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Acrylonitrile butadiene styrene

ABS for Tough, Heat-Tolerant Indoor Parts

The classic housing plastic: roughly 85–100 °C heat limit, and it can be vapor-smoothed.

ABS is the plastic of molded housings everywhere, and printed ABS behaves much the same: tough, impact-resistant and good to roughly 85–100 °C under light load, going by typical published data. It's a solid choice for enclosures, housings and fixtures that see warmth but not sunlight.

Its party trick is acetone vapor smoothing. Acetone vapor softens the surface of an ABS part so the layer lines flow together into a glossy finish — useful for parts that will be handled, cleaned or shown to a customer. We offer it as a finishing option.

Outdoors, ABS yellows and turns brittle under UV, and ASA is the better choice there. Like ASA, it shrinks as it cools and is printed in an enclosed machine, and large flat parts can warp.

ABS in Texas heat

In a closed car in summer

Yes, out of direct sun

Outdoors, year-round

No — choose ASA

ABS handles heat about as well as ASA, so it's fine in a hot warehouse or a vehicle interior out of the sun. In direct Texas sunlight it ages quickly — that's what ASA is for.

Where ABS works

  • Electronics housings and enclosures
  • Parts near warm equipment indoors
  • Prototypes that should look and behave like molded ABS
  • Handled parts that benefit from a smooth finish
  • Vehicle interior parts out of direct sun

Where to use something else

  • Outdoor use — choose ASA
  • Solvent contact
  • Large, thin, flat panels prone to warping

Designing parts in ABS

  • If the production part will be molded in ABS, printing the prototype in ABS gives the closest feel.
  • Vapor smoothing rounds sharp edges and can shift small dimensions slightly; tell us which features are critical.
  • Fillets and ribs reduce warping on larger parts.

ABS questions

ABS or ASA?

Indoors they're close. Outdoors, ASA. If you want a vapor-smoothed glossy finish, ABS.

What is acetone vapor smoothing?

Exposing an ABS part to acetone vapor so the surface softens and the layer lines flow together. It gives a glossy finish and a nicer feel in the hand. Flag any critical dimensions before smoothing.

Is printed ABS as strong as molded ABS?

Not quite. Printed parts are strongest along the layers and weaker between them, so orientation matters. We orient parts so the load runs along the layers wherever we can.

Compare with

  • ASA — UV-stable and good to roughly 85–100 °C — the default for parts that live outside.
  • Polycarbonate — Very tough, with a heat limit of roughly 110–130 °C.
  • PETG — Tougher than PLA, good chemical resistance, heat limit of roughly 65–75 °C.
  • PLA vs PETG vs ASA vs Nylon

Check your part

Need a part in ABS — or not sure it's the right one?

Send your file and tell us where the part will live. A person quotes every job, usually within one business day, with a material recommendation if a different one would serve you better.

Get a Quote

Heat figures are typical published heat-deflection ranges for common filament grades at low load (0.45 MPa), not measurements of our parts. Real values vary with brand, colour, print orientation, part design and — for nylon — moisture. If a number matters to your application, tell us and we'll talk through margin and testing.