Nile Polymers FAQ

PVDF stands for polyvinylidene fluoride, a melt-processable fluoropolymer used where chemical resistance, purity, UV resistance and durability matter. Kynar® is Arkema’s registered trademark for its PVDF materials.

Nile Polymers uses Kynar® PVDF in Strong-Ty® cable ties, Purisan™ impellers and Fluorinar-C™ and Fluorinar-B™ filaments. Light Link™ combines Kynar® PVDF with a UV-curable resin formulation. Learn more about PVDF.

Strong-Ty® 4″ Standard (NPC204N), 4″ Flex (NPC204SN) and 8″ Standard (NPC208N) PVDF cable ties are lot traceable and manufactured under an ISO 13485:2016-certified quality management system. Finished-tie ISO 10993-5:2009 reports are available for the 4″ Standard and 8″ Standard. FDA 21 CFR 177.2510, REACH and RoHS support applies at the Kynar® PVDF material level.

USP Class VI documentation applies to the Kynar® PVDF resin. Contact Nile Polymers for supporting documentation applicable to your product.

Fluorinar-C™ Kynar® PVDF filament passed ISO 10993-5:2009 in vitro cytotoxicity testing with Grade 0 (no reactivity). Read the Fluorinar-C™ test details below.

Qualifications are specific to the product, material and manufacturing process. They should not be assumed to apply to every color, formulation, finished assembly, or 3D-printed part. ISO 13485 concerns the manufacturing quality system; it is not a product sterilization rating.

Request the relevant documentation and include the product name, grade or color, lot number if available and the standard you need.

Start with the Kynar® chemical-resistance guide, then evaluate the exact material in your process. Chemical concentration, mixtures, temperature, exposure time and mechanical loading can change the result.

For printed parts, test representative samples made with your intended print settings. Inspect dimensional change, swelling, cracking, strength and any sealing or leakage requirements. A lack of weight gain alone does not establish suitability.

Each user must use their own judgment to determine suitability for their application and operating conditions. For product documentation, email info@nilepolymers.com.

Find the current files under Printing Guide & Resources → Bambu A1 Print Profile on the Fluorinar-C™ page or Fluorinar-B™ page.

Both Fluorinar-C™ and Fluorinar-B™ Test Coupling projects (.3MF) include the parts, filament settings and print settings. Open the matching project in Bambu Studio; no separate preset installation is needed.

The Fluorinar-C™ project contains a Y coupler test part; the Fluorinar-B™ project contains a coupling and nut. Each Bambu Studio 3MF project includes printer selection, filament settings and print settings. Choose “Open as project” to retain the included settings.

For a starter 3MF, download the project and open it in Bambu Studio. Choose “Open as project” if prompted.

Before slicing, confirm the printer, nozzle, build plate and filament assignment. Map the filament to the correct AMS or AMS Lite slot if using one.

Email info@nilepolymers.com with your saved Bambu Studio 3MF project, clear photos of the print and the filament grade. Include your printer model, nozzle size, build plate and whether you used AMS, AMS Lite or an external spool.

Save your latest filament and process settings into the 3MF before sending it. Tell us what went wrong and which setting you changed most recently.

Yes. Fluorinar-C™ Kynar® PVDF filament passed in vitro cytotoxicity testing conducted by Pacific BioLabs according to ANSI/AAMI/ISO 10993-5:2009. The MEM extract test showed Grade 0 (no reactivity) at both 24 and 48 hours.

The filament sample was autoclaved at 121 °C for 30 minutes before testing. These results apply to the tested Fluorinar-C™ filament under the study conditions and do not establish a cytotoxicity qualification for Fluorinar-B™. Each user must evaluate finished printed parts for their intended application.

Pacific BioLabs study 19D0226S-M01, dated May 3, 2019. Request the test report.

Both grades are made with Kynar® PVDF. Fluorinar-B™ uses a 250 °C print temperature; Fluorinar-C™ uses 255 °C (250 °C for the first layer in the supplied project). Use the project supplied for your grade. Diameter options are listed above; follow the stock links for current availability.

Fluorinar-C™ uses a Kynar® PVDF copolymer formulation. Compared with a homopolymer, it offers greater flexibility and lower crystallinity, which can make build-plate adhesion and printing easier.

Fluorinar-H™ uses a PVDF homopolymer formulation. Its greater crystallinity can make shrinkage and adhesion more challenging. Chemical and thermal performance depend on the exact grade and application.

Fluorinar-C™ and Fluorinar-B™ are available online. Contact us before planning an order for Fluorinar-H™ or another specialty formulation.

Yes. Choose a 100 g Fluorinar-C™ sample in 1.75 mm or 2.85 mm, or a 100 g Fluorinar-B™ sample in 1.75 mm or 2.85 mm, subject to availability. Use a small print to check feeding, adhesion and part quality on your equipment.

Our Fluorinar™ filament spools have an outside diameter of 8 inches (203.2 mm), an overall width of 2.75 inches (69.9 mm) and a center hole diameter of 2 inches (50.8 mm).

Spools are sold by net filament weight. Length varies with actual diameter and formulation.

Not necessarily. Nile Polymers has demonstrated Fluorinar-C™ on a Bambu Lab A1 with AMS Lite and Bambu Studio. We also have experience with Ultimaker printers and Cura.

The printer must support the temperatures required by your profile and feed the filament consistently. Bed surface, part geometry and cooling all matter. Our A1 demonstration shows that a heated chamber is not required for every Fluorinar-C™ part.

Read our Bambu A1 printing example.

Download the Fluorinar-C™ Coupler Print Test (.3MF) from Fluorinar-C™ → Printing Guide & Resources → Bambu A1 Print Profile. It includes the Y coupler test part, filament settings and print settings for a Bambu Lab A1, 0.4 mm nozzle and 1.75 mm filament.

Open it as a project in Bambu Studio. The extrusion temperature is 255 °C, with 250 °C for the first layer in the supplied project. Confirm your printer, nozzle, installed build plate and filament assignment. Use the printer’s default settings, then slice and print.

No separate preset installation is needed to use the project. To reuse its settings in new projects, save both the Fluorinar-C™ filament preset and process preset in Bambu Studio.

The Y coupler uses the project’s Fluorinar-C™ filament entry. Map it to your loaded Fluorinar-C™ spool. Confirm 255 °C for the nozzle and 250 °C for the first layer before printing.

Reopen the Fluorinar-C™ Coupler Print Test project, remove the test parts and import your model. Assign it to the Fluorinar-C™ filament entry, check the printer and plate settings, then use Save As to keep your new project.

Small cross-sections can retain too much heat when the nozzle returns before the previous layer has cooled. Try printing two or more well-spaced parts using the normal by-layer sequence, so each part gets more cooling time between layers.

Begin with the cooling settings in your tested profile. If extra part cooling is needed, adjust it gradually and check layer adhesion. More fan is not automatically better for PVDF.

Shrinkage depends on geometry, formulation, orientation, cooling and print settings. Print and measure a calibration part before applying dimensional compensation to a production model.

In an earlier Nile Polymers test, a nominal 20 mm cube printed with Fluorinar-C™, 0.2 mm layers and 30% infill measured:

These are historical test results, not guaranteed shrinkage values or a universal scaling factor.

HIPS and TPU have been evaluated as support materials, but neither is a universal solution. HIPS has limited adhesion to PVDF; TPU can adhere more readily but may leave residue or inclusions when removed.

Where possible, choose an orientation or part design that reduces the need for supports. Test the complete material and removal process before using it on a finished part. Do not assume a solvent that removes a support material is compatible with the PVDF print.

Yes. Nile Polymers works with Granville 3D Printing on Fluorinar-C™ projects. Send your model or drawing, quantity, required tolerances and intended chemical and temperature exposure to info@nilepolymers.com.

Learn about our printing collaboration.

Download the Fluorinar-B™ Test Coupling (.3MF). It includes test parts with Fluorinar-B™ filament and process settings. Find the full instructions under Printing Guide & Resources → Bambu A1 Print Profile.

Open the file in Bambu Studio and choose “Open as project” to load the included settings. Confirm your printer and nozzle and map Fluorinar-B™ to your loaded spool. Use the printer’s default settings, then slice and print.

A 100 g Fluorinar-B™ sample is offered in 1.75 mm and 2.85 mm diameters, subject to availability, so you can evaluate the filament before ordering a full spool.

Yes! These printing parameters are a useful starting point for other Bambu printers and nozzle sizes. Some combinations may benefit from additional optimization.

Reopen the Fluorinar-B™ Test Coupling, remove the test parts and import your own model. Assign it to the Fluorinar-B™ filament entry and use Save As to keep your new project.

You can keep using the Fluorinar-B™ Test Coupling without installing separate presets. To make the settings available in new projects, save both the Fluorinar-B™ filament preset and the process preset in Bambu Studio. The filament preset holds temperature, flow and cooling settings. The process preset holds layer height, speeds and other print settings.

Use a profile developed for your specific filament. Fluorinar-B™ is a separate formulation, so Fluorinar-C™ settings should not be treated as its recommended profile. Follow the Fluorinar-B™ product page for its own files and guidance.

For setup help, send your 3MF project, photos and printer details to info@nilepolymers.com.

• Strong-Ty® 4″ Standard PVDF Cable Tie - NPC204N: 102 mm long, 4.5 mm wide and 1.5 mm thick.
• Strong-Ty® 4″ Flex PVDF Cable Tie - NPC204SN: 102 mm long, 3.1 mm wide and 1.0 mm thick.
• Strong-Ty® 8″ Standard PVDF Cable Tie - NPC208N: 203 mm long, 4.5 mm wide and 1.5 mm thick.

Select your Strong-Ty® style and package size.

The 4″ Standard and 8″ Standard have the same width and thickness; their length differs. The 4″ Flex is narrower and thinner, making it more flexible for compact assemblies and restricted installation spaces.

All three styles are made from pure virgin Kynar® PVDF. “Natural” describes their color. “High-Purity” describes the material rather than a separate tie style.

The 4″ Standard, 4″ Flex and 8″ Standard are offered in quantities of 100, 1,000, 5,000 or 10,000 ties, subject to availability. Select the style and package size, then enter the number of packages you want.

Orders ship with up to 5,000 ties per box. A 10,000-tie order requires two boxes. Check the product page for current availability.

The 4″ Standard, 4″ Flex and 8″ Standard PVDF cable ties on this page are supplied in a natural color for bioprocessing, cleanroom and pharmaceutical applications.

Strong-Ty® Blue is a separate colored offering for chemical processing, UV and outdoor exposure, plating, photovoltaic, plenum and harsh industrial service. Check its product page for sizes and package options.

No. The 4″ Standard, 4″ Flex and 8″ Standard PVDF cable ties are manufactured and packaged in a cleanroom and supplied non-sterile.

The 4″ Standard (NPC204N) and 8″ Standard (NPC208N) were evaluated after one 30-minute autoclave exposure at 121 °C. PVDF also offers resistance to radiation and many chemicals, making gamma and chemical sterilization relevant options to evaluate.

Performance depends on the sterilization method, dose or concentration, temperature and number of cycles. Confirm the process for your specific tie and application. Ask us about your sterilization requirements.

Purisan™ is a three-blade, marine-style impeller injection molded from solid Kynar® PVDF. The impeller is sold separately from the shaft and drive equipment.

View Purisan™ impellers.

Purisan™ impellers are offered in 4-, 5- and 6-inch nominal diameters. M16 × 2 threading is available for the prop.

See the product page for part numbers, current prices and availability.

Yes. A 3/4-inch-diameter shaft coated with Kynar® PVDF is available by custom order. Minimum order: 10 shafts.

Request a custom shaft quote.

Each user must use their own judgment to determine suitability for their application and operating conditions.

The Kynar® Chemical Resistance Guide (PDF) provides material reference information.

Light Link™ is a white photopolymer resin that combines Kynar® PVDF with a UV-curable formulation. It is used for resin printing. Fluorinar-C™ is a solid filament used for FDM printing.

View Light Link™ resin or Fluorinar-C™ filament.

Light Link™ is intended for compatible 405 nm SLA, DLP and MSLA printers. Review the technical data sheet and your printer’s requirements when evaluating compatibility. Exposure and post-curing affect the finished part.

See the Light Link™ product page for printing guidance.

Light Link™ resin and finished parts are white. Bottle sizes are 0.5 kg and 1 kg.

Check the product page for current availability. If your bottle size is unavailable, ask about restock timing; the product page also links to our partner’s purchasing option.

Yes. The finishing process includes an isopropyl alcohol (IPA) wash, complete air drying and UV post-curing.

Follow the Technical Data Sheet (PDF), the Safety Data Sheet (PDF) and your equipment instructions for the full procedure.

The Light Link™ product page includes resin preparation, starting print settings, washing and post-curing guidance.

• Technical Data Sheet (PDF)
• Safety Data Sheet (PDF)

Evaluate the finished part for its intended application after printing and post-curing.

Yes. Email sales@nilepolymers.com with the product, size or formulation, quantity, destination and required delivery date. For custom cable ties, include a drawing or the dimensions and performance requirements.

We can review feasibility, pricing, availability and lead time for your request.

Most in-stock orders are processed within 1–3 business days. Larger, special, or custom orders may take longer. Processing time is separate from carrier transit time.

International shipping is available. Charges are calculated at checkout or quoted separately; destination duties, taxes and brokerage fees are the customer’s responsibility unless otherwise agreed in writing.

Read the full shipping policy.

Our published refund policy accepts returns within 30 days of delivery for unopened products in their original condition and packaging. Contact us before sending a product back.

For a damaged, defective, or incorrect item, email sales@nilepolymers.com promptly with your order number and details. The full policy explains return shipping and refunds.

Read the current refund policy.

Our privacy policy explains how information is collected, used and shared when you visit the store, place an order, or contact us.