Nothing is as depressing as going into a room that you carefully painted a few years ago, and finding the corners pulling up, bubbles appearing, or snow-like flakes falling down. Not only is the peeling of wall paint an ugly eyesore that will destroy your interior decoration, but it is also a structural cry for help from your walls. Whether it is the paint flaking off the living room architraves, or a paint peeling ceiling in the bathroom, the problem is not usually self-correcting. Actually, when not treated, it tends to spread, making a minor patch job a large-scale renovation.
At Painting by MOLI, we believe in fixing the problem—not just painting over it. As experienced interior professional painters in Brisbane. One of the most frequent complaints that we hear in Brisbane is paint adhesion problems in the unique climate of Brisbane. In this ultimate guide, we will take you through the process of how to repair peeling paint, the exact painting skills and best practices that are required to repair the peeling paint, and the way of preventing how peeling paint will ever spoil your weekend again.
The Genesis of the Issue: Why Does My Paint Peel?
You have to be a detective before you go out to the hardware store to get a scraper. You can also suffer failure by not establishing the causes of peeling paint, and your new paint will soon flake off just like the other paint. Paint is a chemical film that is used to bond to a substrate. The adhesion of paint does not take place when such a bond is broken.
So, why does this happen?
1. Humidity and Paint
The climate of Brisbane is subtropical and is an infamous paint killer. The presence of high humidity in the application process may entrap microscopic particles of water under the paint film. With time, this moisture which is trapped in your home will eventually become a gas, and as it swells, it will push the paint off the wall. This is one of the typical reasons for paint bubbling and subsequent lifting.
2. Peeling of Paint as a Result of Moisture
This is unlike ambient humidity. This is water that is liquid, getting behind or lying on the paint film.
- Leaks: A minor leak in the roof or a burst pipe in the wall cavity may soak the plasterboard at the back.
- Condensation: Bathrooms are often poorly ventilated; thus, the moisture caused by the peeling of the paint is not taken away, and surface water dissolves the binder in the paint.
- Rising Damp: When moisture is drawn up out of the ground into the brickwork, it may force the paint off from the inside out.
3. Improper Paint Surface Prep
This is the most aggravating reason since it is totally avoidable. Problems with adhesion of paint are usually caused by painting on dirty, glossy, or chalky surfaces. When the previous painter coats a wall that has dust, grease, or old gloss on it without sanding, there is nothing to which the new paint can cling. It simply lies like a sticker on a dirty table waiting to fall.
4. Incompatible Paint Layers
Painting over old oil-based enamel without a special primer is a recipe for disaster when acrylic (water-based) paint is applied over it. In interior commercial painting, this issue is especially common in older offices, retail spaces, and buildings where oil-based enamels were traditionally used. Water-based paints will not bond to oily surfaces and will flake off in large sheets, making the finish look like a snake shedding its skin.
Safety First: The Lead Paint Warning
Among the initial facts about the manner of preventing the peeling of the painting on the walls, one should remember that safety is the first consideration. You should first of all find out the age of the paint before you begin scraping.
In case your house was constructed or painted prior to 1970 (or even as late as 1979 in certain instances), then you have a high probability that the old layers have lead. Lead paint is not a problem until you start scraping or sanding the paint and toxic dust is emitted, harming children, pets, and pregnant women.
MOLI Rule: In case you think there is lead, do not sand it. A lead test kit can be bought cheaply in most hardware stores. When the test is positive, then the peeling of the paint is a hazardous materials job. We highly recommend in this instance that you employ the services of a professional repainting house interior Brisbane company such as MOLI that will safely do the abatement.
Guide: Repairs to Peeling Paint
Then you have seen the cause and got your tools. Now, let’s get to work. This is the professional workflow of how to repair peeling paint to make it permanent.
Step 1: Protect the Area
Drop cloths should be placed on the floor and furniture covered. Repairing of peeling paints is a dirty task that causes a lot of dust and debris. Apply painter’s tape to the sides of skirting boards and light fittings to get a clean edge.
Step 2: Remove the Loose Paint
This is the elbow grease stage. With your wire brush or paint scraper, strike the peeling part.
- Remove all flaking, bubbling, or loose paint.
- Very Important Hint: Never give up scraping until you get to a solid edge—that is, a place where the paint is tight against the wall and can never be scraped off with the scraper. Any slight loose edge will bring back the paint cracking.
Step 3: Feather the Edges
And this is why a DIY and a pro finish are different. You will then have a crater or a jagged step between the bare wall and the layers of old paint that remain. When you paint over it now, the mend will be seen.
- Sand edges of the leftover paint with 120-grit sandpaper.
- Sand until the gaps between the bare wall and the paint become smooth to the touch. This method is referred to as feathering.
Step 4: Repair the Surface
In case, during your scraping, you found that the plasterboard was damaged or that the peeling wall paint carried away some plaster along with it, you must patch it.
- Apply a high-quality patching compound or spackle with a putty knife.
- Make sure to dry it completely, and then polish it with smooth sandpaper.
Step 5: Clean the Surface
The gluing process of the paint is totally based on a flat surface. Your sanding dust will be used as a shield that will lead to the failure of the new paint.
- Clean the surface with a wet sponge and a mixture of sugar soap; wipe to take off dust, grease, and oils.
- Rinse with a clean, damp cloth.
- Wait for it to dry. We cannot stress this enough. One of the major causes of paint bubbling is painting on a wet wall.
Step 6: Prime (The Glue)
Do not skip this step. You are to spot-prime the bare areas.
- Apply a special bonding primer or paint sealant. This product permeates the porous substrate and forms a sticky surface for the topcoat.
- When peeling of paint is brought about by moisture or stains, apply a stain-blocking primer to avoid the bleeding of old water marks.
Step 7: Repaint
After the dryness of the primer, put on your topcoat. In order to achieve the most natural mix, we usually suggest that the entire wall be painted, not just the patch, to prevent “flashing” (the new paint appearing to be glossier than the old paint).
Preventing Bathroom Peeling Paint
The war zone of paint is the bathrooms. They are the first victim of the problem of moisture peeling of paint. Steam is formed, condensed on the ceiling, and gradually breaks the bond between the paint and the plaster.
When it comes to a peeling ceiling in the bathroom, the usual rules would be observed with an added precaution.
- Check Ventilation: You can study how to prevent peeling of paint, however, without repairing the ventilation, it will repeat. Make sure that your exhaust fan is clean and efficient according to the size of the room.
- Scrape Aggressively: Peeling in the bathroom paint can be in huge and sticky layers. You will have to peel the whole ceiling clean up to the plaster.
- Oil-Based Sealer: In the case of bathrooms, we tend to apply a special kind of oil-based pigmented sealer (binder) and not a regular water-based primer. This fixes whatever chalky remains and forms a waterproof layer.
- Mould Resistant Paint: It is always important to end with a high-quality Kitchen and Bathroom paint that has mould inhibitors.
Concluding Remarks
The house is probably your largest investment in life, and therefore the frustration of having cracking/flaking wall paint should not make it worth less. Although the ability to prevent peeling of paint is an important skill, it takes time, appropriate chemicals, and a lot of elbow grease. The trick is in the tedious one: the cleaning, the scraping, the priming.
By these steps, you will be able to make your repair last. But in any case where the peeling is so great, or where you think there is any lead about, it is frequently safer and cheaper to bring in the cavalry.
We are the team that can assist you with your next project. If you want the best results and do not want to go to the trouble of sanding and scraping, call Painting by MOLI. Our interior house painting services are available throughout Brisbane, and we offer long-lasting and quality finishes that are guaranteed to adhere. We do the hard part to get you the pretty pay.
