How to Paint After Sandblasting


Sandblasting metal prior to painting is an extremely efficient way to remove built-up layers of dirt and damaged paint, giving you a clean, undamaged substrate on which to apply new paint. While some materials, such as aluminum, can be painted without other preparation due to their inherent corrosion resistance, steel must be carefully primed with zinc coating prior to painting, particularly when you are doing vehicle bodywork.

Things You'll Need

  • Wax and grease remover
  • Clean rags
  • Zinc-based self-etching primer
  • Epoxy primer
  • Wet one of the rags with wax and grease remover, then thoroughly wipe the part that has been sandblasted first with the wet rag, then with the dry rag. This will remove any residue of grease or dust produced by the sandblasting process, leaving the metal in its natural state. Use caution to avoid touching the metal with your hands since the oils on your fingers can damage paint.

  • Dust the metal with a light coat of the self-etching primer, being careful to avoid using too much. The primer has a slightly green shade and should appear as little more than a tint of the metal, rather than an all-over primer. Allow the primer to dry according to the package instructions.

  • Spray the part with epoxy primer next, providing at least three light coats. Putting too much epoxy primer on results in runs or sags in the part, requiring sanding. Applying several light coats prevents the need for sanding. Allow the epoxy primer to dry according to the package directions before applying paint to the sandblasted part.

  • Paint the sandblasted part with your choice of paint. If necessary and when using paint requiring it, follow this step with the application of clear top coat to finish the project.

Tips & Warnings

  • Parts that are heavily pitted from rust may not be repairable, even if they are cleaned of their surface rust. Avoid putting faith in cleaned structural parts such as chassis or suspension parts. Replace these with new parts when possible.

Related Searches


  • "Auto Body Repair Technology"; James Duffy; 2008
  • "Pro Paint & Body"; Jim Richardson; 2002
  • "How to Paint Your Car on a Budget"; Pat Ganahl; 2006
  • Photo Credit Jupiterimages/ Images
Promoted By Zergnet


You May Also Like

  • Metal Sand Blasting Standards

    Metal can be sand-blasted to remove rust, grit and old paint. Sand blasting can be done to roughen a smooth metal surface...

  • How to Sandblast Paint

    Sandblasting paint is probably the easiest, albeit not the neatest, way of getting paint quickly off of a surface, especially if you...

  • How to Sandblast Rusty Steel

    Removing stubborn rust from steel requires more than elbow grease and cleaners. Sandblasting is the most effective way to get rid of...

  • How to Choose Sandblasting Media

    Sandblasting is a process in which sand, glass beads or some other medium is shot at high speed through a machine across...

  • How to Sand Blast a Car

    Sandblasting is a powerful way to remove paint from virtually any car body part. With a sand blaster, paint, rust and primer...

  • How to Prepare for a Powder Coating

    Powder coating is applied by heating an object and then dipping it into a tank of fluidised, or aerated, powder coat. The...

  • How to Tips on Auto Sandblasting

    Sandblasting is a mechanical technique that is commonly used to remove rust and old paintwork from auto body parts. It is a...

  • How to Sandblast Paint Off Concrete

    Sandblasting is an effective method for removing paint from concrete surfaces when you use the equipment properly. Incorrectly using a sandblaster can...

  • How to Sandblast & Paint Rims

    Having nice rims on your vehicle is possible without going to a store and spending big bucks. With the right equipment, you...

  • Can I Sandblast Paint on Wood?

    When you're remodeling part of a house or piece of wooden furniture, adding a new coat of paint or a fresh finish...

  • Tips for Removing Rust by Sandblasting

    Sandblasting, if done properly, is one of the most effective ways to remove rust. However, it is extremely messy and can even...

Related Searches

Check It Out

How To Travel For Free With Reward Points

Is DIY in your DNA? Become part of our maker community.
Submit Your Work!