Product description

Prusament ASA Natural 800g (NFC) is a premium ASA filament manufactured in‑house by Prusa Research. ASA (acrylonitrile styrene acrylate) is a technical material with properties similar to ABS but with a number of improvements – it is UV stable, less prone to warping, and produces less odor during printing. This makes it ideal for long‑term outdoor parts and functional mechanical components.

This new variant contains approx. 800 g of filament on a redesigned spool with an NFC tag according to the OpenPrintTag standard, which allows the printer or Prusa application to instantly recognize the material, without reliance on the cloud or vendor lock‑in.

---

Main advantages of ASA material

• Excellent for outdoor use – high resistance to UV radiation, does not yellow and become brittle as quickly as common plastics.
• High heat resistance – prints remain stable at temperatures up to 93 °C, suitable for parts in warmer environments (e.g. in a car, near engines, in electrical cabinets).
• Durable and strong material – good mechanical strength and toughness, suitable for functional mechanical parts, brackets, covers, jigs.
• Can be smoothed with acetone vapors – to achieve a smooth, “painted” surface; the surface can be further sanded and post‑processed.
• Good dimensional accuracy – Prusa guarantees a diameter tolerance of ±0.04 mm and very consistent color.
• Integrated NFC tag (OpenPrintTag) – easy material identification by the printer or mobile app, works fully offline.

---

Recommended applications

• Outdoor parts and accessories – sensor housings, camera mounts, garden accessories, pool parts, bike parts, etc.
• Automotive and technical parts – interior mounts, caps, cable holders, assembly jigs.
• Functional prototypes – prototypes exposed to higher temperatures or UV radiation.
• Parts requiring a smooth surface – after acetone smoothing you can achieve a surface similar to painted plastic.

---

Printing properties and recommended settings

For best results, it is recommended to use the Prusament ASA profile in PrusaSlicer or corresponding settings in other slicers:

Parameter	Recommended value
Nozzle temperature	260 ± 5 °C
Bed temperature	110 ± 5 °C
Recommended build plate surface	satin PEI (optionally smooth / lightly textured PEI)
Print speed	up to ~200 mm/s (depending on printer and model)
Cooling	approx. 0–50 %, typically ~30 %

Printing tips

• An enclosure is strongly recommended, especially for larger models – it reduces the risk of warping and corner lifting.
• Ensure good ventilation in the room, but avoid drafts directly around the printer to prevent layer cracking and deformation.
• The material is slightly hygroscopic – for longer storage we recommend drying the filament according to the manufacturer’s instructions.
• For large objects it is advisable to use a brim, draft shield, or a higher first layer temperature.

---

Features of the new spool with NFC (OpenPrintTag)

• Redesigned, thinner spool – better compatibility with multi‑material and multi‑color systems.
• Simple locking mechanism – easy disassembly of the spool for recycling or respooling.
• Fully rewritable NFC tag – open OpenPrintTag standard, usable across ecosystems.
• Works completely offline – all key information about the material is stored directly in the tag.

---

Technical parameters of the material (typical values)

• Material: ASA (acrylonitrile styrene acrylate)
• Filament diameter: 1,75 mm
• Diameter tolerance: ±0,04 mm
• Density: approx. 1,07 g/cm³
• Heat deflection temperature (HDT): up to 93 °C (at 0,45 MPa)
• Hardness: approx. 78D (Shore D)
• Recommended printing technology: FDM/FFF
• Manufacturer: Prusa Polymers a.s. (Prusa Research), Czech Republic

---

Why choose Prusament ASA Natural

• Original material from the manufacturer of Prusa printers – optimally tuned for Prusa printers, but fully usable on other FDM printers as well.
• Transparent quality control – each spool has its own QR code with access to production data and diameter measurements.
• Natural shade (Natural) – suitable for technical prototypes, parts for further coloring, or wherever you do not want a strong color.
• Consistent results – excellent layer adhesion, reasonable shrinkage (lower than ABS), and reliable printing of detailed models.

Prusament ASA Natural 800g (NFC) is an excellent choice for anyone looking for a reliable and durable technical filament for long‑term use, especially in outdoor or more thermally demanding environments.

Key features:

• Premium ASA filament from Prusa Research manufactured in‑house in the Czech Republic
• High UV stability and resistance to weathering – ideal for outdoor parts
• Heat resistance up to ~93 °C, suitable for temperature‑stressed functional components
• Excellent dimensional stability and less shrinkage than ABS
• Integrated NFC tag (OpenPrintTag) for easy spool identification, works completely offline
• New, thinner spool design with simple lock for easy disassembly and recycling
• Can be smoothed with acetone vapors and easily sanded for a smooth surface
• Guaranteed filament diameter accuracy of ±0,04 mm and consistent quality
• Suitable for technical prototypes, mechanical parts, brackets, covers, and outdoor accessories