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Finishing

Painting for 3D printed parts

Adds colour and a smooth, even surface that hides layer lines.

Unchanged
Strength and stiffness
Strength
Unchanged
Printed partPrimer / fillerColour coatClear coat (optional)ADDED BUILDLAYER STACK, SECTION VIEW, THICKNESS NOT TO SCALETITLEPAINTINGHP3D-FIN-002SCHEMATIC, QUALITATIVESCALE NTSSHEET 1 OF 1

Finish profile

Properties added

  • Surface finishSmooth, gloss or satin
  • StrengthUnchanged
  • Water resistancePaint film sheds water
  • Chemical resistanceDepends on paint system
  • Wear / abrasionClear coat helps
  • Colour / lookAny colour, any gloss level
  • Electrical conductivityUnchanged

Trade-offs

  • Dimensional changeAbout 0.03 to 0.1 mm
  • Lead-time impactPrep, coat and cure steps

Typical values on a 0 to 4 scale.

Suitable materials

  • FDMSuitable
  • SLALight prep
  • SLS nylonSuitable
  • PolyJetLight prep
  • Metal partsPrime first

Painting specification

Film thicknessAbout 0.03 to 0.1 mm
PrepBlast or sand, then prime
OptionsColour, gloss level, clear coat
Tell usThe paint system, if you supply one

Painting FAQ

Does paint change dimensions?

It adds about 0.03 to 0.1 mm. Mask mating faces or tell us which features are critical.

What prep does the part need?

FDM and SLS parts are blasted or sanded and primed. SLA and PolyJet parts take light prep.

Can you match a colour?

Send the colour reference with your order and we will confirm what can be matched.

Companies that use HenleyPrint3D

  • Rolex
  • Audi
  • CERN
  • Nissan
  • University of Cambridge
  • UKAEA
  • BBC
  • Porsche
  • Rolls-Royce
  • Red Bull Powertrains

Related guides

Process pages: FDM 3D printing, SLA 3D printing, SLS 3D printing. Material data: 3D printing materials.

Instant quote

Send your files for review

Upload a CAD model for an engineer-reviewed quote. Tell us the finish and we will confirm it against the part.

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How instant 3D printing quotes work