Name: Prusament ASA: 1.75 mm Filamant
Brand: Prusa

Extra Features

Compact row for standout or material-specific features only.

Filament1.75 mm, 800 g SpoolUV Stable93°C HDT at 0.45 MPa86°C HDT at 1.80 MPaHigh ToughnessAcetone SmoothableOutdoor Use

Detailed Description

# Prusament ASA

Overview

Prusament ASA is a technical FDM filament from Prusa Polymers for durable mechanical, engineering and outdoor parts. Compared with ABS, ASA offers better UV stability, reduced warping and strong temperature resistance while retaining good toughness and impact performance.

Its UV stability makes it especially suitable for outdoor components, housings, brackets, automotive prototypes and tooling. For easier rigid materials, Prusament PETG offers lower warping, while Polymaker PLA Pro focuses on easier high-speed printing.

Key Benefits

Best For

Technical Specifications

Specification	Value
Material Type	Filament
Chemistry	ASA
Printing Compatibility	FDM
Applications	Prototype, Engineering, Automotive, Tooling, Production
Print Temperature	255–265°C
Bed Temperature	105–115°C
Published Print Speed	Up to 200 mm/s
Format	1.75 mm, 800 g spool
Diameter Tolerance	±0.04 mm
Tensile Yield Strength	42 ±1 MPa horizontal; 45 ±2 MPa vertical XZ
Tensile Modulus	1.6 ±0.1 GPa horizontal; 1.7 ±0.1 GPa vertical XZ
Interlayer Adhesion	11 ±1 MPa
Heat Deflection Temperature	93°C at 0.45 MPa; 86°C at 1.80 MPa
Warping	High
Abrasive	No
Enclosure	Recommended for larger parts
Post-Processing	Wet/dry sanding; acetone smoothing and bonding
Storage / Drying	Keep dry; dry if moisture-related issues occur
Colour / Finish	Multiple colours; smooth finish
Price	Approximately US$25.92 per 800 g spool — check manufacturer’s current listing

Note: Mechanical and thermal values are manufacturer test results and depend on orientation, geometry, processing and test conditions.

Printing Compatibility

Recommended Setup

260 ±5°C nozzle
110 ±5°C heated bed
Standard 0.4 mm brass nozzle suitable
Satin sheet recommended
Enclosure or tall draft shield recommended for larger parts
Ventilation or filtration recommended

The Prusa CORE One+ is a strong match for ASA because of its enclosed engineering-material workflow.

Other relevant indexed printers include the Bambu Lab P2S, Bambu Lab H2D and Creality K2 Plus. The H2D and K2 Plus add active chamber heating, useful for larger warp-prone parts.

Important: Large ASA parts can warp. Use an enclosure, warmer ambient conditions or a tall skirt and avoid drafts.

Important: ASA contains styrene and produces fumes during printing. Use suitable ventilation or filtration.

Mechanical Profile

Property	Information
Tensile yield strength	42 ±1 MPa horizontal; 45 ±2 MPa vertical XZ
Tensile modulus	1.6 ±0.1 GPa horizontal; 1.7 ±0.1 GPa vertical XZ
Interlayer adhesion	11 ±1 MPa
HDT	93°C at 0.45 MPa; 86°C at 1.80 MPa
Toughness	High
Elasticity	Medium
Abrasivity	None

Processing and Handling

Prusament ASA prints at approximately 260 ±5°C with a 110 ±5°C bed. The technical datasheet lists speeds up to 200 mm/s.

Warping is the main processing challenge, especially on larger parts. Enclosed printers such as the Prusa CORE One+, Bambu Lab H2D and Creality K2 Plus provide stable environments, while the Bambu Lab P2S also supports ASA in its enclosed chamber.

Use suitable ventilation or filtration because ASA emits styrene fumes during printing.

Colour and Finish

Multiple colours
Smooth printed finish
Glossy finish possible after acetone smoothing
Acetone bonding supported
800 g NFC spool

Comparison Section

Feature	Prusament ASA	Prusament PETG	Polymaker PLA Pro
Material family	ASA	PETG	Toughened PLA
UV resistance	High	General outdoor suitability	Not a dedicated UV-stable material
Warping	High	Low	Low
Nozzle temperature	255–265°C	240–260°C	210–230°C
Bed temperature	105–115°C	70–90°C	30–60°C
Heat resistance	93°C HDT at 0.45 MPa	~68°C HDT	55.6°C HDT at 1.8 MPa
Enclosure	Recommended for larger parts	No	No
Abrasive	No	No	No
Acetone smoothing	Yes	No	No
Typical use	Outdoor, automotive and heat-resistant parts	Tough engineering parts	High-speed prototypes and fixtures

Recommended use: Choose Prusament ASA for UV-exposed, outdoor and higher-temperature engineering parts. Choose Prusament PETG for easier low-warping printing or Polymaker PLA Pro for easier high-speed prototypes and tooling.

Callout Section

Recommended use: Best for outdoor, automotive and engineering parts requiring UV stability, toughness and higher temperature resistance. Suitable enclosed printers include the Prusa CORE One+, Bambu Lab H2D and Creality K2 Plus.