When laying flat, the paint has nowhere to go, which will allow the material to spread and level. Applying too light a coat does not allow the finish to spread and level and the result is tiny orange peel, sandpaper-like texture. Applying a coat that's too thick might cause pooling and affect the dry time.
In short, that rough texture that you feel is basically a mix of micro-level dirt that has stuck to your clear coat that won't come off with a simple wash. It can be things like industrial fallout, paint overspray, metal shavings, dust, etc…
If you paint with a brush, dependent upon the type of paint and brush you used, the application can be spotty if the humidity was low and the conditions were hot or windy. If you applied additional coats without light sanding a dry paint coat you can build up your spotty look or brush strokes.
Wall condition: If your walls are in good condition, you may only need one or two coats of paint to achieve a smooth, even finish. However, if your walls are rough or damaged, you may need to apply additional coats to cover up imperfections.
Old paint might have debris or clumps (even if it's an unopened can!) and new paint might need to be stirred.
Your paint may be too thick. Whether you are spraying, brushing or rolling, the consistency of your paint is essential. When spraying, I always add 1-2 ounces of water for every 10 ounces or so of paint. When brushing, I use a mister to spray a light mist of water onto the surface when doing my final long strokes.
Don't Overwork the Paint.
If you go back and forth over the paint, brushstrokes will almost certainly occur. Rather, THINK THIN. Instead of using globs of paint, apply multiple thin coats. Also, brushing (or rolling) from one end to the other of your piece will avoid starting and stopping strokes.
It is typically safe to apply a second coat after four hours for latex paint and 24 hours for oil-based paint. Latex paint is dry to the touch in about one hour, while oil-based paint is dry to the touch in about six to eight hours.
Paint Bubbling & Blistering
Take steps to avoid this problem before it occurs. Paint blisters or bubbles occur when the paint film lifts from the underlying surface. The loss of adhesion between the paint film and surface is usually caused by heat, moisture or a combination of both.
One of the most popular types of wall paint, eggshell finish provides a low sheen and a soft, smooth finish just like a true eggshell. Perfect for low- to mid-traffic areas like hallways, living rooms, entryways and family rooms.
Key Takeaways: Sanding between paint coats helps create a smooth and even surface for the next coat of paint to adhere to. The purpose of sanding is to remove imperfections, bumps, drips, and drips on the painted surface. Sanding also helps to improve adhesion and durability of the paint job.
Give your piece a full sand with a very high grit sandpaper!
A butter smooth sanding all over with change your piece dramatically. Use 400 grit (or higher) piece of sandpaper all over your piece and I PROMISE you that you WILL feel a difference. I use this one, but any soft sandpaper with a high grit will work.
Application
If your roller runs dry, you'll find yourself with uneven patches, leaving your walls looking inconsistent. Also resist the urge to rework wet paint and trust the process… it will look patchy whilst drying! Another common culprit in achieving a patchy effect is not maintaining a wet edge whist cutting in.
The texture and finish of the painted surface can be negatively impacted by overly thick application. For instance, it might obscure details on textured surfaces or woodwork. To avoid these issues, it's important to follow the manufacturer's instructions regarding thinning and application.
Roller marks, or lap marks, can occur if you don't maintain a wet edge while painting. To restore a smooth finish to the wall, sand down all the uneven areas until they are smooth. Then wipe the walls down completely to remove all dust.
By painting with a very light touch, you can create a smooth, flat finish with ease. If you're finding the paint a little thick, dilute it with water to help it go on even more smoothly. You can also sand lightly when done, too. After painting, seal indoor furniture with Chalk Paint™ Wax.
Environmental compounds from bird droppings, bug residue, tree sap, acid rain, and good ole fashioned dirt and debris can cling to the surface of your car and create a dull appearance. Sometimes the contaminants can be simply washed off to reveal the shiny paint underneath, perhaps with the use of chemical cleaners.
Sand over the drip with medium (100-grit) sandpaper on a sanding block in a circular motion until you can no longer feel the paint ridge or any surface unevenness. Switch to fine (220-grit) sandpaper and sand over the same area to remove any scratches from the previous step.
Reapply another coat to fill in bare spots. If there are clumps or bubbles on the painted surface, sand it, wipe clean, and reapply a coat of paint. To avoid streaks or lap marks from a roller, maintain a wet edge by applying paint toward the unpainted area and then back into the just painted area.
A difference in paint sheens always has a root cause, usually poor application processes, that include: Over-thinning the paint. Overspreading the paint across the surface. Overly porous substrates that result in the over-penetration of the top coat of paint.