Leo Martínez
A bad interior paint job can be disappointing, especially if you've spent a lot of money on it. It's important to be able to spot the signs of a poor paint job so that you can bring up any concerns and find ways to fix it. There are several ways to identify if interior paint is bad, including visible flaws such as drips, peeling or flaking paint, bubbles, and uneven edges. Paint that hasn't been stored properly may also result in textured-looking walls. You may also notice issues with the paint colour, such as unevenness, lines, streaks, and splotches, which can be caused by not preparing the surface properly, not mixing the paint well, or using the wrong type of paint or primer. Bad paint can also have an unpleasant smell, and may not adhere to the wall as well as fresh paint.
| Characteristics | Values |
|---|---|
| Paint smell | Rancid, sour, mold or mildew |
| Paint consistency | Jelly-like, solidified chunks, curdled like cottage cheese, overly thick like pudding |
| Paint type | Water-based latex paint, chalk paint, limewash paint |
| Paint application | Wrinkling, cracking, smudges, blisters, blemishes, roller marks, brush marks, streaks, drips, peeling, flaking, bubbles, uneven edges |
| Paint colour | Uneven colour, lines, streaks, splotches, patchy-looking paint |
| Paint preparation | Insufficient prep work, lack of primer, dirty or wet walls, thinning paint |
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Paint smell
It is also important to note that the smell of paint can indicate the presence of harmful chemicals, such as Volatile Organic Compounds (VOCs). VOCs are carbon-based chemicals that evaporate at room temperature and can cause adverse health effects. The "new paint" smell is caused by the evaporation of the liquid ingredients in the paint, including any harmful chemicals. While water-based paints emit fewer chemicals than oil-based paints, it is recommended to choose no-VOC or low-VOC paints to reduce indoor air pollution and potential health risks.
Additionally, the smell of paint can be a cause for concern during and after painting. It is recommended to ventilate a room for at least 72 hours after painting, even if the smell of paint fumes has dissipated, as some toxic VOCs may be odourless. The use of an air purifier can help reduce VOC levels and protect against potential health risks.
If you notice an unusual or strong odour from paint, it is important to take action. You can try the "sniff test" to determine if the paint is giving off a foul smell. If the paint is in a container, it may have gone bad and acquired mould. In such cases, it is best to dispose of the paint properly and not pour it down the drain as it can contaminate waterways.
If you are experiencing issues with paint smell after painting, it is recommended to contact the manufacturer and insist on a representative visiting to assess the issue. It is important to have them sign off on their conclusions and get their full names for reference.
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Paint texture
One common issue with interior paint texture is the appearance of lumps and bumps on the painted surface. This can occur when the paint hasn't been stored properly, resulting in a sticky or chunky consistency. Improper storage can cause the paint to dry out, making it challenging to apply smoothly. Additionally, if the wall hasn't been cleaned adequately before painting, grime or debris can get trapped under the paint, contributing to the uneven texture.
Another factor that can affect paint texture is the application process itself. Using worn-out rollers or applying too much or too little paint on the roller can leave visible roller marks and streaks on the walls. Skipping the necessary prep work, such as sanding and scraping the surface, can also lead to an uneven paint texture.
In some cases, you may notice a textured appearance resembling an orange peel. This texture can be a result of improper paint storage, incorrect application, or using the wrong tools. Applying paint too thickly or before the previous coat has fully dried can also contribute to this undesirable texture.
Chalking is another issue that can affect the texture of freshly painted interior walls. If you notice a white and powdery residue on your hands after touching the wall, it indicates that the walls may not have been cleaned properly or that the paint was excessively thinned.
To avoid issues with paint texture, it is crucial to ensure proper storage of paint, thorough preparation of the surfaces, and careful application by following the recommended processes for the specific type of paint being used.
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Paint consistency
When paint is fresh out of the can, it typically has a smooth and silky consistency. However, over time, paint can begin to separate, forming two distinct layers of liquid. While this separation is natural and does not necessarily indicate that the paint is bad, it is important to properly mix the paint before use to ensure a uniform consistency.
One way to improve the consistency of paint is by adding substances such as water or paint thinner. For instance, water can be added to latex and water-based paints to thin them out, while paint thinner can be added to oil-based paints. However, it is important to note that adding too much water or thinner can result in an uneven finish, as it can cause the paint to become too thin and reduce its protective qualities.
Additionally, paint can thicken over time, especially if it is not stored properly. Thickened paint can result in a textured or orange peel-like finish on walls, which is often considered undesirable. In some cases, thickened paint can be revived by adding a small amount of water or paint thinner. However, if the paint has become too thick or lumpy, it may be best to dispose of it and purchase a new can.
The consistency of paint can also be affected by the presence of bacteria. As bacteria grow within the paint, they can eat away at the binding agents, causing the paint to become lumpy and curdled. This can result in a low-quality finish and even pose health risks, as the degraded paint may release harmful chemicals during application. Therefore, it is essential to inspect paint for signs of bacterial growth, such as a sour smell or a bulging can, and dispose of any paint that is suspected to be expired.
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Paint application
A good paint job requires careful attention to the surfaces being painted, the tools used, and the paint itself. Before painting, the crew should fix drywall damage, spackle over hairline cracks, fill in nail holes, and clean the walls. They should also sand out uneven surfaces and old high-gloss paint so that the new coats stick.
Once the prep work is done, the paint crew should apply the paint with care and precision. They should use the right amount of paint on the roller to avoid streaky edges and roller marks. Professional painters should always apply at least two coats of paint to eliminate roller and brush marks and ensure sufficient coverage.
After the paint has dried, you should inspect the walls for any visible flaws. Check the corners and edges for crisp, clean lines and a smooth texture. If there are visible brush strokes, roller marks, or paint streaks, the paint wasn't applied evenly. Paint "bleeding" can occur near cracks, resulting in a bubbling effect or mismatched texture. Drips, peeling or flaking paint, and bubbles are also signs of a poor paint job.
If you notice any of these issues, be sure to contact the paint company and request that they fix the problems. It's important to act quickly to protect your investment and ensure that your home looks its best.
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Paint finish
A good paint finish starts with a thorough preparation of the surface to be painted. Before any paint is applied, the paint crew should fix drywall damage, spackle over hairline cracks or nail holes, clean the walls, and sand out uneven surfaces.
A quality paint job requires careful attention to the surfaces being painted, the tools used, and the paint itself. If your paint job ends up with an orange peel texture, it’s time to find a different paint crew. Drips, peeling or flaking paint, bubbles, uneven edges, and other visible flaws should never happen with a professional painter.
A well-done interior paint job is expected to look neat, uniform, and smooth. Signs of a bad interior paint job include chalking, blistering, cracking, bubbling, and alligatoring of the paint surface. These defects may mean the painter waited too little between coats. While it’s safe to recoat latex paint after 4–6 hours, an oil-based paint will need to dry for a full 24 hours.
Uneven colour occurs when paint has been incorrectly applied or the wrong process has been used. Telltale signs to look for include lines, streaks, splotches, or patchy-looking paint. This can be the result of not preparing the surface properly, not mixing the paint well, using the wrong type of paint or primer, or not applying enough coats.
If you see stains or discolouration bleeding through, an uneven texture or sheen, or visible patches under the paint, it could be that the painter botched the primer coat or didn’t apply one. Primer corrects minor surface flaws so the paint goes on smoothly, dries with an even finish and vibrant colour, and lasts years longer than it would otherwise.
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Frequently asked questions
Unopened interior paint can go bad if it is not stored properly in a cool, dry place. Paint that has gone bad will have a sharp, rancid, sour smell, or smell like mould or mildew. The paint may also look curdled like cottage cheese or overly thick like a pudding.
A bad interior paint job will have visible flaws such as drips, peeling or flaking paint, bubbles, and uneven edges. You may also see brush marks and roller marks, or notice that the paint is streaky, patchy, or uneven in colour.
Bad interior paint could release more hazardous fumes and VOCs. Paint that hasn't been stored properly may also result in textured-looking walls.
