ABSi (Acrylonitrile Butadiene Styrene – Biocompatible) is an ABS type thermoplastic with high impact strength. This material is stiffer and more durable than the standard ABS material, and appears translucent. That makes ABSi ideal for applications which require light transmission or flow monitoring, such as in the automotive industry or for medical device prototyping. The ABSi material used in FDM is USP Class VI approved, a standard related to the pharmaceutical and biotechnology industries.

Technical Specifications

Standard lead time Minimum of 5 working days.
Standard accuracy ± 0.15% (with lower limit on ± 0.2 mm)
Minimum wall thickness 1 mm
Layer thickness 0.25 mm
Maximum part dimensions Dimensions are unlimited as components may be composed of several sub-parts. The maximum build envelope is 914 x 610 x 914 mm.
Surface structure Unfinished parts typically have a rough surface but all kinds of fine finishes are possible. FDM parts can be sandblasted, smoothed, colored/impregnated, painted and coated.


  Units ASTM# Range
Density g/cm³     1.08
Tensile Strength MPa  D638   37
Tensile Modulus MPa  D638   1915
Flexural Strength MPa  D790   62
Flexural Modulus MPa  D790  1917
Notched Izod Impact J/m  D256  96.4
Unnotched Izod Impact J/m  D256  191.1
Heat Deflection Temp °C D648  at 0.45 MPa: 86
at 1.81 MPa: 73
Elongation at Break     4.4
Color     Translucent

Actual values may vary with build condition

Finishing Degrees

Finishing Support removal Sandblasting Smoothing Primer Coating/Paint
Building layers visible
Spray Paint    
Spray painted according to RAL color
Coated in flocking fiber for velvet-like touch; available in 20 colors
Soft Touch
Soft touch coating according to RAL color (translucent)
Dead Matte Paint
Our most matte option, with gloss factor of 10%
Matte Paint
Gloss factor of 30%
Satin Paint
Gloss factor of 50%
High-Gloss Paint
Our most glossy option, with gloss factor of 90%
Fine-Texture Paint
Matte color paint with fine texture
Medium-Texture Paint
Matte color paint with medium texture
Coarse-Texture Paint
Matte color paint with coarse texture

Design Guidelines

We’ve put together our trusted tips, tricks and best practices to get you off to a solid start. If you’ve been wondering whether this material allows for interlocking parts or embossing, or if you just want to avoid common design mistakes, check out this handy design guide.

Learn more

How Does Fused Deposition Modeling Work?

FDM is a filament-based technology where a temperature-controlled head extrudes a thermoplastic material layer by layer onto a build platform. A support structure is created where needed and built in a water-soluble material.