What are Prusament pellets and why does Prusa sell them in 14-kilogram bags?

Prusa Research has started shipping polymer pellets in quantities that fit on a workshop shelf. The company calls them Prusament Pellets. They are the exact material that feeds the filament production lines in Prague.

Raw pellets usually arrive at factories with high moisture content. Prusa dries them before extrusion. Now a portion of those dry pellets goes straight into a sealed canister or bag instead of the extruder. The moisture level stays low. In most cases the material is ready to print the moment you open the package.

Why pellets instead of filament

Fused Granular Fabrication prints directly from pellets. The process skips the filament manufacturing step entirely. That removes a cost layer. Pellet extruders can also push several kilograms of material per hour. Standard filament printers move a fraction of that. The combination makes FGF attractive for medium-sized objects such as furniture or sculptures.

No figure is given for how many FGF machines are currently in use. It only states that the packaging suits medium-sized models.

What the lineup looks like

Four base polymers ship in natural color. Two package formats exist. The smaller units come in 5‑liter plastic canisters. The larger units use aluminum‑plastic bags.

PLA Natural costs 44.99 USD for 4 kilograms or 149.99 USD for 14 kilograms. PETG Natural uses the same weights at 44.99 USD and 134.99 USD. ASA Natural comes in 3.5 kilograms for 54.99 USD and 12 kilograms for 169.99 USD. PC Blend Natural mirrors ASA weights at 69.99 USD and 199.99 USD. Euro prices include VAT. Dollar prices include import duties.

Research and education use cases

University labs with desktop filament extruders can turn these pellets into experimental 1.75 mm or 2.85 mm filament. No need to purchase industrial volumes. Researchers can also mix the natural base with custom masterbatches. That allows testing of colorants, UV stabilizers, or mechanical additives such as carbon nanotubes or glass fibers.

The blog post does not specify whether the pellets already contain processing aids or stabilizers. A comment under the article asks exactly that. Prusa has not replied in the published thread.

Handling the packages

For the canisters, a 3D‑printed opening wrench designed by SquasherJoe is recommended. A matching extension helps with dispensing. Both files are free to download. The larger bags do not mention a special tool.

Published on October 13, 2026, the post carries a three‑minute read estimate from author Jakub Kočí.