It needs two processes of orbital sanders to remove paint from the surface. The important process is the movement of the sanders to release paint, while the remaining paint is scraped away by the sanding attachment or the rough surface of the sandpaper.
The movement part of orbital sanders to scrape the paint away from the surface is spinning heads and a variant of sanding discs from heavy-grit sanding discs to fine-grain polishers. Compared to disc sanders, the rotation and vibration of orbital sanders lessen the risk of leaving a circular pattern on the surface.
Furthermore, follow these step by step below to remove paint with orbital sanders to get the beautiful result.
1. Discover the Base under the Paint
It is necessary to identify the material of the base under the paint. Instead of chemical paint remover, use a sander to clean layers of paint off drywall because chemical paint remover can damage the drywall.
The orbital sanders are also suitable to remove paint from hardwood floors, plain door frames, or even metal surfaces. If the project is a molded baseboard, it will need to use chemical paint stripper so the sanding process will not destroy its contours.
2. Prepare Surface of Sanding Project
The surface preparation of sanding projects needs three essential steps, which are clean the painted surface, tape off the edges, and apply some paint remover.
The cleaning process of the surface can be done by a grease-cutting cleaner, dish detergent, or some all-purpose household cleaners. Cleanse the painted surface thoroughly, rinse it well, and let the surface dry overnight.
Then limit the area of paint removing with the tape on the edges. It is necessary, so you don’t sand into spots where the paint is not being removed.
After limiting the area of paint removing, apply some paint remover on the project’s surface. The environment-friendly paint remover commonly comes in a spray bottle. So, spray the paint remover on the surface and let it stand for a few minutes.
Then, using the paper towels or clean rages, you can wipe off the surface. If many paint flakes don’t dissolve in the paint remover, use a paint scraper to lift it off. Don’t forget to use a face mask and eye goggles when spraying the surface. Then throw away the wiping cloths and paper towels in the trash.
3. Prepare Environment before Sanding
Right before the sanding process, empty the room by moving all furniture and decorations, including draperies. Then, open all the windows and tape plastic drop cloths over doorways to maintain sawdust from entering into the other rooms.
Read also: 10 Best Sanders for Furniture Refinishing
4. Sand Off Paint Process
It is better to use coarse 60-grit sandpaper to start the sanding with the orbital sander that moving over a large area at a time. Then, vacuum the sanding area with the shop vac to see the first result of the sanding process.
The next step is to continue sanding with medium sandpaper, range from 80 to 100 grit. Continue to vacuum and sanding afterward till getting the better result of removing the paint. For metal surface, you can jump to this second process, start with 80 grit of sanding.
The final sanding stage to leave the surface ready to refinish is by smooth the surface with fine-grit sandpaper, range from 150 to 200 grit. For metal surfaces, you can add finishing steps rubbing steel wool in circles over the metal to give a smooth finish.
5. Inspection, Sealing and Finishing
After the sanding process, check out the surface if there any cracks, damage, or open grain areas that need to be filled with wood putty before the next proceeding. Then apply a pre-stain wood conditioner to help even out the color, eliminate the blotchy appearance on softwoods or help to prime the surface before the next painting project.
Use the orbital sanders to remove the paint is not the only way. But, the portable size of orbital sanders is the appropriate tool to remove paint from flat or curved surfaces. Just be positive that your work and time will be rewarded, no matter how you prefer to finish the project.