Paint defects and problems
Good quality paints rarely cause problems. Final appearance imperfections are usually caused by poor substrate preparation or careless painting. Here are some common faults and how to deal with them.
Streaks
They appear on vertical surfaces and si) the result of applying too much paint with an insufficiently pressed brush, with a roller or a float, when they are dry, we remove with a scraper with a wide blade. Then we grind the surface by hand or using a grinding attachment for a drill, to get rid of stains thoroughly, and the surface becomes smooth to the touch. Unfortunately, Streaks can be very resistant and sometimes require a lot of work, before the surface is ready to be repainted
Peeling
When the paint does not bind to the substrate, begins to come off and fall off in patches. It can happen, when the wet painted surface is too smooth, there are residues of glue paint on it. It is best to remove any flaky paint, and then provide the next coat with adhesion and only then paint again.
Blisters
When water or air is trapped beneath the paint surface, blisters form. This problem applies to, for example, wet or similar wood, which exudes resin under the influence of temperature. The only way is to remove the paint and dry the substrate and then paint it.
Stains
They pierce when we paint a dirty surface with emulsion paint. The solution is to let the emulsion dry completely and cover the stains with a special stain-neutralizing paint, which covers them. After such paint has dried, you can paint the surface again.
Creases
Oil enamel puckering appears, once the second coat of paint has been applied, before the solvent has completely evaporated from the first layer. It seeps through the outer layer, causing wrinkling. It also happens, when the top layer is applied too thick. The best solution is to remove the paint and repaint. However, the paint should not be applied with too thick a layer, and the first layer must be dry, before we put another one on.
Matting
Spawns on wood in places, where no primer is used. The paint layers just soak into the wood, which makes it impossible to achieve a shiny effect. Unfortunately, applying subsequent layers very seldom solves the problem. The only really effective way is to completely remove the paint and carefully prime the substrate before repainting.
Roughness
Takes place, when dirt gets on the brush and is transferred to the painted surface. If the paint is still wet, just remove the debris with a lint-free rag and paint the surface again with a clean brush. If the paint in the can is dirty, it should be strained.
Minor scratches
It is a dense mesh of fine cracks. Appears, when two incompatible types of paint are applied on top of each other or a layer of paint has been applied over the previous one, before it dried up. In this situation, the surface must be sanded – by hand or with an orbital sander. When the surface is smooth, can be re-painted.
Resin leaking
Appears, when the painted wood has knots, which have not been properly leveled before. The heat of the sunlight causes the resin to ooze out, which breaches the shell. To fix it, we remove the damaged part of the coating down to the raw wood and use a specialist preparation to protect the knots. When it dries up – we apply the primer and mail the damaged area.
Bad drying
Usually it is the result of applying paint to a dirty or oily surface. We remove the paint and carefully clean the surface. Before painting, make sure, that there are no residual dust and grease on the surface.
Piercing the previous color
The color shines through the new layer, if there is no suitable undercoat. Please note, that the top layer is only a surface protection and should not completely mask this, what is underneath it. To solve this problem, you need to sand the surface and apply an appropriate layer of primer, until the color of the trousers disappears, and then paint over the top layer.
Insects
Insects like to sit on freshly painted walls, especially during the summer months. If the paint has not yet dried, remove stuck insects with the tip of a pocket knife or the like and carefully smooth the paint with a dust-free rag or brush. If the paint is already drying, we scratch the insect with a spatula.