Priming Prints

What you'll need

  • Spray primer
  • Sandpaper or flexible sanding strips (220/320, 400/600 grit)
  • Soft toothbrush
  • Tack cloth
  • Drill
  • Dowel
  • Wood block
  • Safety equipment: gloves and mask
  • Flush cutters (optional)
  • Rotary tool or hand file (optional)

1. Remove supports

Use a set of flush cutters or your hands to remove supports.

Remove supports

2. Sand down support marks

Use a rotary tool, hand file, or 220-grit sandpaper to remove support marks.

Sand down support marks

3. Sand the surface

Beginning with 220- or 320-grit sandpaper or flexible sanding strips, sand the surface. Follow up with 400 or 600 grit.

Sand the surface

4. Mount the print

Drill a starter hole in an inconspicuous spot and mount your print on a thin dowel. Insert the dowel into the wood block.

Mount the print

5. Wash the surface

Use a toothbrush and water to wash away dust.

Wash the surface

6. Wipe the surface

Run the tack cloth over the surface using long, gentle strokes.

Wipe the surface with a tack cloth

7. Mix the primer

Gently swirl the primer for 2 to 3 minutes in a circular motion.

Mix the primer


Avoid shaking the can to prevent bubbly paint.

8. Spray the first coat of primer

Spray in short, rapid strokes, 6 to 8” from the part. Start each stroke before the part and end after the part.

Spray the first coat of primer


Inspect the first coat for any areas that need additional sanding or filing. If necessary, rework and polish the part with fine (>600 grit) sandpaper. After sanding, be sure to repeat steps 5 to 6 to clean off dust before respraying.

9. Spray the final coat of primer

Add another thin coat of paint.

Spray the final coat of primer

Contact Support

Questions? Get in touch.