INTERIOR SANDING SERVICES
While sanding is not required for every paint project, rough spots on walls, whether they have been previously painted or not, need to be sanded before they are painted to ensure the paint goes on smoothly. Use sandpaper or a sanding block to dull any uneven surfaces, wipe away dust with a damp cloth and let dry thoroughly.
Smoothing walls before painting is necessary for surfaces previously painted with a gloss or high-gloss paint. For previously painted water-based paint, sand with a fine-grit sandpaper. For oil-based paint, a medium-grit sandpaper (100- to 150-grit) should be used. Again, wipe away any debris and allow to dry completely.
Cracking or flaking paint on previously painted surfaces can also be an issue. Paint cracking on walls and ceilings happens due to a variety of causes, one of the most common being poor preparation of a surface prior to painting. Painting over cracked paint is a bad idea; it is important to remove any flakes from the surface via sanding or scraping before repainting.
EXTERIOR SANDING SERVICES
Scrape all painted surfaces to remove loose or flaking paint. Apply enough pressure to peel off loose paint, but not so much that you gouge the surface. Use a wide scraper for siding and soffit and a smaller blade for trim, windows and doors.
Sand all surfaces with coarse sandpaper to smooth and gradually reduce the difference between paint and any adjacent wood exposed during the scraping. Use an orbital sander for large areas, if desired. A sanding block is better for trim and tight spaces. Ensure you sand any paint that didn’t need scraping to roughen the surface for better adhesion.
Repeat the sanding with medium- and fine-grit sandpaper on areas where scraping created rough edges. Sand until all of the areas to receive paint are smooth. Ensure there are no rough edges where paint has been scraped
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