Before

SLA Resin Electronic Ring as printed - before post-processing

After

SLA Resin Electronic Ring after post-processing

Objective

Bel Air Finishing was tasked with developing a surface preparation process for SLA-printed electronic rings made from BASF 3280 ceramic-filled resin. The goal was to create a smooth, plating-ready surface suitable for 24kt gold electrocoating, without damaging fine part features or introducing surface distortion.

Industry3D Plastic
Part DescriptionElectronic Ring
3D Printing TechnologySLA
MaterialCeramic-filled Resin
Process TechnologyGold Electroplating – Coat
Equipment TypeMultiple Technologies

Solution

To prepare the SLA-printed ceramic-filled resin rings for gold electroplating, Bel Air used a multi-step post-processing approach designed to clean, smooth, and condition the part surface for uniform metal adhesion. The selected process removed build lines and minor imperfections from the BASF 3280 material while maintaining dimensional accuracy and protecting intricate features. This ensured a surface finish capable of supporting consistent 24kt gold electrocoating without blistering or peeling. Bel Air’s post-processing solution provides a repeatable workflow for SLA-printed parts intended for decorative or functional metal finishing in electronics and other consumer applications.

If you are unsure what equipment and media you require to achieve your desired surface finish, send us your part, and we will evaluate it and provide you with a detailed metrology report.

To explore various achievable finishes, you can also request a comparative keychain sampleshowcasing a range of surface textures and polish levels.