How to Prep Walls for Painting by Painters in Markham?

Posted by Mas Construction on January 5th, 2021

To make painting easy, it is important to first prep the walls of a room for painting which is easy to do in painting.

If you want to get a perfectly painted wall, we must not neglect the preparation work which is vital (both in terms of cleaning walls and filling in holes and cracks). 

Also, important are the laying of the plaster and the application of the bonding primer.

Get to know all about the How to Prep Walls for Painting in this article.

In This Article

• Painting Materials and tools
• Prepare the room for Painting
• How to clean walls
• Repair Walls
• Apply the undercoat

Painting Materials and tools

Painting materials:

• Smoothing coating kit
• Undercoat
• Automatic lever terminal
• White spirit

Painting tools:

• Cutter
• Corded telescopic sander

Prepare the room for Painting

Cover up furniture and floor

First of all, empty the room of its furniture or group them in the center and cover them with a trap. Put down protection on the ground (tarpaulins, plastic, cardboard, or newspaper).

Swaddle the appliques and anything that cannot be taken apart with plastic bags held by an adhesive tape, so the painting painters in Markham will not create any stain on other home furniture.

The walls

• Pick up paintings, photos, and other decorative items from the wall.
• Also, remove window curtains and rods, and other ties.
• Protect baseboards, ceiling angles, window towers, and door frames with masking tape.
• As for the anchors that you will reuse after painting on a wall, put screws in them so that the paint does not accumulate inside. You will only have to remove them once the job is done.

Wall sockets

• Turn off the electricity to be sure you don't cause a short circuit.
• Place the different sockets in your room, then protect the wires: insert them into dominoes that you will wrap in plastic.
• Once this is done, consider your safety. Protect yourself from dust and put on gloves, put on protective goggles, and wear a mask.

How to clean walls

Cleaning the wall is important before Painting wall for an efficient amount of work.

• Cleaning walls your wall thoroughly with a degreasing detergent and a sponge starting with the ceiling and working your way down to the baseboards.
• Rinse with clean water and let dry.

If the wall has areas of mold

• Cleaning walls with bleach or fungicide.
• Then wash and rinse the wall again.

If you have peeled off some wallpaper and there are small bits or traces of glue

• Moisten them and remove them with a scraper.
• Let the wall dry.

Repair Wall

Remove nails and screws

Once your wall is perfectly clean, remove the screws and use a pair of pliers to remove the nails. For the dowels, take a screw, screw it partly into the dowel, and with a pair of pliers, pull on it.

Filling of holes and cracks

Start by making the holes and cracks reasonable, with a triangular scraper, knocking out any loose parts. For the plaster to adhere properly, dampen the area to be filled with a sponge.

Apply a filler to cracks or holes with a plaster knife. Smooth the plaster to avoid any extra thickness and then let it dry. 

Once it is completely dry, sand the patched area with medium-grit sandpaper. Once the main roughness and the main defects have been eliminated, the micro-holes must be filled.

Installation of a smoothing plaster

• If you intend to apply acrylic paint, apply a water-based smoothing filler, for glycerophthalic paint, you will need a greasy filler.
• Apply the smoothing plaster to the wall with a plaster knife, spreading it horizontally and always in the same direction, from right to left for example. Wait until it is perfectly dry, that is to say very white and without any gray area.
• Sand the wall with a fine-grit sandpaper.
• Dust it completely with a damp sponge. Then apply a 2nd coat.

To coat an entire room, it is recommended to start at the bottom of the walls.

• The first pass should be spread horizontally throughout the room.
• Then, always starting from the bottom, apply the second layer of plaster vertically.
• Sand your entire wall with a fine grain abrasive (120) to make it very smooth.
• Dust and vacuum, the wall, and the room completely.

Apply the undercoat

GOOD TO KNOW

• Grind the support with a very fine abrasive sheet to mattify the old paint. If the old glycerol paint is very "hard" and shiny you can sand it with a sander with a self-rotating head and a grit abrasive to break the shine and make it matt.
• Dust the support: you can vacuum the support with a vacuum cleaner or pass a slightly damp sponge on the surface.
• The old glycerol paint is now matt and dusted, however, it is strongly recommended applying an impression (primer) to limit the risks that your finishing paint does not stick to the support and does not come off. The preparation of the support is the secret of the quality of its finish.
• Lightly grind the support with a very fine abrasive sheet to remove any grains on the surface. You can now apply your acrylic finishing paint!

In the corners

Once the wall is well-prepared, apply a primer.

• Start by painting all the corners and edges of the room (ceilings, baseboards, doors, and windows) with a chair brush.
• Pull the paint well, spread it well, so as not to leave any extra thickness.

Roller painting

Start painting on the large areas of the wall with a roller, to spread the underlay more quickly.

Work in areas of about one square meter, in two crossed passes.

Go first in one direction, vertically, for example, then a second time in the horizontal direction.

Always start at the top of the wall, gradually working your way down to the floor.

Once you have covered several areas, smooth them out with wide movements of your roller without adding any primer on them, to blur the different traces of passages.

If you need any kind of home painting services in Markham, You can directly get consulted by painters in Markham. Just visit www.mascons.ca or call us at +1 647-835-0590