Step-by-step paint preparation guide
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Difficulty:
Close DifficultyBeginner Do-It-Yourselfer - EasyIntermediate Do-It-Yourselfer - ModerateExperienced Do-It-Yourselfer - DifficultProfessional - Expert
- Completion Time : 2 Days
It is amazing how a process that appears to be so simple could involve so many preparation steps. Indeed the mark of a beautifully painted wall is one that largely goes unnoticed. Many paint professionals claim that they often spend from two to four days to carefully prepare, prime, and paint a single room. It is therefore very important to follow each recommendation so that the end product meets great expectations. Don’t worry though, approximately 80% of the work for painting a room is wrapped up in the preparation. Once the cleaning, sanding, and priming phases are complete, the fun part is easy.
Tools and materials required
TOOLS
- Cordless drill
- Paint roller
- Telescoping extension pole
- Hammer and nail set
- Caulking gun
- Wire brush
- 3-in-1 putty tool
- Utility knife
- Drywall sander that attaches to a shop vacuum
- Wet/dry vacuum with broom attachment
- Razor blades
- Bucket
- Screwdriver
- Rubber gloves
- 4' step ladder
- Eye protection
MATERIALS
- 1 1/2" masking tape
- Painters tape
- Silicon-carbide sandpaper
- Lightweight spackling compound
- 120-grit sandpaper
- 220-grit sandpaper
- Tack cloth
- Bleach
- TSP
- Denatured alcohol (acetone)
- Wood stir sticks
- Sanding blocks – both hard and soft
- Paint pans with paint pan liners
- Synthetic-bristle brushes – 2 1/2" blunt, 1 1/2" angled sash, “ foam throwaways “ for touch-ups
- Dust mask
- Paint drop cloths
- Caulking compound specific to the materials and job
Before Assembly
If the home has paint that contains lead and/or mercury, do not sand, scrape, nor heat-gun the paint. Contact a local hazardous waste office for specific guidance when dealing with older paint. Be cautious in particular of paint that was applied before or around 1978.
When sanding, check the sandpaper frequently for wear.
Always use a dust mask when sanding.
If using a primer, select a product that is designed for the particular project material and location.
An oil-based or all-purpose acrylic primer works well for walls and ceilings.
Previously painted surfaces will not typically need a primer unless the color is extremely vibrant such as a bold red.
Sand primed surfaces with a 220-grit sand paper after allowing the coat to dry for 24 hours. Clean up the dust thoroughly with the shop vacuum and tack cloths.
It will be important to always coat a spackled area with primer before the final coat of paint. Spackling will alter the appearance of the paint leaving that “spot” forever noticeable.
When filling nail holes in drywall, push the spackling compound into the hole. Smooth the compound. Allow it to dry and sand over it before applying primer.
Use a utility knife to shave slivers off the end of a caulking tube’s spout until a small hole emerges. This will help make sure that only a very small, controlled amount of caulking is applied at a time.
There are several different types of caulking compound. Make sure to purchase paintable caulk if it will need to be painted.
Consider the use of a telescoping paint roller wand for priming both the ceiling and wall surfaces.
When priming a ceiling, always wear eye and hair protection as primer paint spatters as it rolls onto the surface.
Paint the primer onto a flat surface in 3 sq. ft. sections at a time.
Invest in heavy duty drop clothes because paint can soak quickly through thin cloth such as old bed sheets.
When washing the walls down after sanding, also wash down the floors to avoid dust from kicking up into the space.
Ventilate the area well during the preparation and priming phases of the project.
If a wall surface is badly damaged enough, it might make sense to replace the drywall or to at least add a fresh 1/4" layer over top the existing layer.
Steps
1.1. Clear the space of any furniture that might be in the way for the project. Sometimes gathering the furniture into the center of the room and clothing it with a drop cloth is all that is sufficient.
1.2. If drywall will be dusted, it is recommended to remove every piece of furniture regardless of whether it will be covered.
1.3. Remove items attached to the surfaces that will be painted. In particular, remove outlet covers, light switch covers, window coverings and attachments, and any other item that could be damaged by a spats of paint. In some cases, it will make sense to remove doors as well.
1.4. Scrutinize over the surfaces to be painted to remove any extraneous nails or screws that may have been left.
1.5. Push spackling compound into indentations and holes within the surfaces. Once the spackling is dried, sand over until smooth. These areas will need primer.
1.6. Caulk the gaps between primed woodwork and the walls. Apply only as much caulk as is needed. Smooth the caulk with a wet finger afterwards.
1.7. Set out protective paint drop cloths in appropriate areas in the room to protect against paint spills.
1.8. Use masking tape or painters tape to protect areas such as the wood trim or window trim if needed.
2.1. Apply drywall mudding compound if the wall is not already prepared properly to make sure the joints and any other indentations are finished. Drywall finishing includes sufficient sanding.
2.2. Apply a skim coat over markings on the wall done with permanent markers if left on the drywall. Pencil markings will be covered by the primer.
2.3. Clean grease stains with a solution of trisodium phosphate (TSP cleaner) and gently scrub with a rag.
2.4. Sand gently over spackling and drywall mud first with a 120-grit paper and then with a 220-grit paper to ensure the surface is as smooth as possible.
2.5. Clear away any dust and debris with a shop vacuum.
2.6. Wipe over the surfaces gently with a mixture of water and mild soap such as hand dishwashing liquid detergent.
2.7. Wait for the surface to be completely dry and clean before applying the primer.
2.8. Attach the wood trim after the drywall is primed. If painted a new wall and attaching new trim, prime and paint the trim first before the final installation.
2.9. Apply a bead of paintable caulk between any wood trim and wall surface before painting.
3.1. First determine the type of paint existing on the surface whether it is latex or oil-based. The type of primer used will be determined by what kind of paint it covers.
3.2. If after conducting a test by rubbing a cotton swab of acetone (oil-based paints will remain unchanged by acetone) onto the paint leaves the homeowner in doubt, completely sand the surface of all walls and coat with a heavy-duty primer.
3.3. Clean stubborn stains with TSP. Cleanse the area with clean water.
3.4. If the wall has mold on the surface, use a mixture of three-part bleach to one-part water to remove the mold stains.
3.5. For smoke-stained walls, use a 50/50 solution of water and bleach.
3.6. Scrutinize over the wall to remove any extraneous nails or screws that may have been left.
3.7. Push spackling compound into indentations and holes within the surfaces. Once the spackling is dried, sand over until smooth. These areas will need primer.
3.8. Sand over the surfaces with a 220-grit paper.
3.9. Clean the dust and debris with a shop vacuum.
3.10. Wash over the surfaces gently with water and a mild soap such as hand dishwashing liquid detergent.
3.11. Apply a bead of paintable caulk between any wood trim and wall surface before painting.
3.12. Wait for the surface to be completely dry and clean before applying the primer.
4.1. Utiliser de l’eau savonneuse (ou du détergent à vaisselle) pour nettoyer la surface du bois.
4.2. Utiliser du papier abrasif au carbure de silicium de grain 120 pour poncer l’ancienne couche de peinture ou la surface nue du bois.
4.3. Appliquer du bouche-pores pour bois au besoin.
4.4. Si des trous de clous sont présents, les boucher à l’aide d’un bouche-pores pour bois à base d’eau, laisser sécher puis poncer.
4.5. S’assurer que toutes les zones recouvertes de bouche-pores pour bois sont bien poncées et bien lisses.
4.6. Pour les moulures profilées, l’utilisation de deux blocs de ponçage – doux et dur – s’avère parfois nécessaire.
4.7. Nettoyer la poussière et les débris dus au ponçage avec une brosse ou un aspirateur d’atelier.
4.8. Essuyer la surface à l’aide d’un chiffon à dépoussiérer.
4.9. S’il existe des espaces vides entre les surfaces de différents matériaux ou aux joints, utiliser un pistolet à calfeutrer pour appliquer le type de mastic approprié. Lisser ensuite le mastic appliqué avec un doigt humide.
5.1. Fill any holes and cracks with concrete. Make sure the patches are smooth.
5.2. Allow the patches to dry completely before proceeding to cleaning.
5.3. Use a TSP cleaner over the entire wall surface with a rag.
5.4. Allow the wall surface to completely dry before the next step.
5.5. Apply a latex primer designed for concrete.
7.1. Wash the surface entirely with a scrub brush, water and hand dishwashing liquid detergent soapy water mixture.
7.2. Moisten the rag with wax-and-grease remover and rub over the paneling until the entire surface is clean.
7.3. Thoroughly scratch up the surface with a wet sanding product or wet sanding technique. The fibreglass panels need to be sanded until the sheen has turned dull.
7.4. Wash the surface again with water and mild liquid detergent soap.
7.5. Allow the fibreglass to dry before applying the primer with a brush.
7.6. Allow the primer to dry for 24 hours.
7.1. Nettoyer toute la surface avec une brosse ainsi qu’un mélange d’eau et de savon doux, par exemple du détergent à vaisselle.
7.2. Imbiber un chiffon de produit désinfectant et dégraissant et frotter la surface jusqu’à ce qu’elle soit propre.
7.3. Bien décaper la surface à l’aide d’un produit ou d’une technique de ponçage humide. Les panneaux de fibre de verre doivent être poncés jusqu’à ce que le lustre soit terni.
7.4. Nettoyer la surface de nouveau avec un mélange d’eau et de savon doux, par exemple du détergent à vaisselle.
7.5. Laisser les panneaux de fibre de verre sécher avant d’appliquer l’apprêt à l’aide d’une brosse.
7.6. Laisser l’apprêt sécher pendant 24 heures.
RONA Leamington
274 Talbot St. West,
Leamington,
Ontario, N8H 4H3
Phone : (519) 322-4908
Monday - Sunday: 8:30 AM - 7:00 PM (Eastern Time)
All prices listed in Canadian dollars