging to ensure safe transit. Standard shipping options include air, sea, or express courier, based on customer preferences. Timely dispatch is guaranteed, with tracking information provided. Customized packaging is available upon request to accommodate specific dimensions or bulk orders. |
| Storage | PTFE Sheet/PTFE Rod should be stored in a clean, dry, and well-ventilated area, away from direct sunlight and high temperatures. Avoid exposure to moisture, acids, and alkalis. Keep the material on flat surfaces to prevent warping or deformation. Store away from sources of contamination or mechanical damage to maintain its chemical and physical integrity. |
| Shelf Life | PTFE Sheet/PTFE Rod has an indefinite shelf life when stored properly, as it is highly resistant to degradation and chemical attack. |
Competitive PTFE Sheet/PTFE Rod prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615365186327 or mail to sales3@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: sales3@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
After decades supplying PTFE sheet and rod to machining, chemical processing, and food industries, we’ve come to value one thing above all: genuine reliability. Our production lines use pure, high-performance polytetrafluoroethylene resin sourced from partners with decades in fluoropolymer chemistry. Keeping our own equipment calibrated and our standards strict, we cut, mold, and finish every sheet and rod at our manufacturing site by skilled operators.
We believe PTFE's strength isn't a sales point—it's the reasons why customers keep returning for every project where other plastics crack, seize, or warp. This is material that shrugs off aggressive chemicals, stretching from harsh acid tanks to delicate electronics, surgical assemblies, and food-contact environments where hygiene and non-stick surfaces matter.
Our PTFE sheet isn't a mere slab of plastic. It's formed under pressure and temperature controls that prevent voids or weak points, and we verify density batch by batch. Sheets leave our presses smooth on both sides, available in thickness from thin 0.5 mm up to over 50 mm, and our shop can deliver sizes from small rectangles for gaskets right up to wide panels supporting whole workbenches. Every cut surface goes through visual and tactile checks—small defects can lead to leaks or malfunctions in the field, and we've learned no customer wants to gamble with quality.
PTFE rod, offered in diameters from 6 mm up to 200 mm or more, answers the call for low-friction pivots, chemically resistant pins, and even insulators for sensitive measurement equipment. We extrude smaller diameters for machine shops and mold larger blocks for heavy-duty applications. Customers often request custom lengths, and every rod is straightened by hand inspection. In this, experience matters—if a rod flexes or bows, precision work later on suffers, so our people reject anything off-standard.
PTFE’s biggest strengths—chemical stability, broad temperature range, and low surface energy—make it hard to work with for others. For years, we’ve improved our press molds and extrusion dies, chasing smoother walls and fewer inclusions. We don't just talk about hydrophobicity and anti-stick; we use raindrop tests and hot, oily metals to verify them. We've learned from suppliers who cut corners, supplying milky or streaked PTFE stock. Small flaws cause years of trouble, from batch contamination in reactors to electrical faults in high-voltage assemblies.
Our operators know that PTFE’s high melt viscosity makes thorough, slow heating critical. Rushing production causes bubbles and weak zones. For rods, slow extrusion paired with temperature gradients reduces internal stresses, helping machinists downstream. For each batch, we slice cross-sections and compare them to past experience—color, weight, and finish aren't just cosmetic; they reveal crystalline structure and future performance. Whenever we spot a new issue, we review previous manufacturing logs, checking for machine wear or material blend changes, because most downstream problems can be traced back to one skipped calibration.
Most buyers come to us after trying cheaper plastics like UHMW, acetal, or PVC and running into issues. PTFE's surface lets little stick for long, whether you’re mixing paint, blending pharmaceuticals, or keeping dough moving off tables. We’ve seen PTFE gaskets outlast elastomers in dozens of aggressive solvents without swelling, shrinking, or getting brittle. Temperature swings don't bother PTFE—its coefficient of friction stays low across freezer and oven extremes—and it won’t absorb water the way nylon does.
Some customers ask about price. It’s true, PTFE costs more per kilo than common engineering plastics. That expense pays off with fewer shutdowns for equipment cleaning, gaskets that hold tight after years, and bearings that don’t seize. We restrict fillers in our standard range unless specifically requested—our experience tells us that homopolymer PTFE offers the best corrosion resistance and insulation, while glass fiber or carbon additives improve wear for dynamic seals. Not every job needs enhanced performance, though; we always share candid advice about the right material for the environment, even if it means a smaller sale.
Over the years, we’ve sent PTFE sheets and rods to food production, electronics fabrication, chemical pilot plants, and even university laboratories. Machine shops count on its machinability for tight-tolerance parts and low-friction slides. In maintenance shops, PTFE pads help isolate vibration under pumps and compressors, outlasting hard rubber or felt. The beverage and pharmaceutical sectors rely on our PTFE for seals and conveyor parts because it doesn’t contaminate or support microbial growth.
We've crafted liners for acid tanks and fittings for ultra-pure water delivery. PTFE’s inertness protects sensors measuring concentrations at the part-per-billion level. In the HVAC field, customers use PTFE gaskets to ensure leak-free ducting under extreme heat or cold. Electricians appreciate the dielectric properties, winding it into spacers and supports for high-frequency lines, confident that surface leakage won’t short-circuit sensitive signals. We've worked with OEMs developing new membranes and filters, cutting PTFE film to micron accuracy for laboratory analysis. Each market draws something unique from PTFE’s blend of chemical resistance, thermal stability, and friction reduction, and we’ve built our operation to support even the most specialized demands.
For anyone handling caustics, solvents, or temperature swings, cheap gaskets fail first. We’ve supplied PTFE sheet punched for flange gaskets, cut for sight glass covers, and even formed into lining for food conveyor chutes. In mining and refining, PTFE liners last longer in tanks where acids or oxidizers eat lesser plastics. In our experience, nothing stands up to hydrofluoric acid or chlorine dioxide the way PTFE does.
Sheet thickness drives choice. We've seen factories run thick 20 mm PTFE sheet for heavy tank bases, trusting that even with regular thermal cycling the material won’t crack. For microfluidic and analytics equipment, we cut sheets under 1 mm, sending them through double cleaning to remove dust and residues. Maintaining flatness and avoiding warping during post-cooling sets us apart—many problems traced back to uneven cooling, which distorts parts during later assembly.
Our commitment means every sheet gets a final survey for pinholes, haze, and sidewall chips. PTFE is known for low strength among plastics, so handling and shipping need care. We use reinforced packaging and staggered stacking to prevent compression marks during long hauls. Some importers try to overlook these details; over decades, we know a single flaw discovered during installation wastes both material and hours.
The process starts with careful blending of resin before extrusion. Production staff observe extrusion rates and rod cooling to watch for internal voids. We turn, cut, and polish rods so that end users can machine fine threads or intricate grooves without surprise cracks. Sometimes customers send us pictures of finished bearing cages or valve seats, sharing how precise tolerances and minimal deflection save them weeks of downtime.
Projects pushing PTFE rod to its limits include rolling elements in food-wash systems, where rods contact water, oils, and caustics daily. Our rods hold up where PA6, POM, or even bronze bushings seize or corrode. Some order oversized rods for custom splitting, making sleeves for unique assemblies. Smaller diameter rods support electronics manufacturers assembling capacitors and sensor insulators.
PTFE’s tendency toward cold flow requires experience; using the right rod size and compressibility ratings allows our partners to calculate proper fits. We’ve coached customers through problems caused by mismatched tolerances, helping them prevent drip leaks or shifting seats. Rods with micron-level consistency save expensive rework, especially on CNC machines programmed for minimal scrap. This reduces both waste and cost, supporting leaner production.
Running our own plant gives us full control over incoming materials and process parameters. We know which resin batches give crisp machined finishes and which need purging. Equipment maintenance gets top priority, as minor tool wear shows up as surface defects—our techs measure and replace dies before they cause quality issues.
Testing isn’t just certification paperwork. Every run gets a sample for heat resistance, visual clarity, dimensional accuracy, and - most importantly - compliance with regulatory standards for food, pharma, and electronics use. We expose samples to boiling water, freezing brine, and concentrated reagents, comparing every result with prior benchmarks. We consult widely with customers about their pain points and, if our material isn't the best match, we say so honestly.
Traceability relies on batch records. Customers often face audits, and easy access to resin and process logs gives confidence. We photograph and document each stage, because with PTFE, a small process error can remain hidden until later machining. Sharing this background reassures customers we've not only managed production but anticipated their practical questions.
As demand grows for lower emissions and cleaner production, we’ve overhauled our shop to reduce scrap and recover process off-cuts. PTFE’s resistance to most recycling means we collect trimmings for specific recycling partners who turn them into seal filler or non-critical applications. By analyzing cutter wear and press downtime, we’ve reduced dimensional scrap to under three percent. Longer-lasting PTFE means less frequent replacement, and we work with clients to understand total lifecycle emissions rather than chasing hollow “green” labels.
Some producers offshore their mixing and pressing, but we prefer to maintain site control. Local employment grows, and our team shifts skills to meet customer feedback. Sharing production improvements with clients helps projects run smoother. PTFE’s long service life offsets much of the footprint from high-temperature processing—a truth more customers understand as industry standards rise.
PTFE resin must arrive free of moisture and particulate contaminants, as these flaws multiply under heat and pressure. We invest in bulk storage and climate control to prevent condensation before parts ever reach a press mold. Skilled labor forms the backbone of our facility; few plastics demand the same hands-on experience to judge quality as PTFE does.
Machining brings its own hurdles. PTFE deflects under loads, which challenges inexperienced operators. We document best settings for speeds, feeds, and tool geometry, and our technical support works with buyers' machinists to tune processes. Statistically, this reduces tool breakages and costly setup trial-and-error. We maintain tool stock in-house for urgent modification orders.
Market volatility in fluoropolymer resins affects pricing and allocation. We hedge inventory and keep strong supplier relationships to shield customers from sudden shortages. We’ve built relationships with partners for decades, providing consistent supply during market tightness, because we’ve seen firsthand how equipment failures from cheap substitutes endanger whole operations.
We started as a producer looking to serve equipment builders with honest, robust material. Over time, we have seen the impact that dependable PTFE makes in applications where cost-cutting means catastrophic failure. We don’t chase every trend—our commitment is to produce high-integrity sheets and rods, back them with data and experience, and respond to real field problems shared by customers.
Our team keeps learning from installations on every continent. Customers send us feedback after years in the field, sharing both successes and failures. Every improvement to our PTFE sheet or rod reflects practical lessons, not just marketing claims. Our goal remains simple: supply material that stands up to the toughest environments, minimizes downtime, and supports long-term value for our customers and their own clients.
Knowing our PTFE doesn’t leave the gate until it meets our standards keeps our operation steady and our customers coming back—no shortcuts, just proven material, direct from the people who make it.