How to prepare your wall for painting

How to prepare your wall for painting


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  • Its important to put a drop sheet down just in case you spill anything or you just don’t want to damage the floor.
  • To minimise sanding and obtain a perfect finish, tool/spread to a ‘feather’ edge when applying filler.
  • For a neat clean finish, before applying your gap filler, tape both sides of the gap before applying the product.
  • Before applying No More Gaps Fast Dry, extrude a small amount onto a piece of scrap material to ensure a smooth continuous flow of gap filler, and a perfect finish.

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Improve the finish of your painting project by preparing well before you begin.

You’ll need:

1. Lay down your drop cloth in the area you’ll be working, then use the sandpaper and sanding block to remove any uneven surfaces and crumbling paint flakes. Remove any nails or pins from the wall with your hammer.
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2. Dilute some Sugar Soap with water (follow the instructions on the bottle) and use a cloth to remove any dirt or dust from the wall. Allow surfaces to completely dry before continuing.
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3. You’ll need to fill any cracks, scratches, dents, or nail or screw holes before continuing. Apply a small amount of Selleys No More Cracks to your filling blade and draw it across each imperfection. Skim the filled areas lightly in both directions a few times to ensure there are no air bubbles, then remove any excess by drawing down the surface firmly with your filling blade.
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4. Allow the first application to dry, then sand down lightly. Remove any dust with a soft dry brush.
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5. Apply a second coat of Selleys No More Cracks if shallow dents and small holes are still not perfectly smooth.

6. Next you’ll need to fill the gaps between any skirting boards or architraves and the wall. Use a dry clean cloth to make sure the surface you’re working is dry and free of any dust, grease, flaking or powdery paint. An old clean paint brush is also good for this

7. Cut the tip of the cartridge, then cut the nozzle at a 45 degree angle. Attach the cartridge to the caulking gun and the nozzle to the cartridge.
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8. Tilting the gun at a 45 degree angle, dispense the product into the gap making sure sufficient gap filler is forced into the gap.
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9. Use a wet finger to smooth over your work, and clean up any excess product with a damp cloth.
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10. Allow 20 minutes if you plan to paint the surface using a water-based paint, or 2 hours if you’re using ceiling or oil­based paints.

11. Finally, use sandpaper or an orbital sander to smooth over each filled section of the wall so that it’s even with the surrounding surface. Hand sanding using a sanding block or sanding float is preferred as orbital sanders can leave marks which become noticeable after painting. After that simply brush your surfaces thoroughly with a soft brush or broom and wipe down with a cloth to remove any dust.
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