To use a sanding block, wrap the sandpaper around one side of the block and grip it with your hand from the other side. Sanders can differ in how you load them with the sandpaper, but generally they have a slot that you can load the sandpaper into before turning it on. If you haven’t used a sander before, a sanding block is a safer option. A coarser grit on the sandpaper is acceptable because you’re aiming to strip the unwanted paint. Use 80-grit sandpaper if you’re looking to remove globs of paint. Sanding a wall will cause a risk of inhaling toxic dust, so wear a mask before beginning.
Sand the unwanted paint until the entirety of the paint becomes dull. [3] X Research source Then, wipe away the dust.
Place the paint scraper’s blade at the bottom of the unwanted paint, apply pressure to the blade, and slide it under the unwanted paint, peeling the paint off. [4] X Research source The sanding process will have weakened the paint, making it easier to strip.
Open several windows. Keeping the room you’re in well ventilated is key as paint strippers can build up toxic fumes if there’s a lack of fresh air.
To keep your floor safe you’ll need to buy several materials from your nearest DIY store. You will need one large sheet of plastic and another large sheet of either kraft or rosin paper. Lay a sheet of plastic from the base of the wall across the floor. Then, layer a sheet of kraft or rosin paper on top of it. If any of the paint stripper lands on the floor, this layer will protect your floor from damage.
If you’re working on a vertical surface, use a paint stripper that is closer to a paste in texture so that it won’t drip onto you.
To use a paint scraper, place the blade at the bottom of the paint you wish to remove, apply pressure so the blade slides under the paint, then peel the paint off as you slide the paint scraper upwards. If there are any awkward spots, try using toothpicks or toothbrushes you don’t plan on using again to scrape off the paint. If there is an underlying layer of paint that is still solid, you will need to apply another layer of chemical paint stripper to remove that layer separately.
For example, a neutralizer may ask you to mix 1 gallon (3. 8 L) with 4 fluid ounces (120 mL) of neutralizer. Then, use this mixture with a cloth to wash the wall. Check your stripper instructions and apply however directed.
You will also need a paint scraper for this method.
With a pair of scissors, cut out a cardboard ring slightly larger than your target area. Then, wrap the cardboard ring in aluminum foil. Place the shield over the spot and continue the process.
To start with, heat a 3 feet (0. 91 m) section on the wall. [14] X Research source You’ll know you’re ready for the next step when the paint visibly begins to loosen its hold on the surface beneath it. If you are using a heat shield, focus the nozzle on the single area for a shorter amount of time until you visibly see the paint begin to loosen.
