This guide will show how to finish our 3D printed parts to match the OE Delica plastics.
- Sand all exterior surfaces of the part with 80 grit sand paper. This will knock down the ridges of the layers and help to blend contours
2. Use automotive filler primer to paint the external surfaces of the part. 2 medium coats are recommended. For best results, allow to dry overnight. Longer drying improves sand-ability in step 3.
3. Sand the primer with 220 grit until smooth.
4. Color matching: For the grey interior Duplicolor PN: HVP111 (available at autoparts stores) is an almost perfect match. The HPV111 is also great for refreshing interior trim.
For black plastics, a standard Rust-Oleum semi-gloss black works well.
5. Spray 2 light base color coats following the directions on the respective paint. 2 coats is recommended, as the primer soaks up much of the first coat. It is ok to have imperfections at this stage. Later coats will cover them up.
6. Apply 3-6 dust coatings. Hold the can 12-18 inches away from the part and spray the paint in quick even strokes. You only want a small amount of paint to hit the part, and you do not want the paint to gloss over, otherwise no texture will form. Allow to dry partially and then repeat the process for the following coats. The dust coating helps to add texture to the surface to match the OE plastics.
6. Allow to dry overnight before installing.