The perfect answer to this question depends on the surface you are painting:
If you are applying the latex paint on wooden cabinets, or doors, it is imperative to sand the latex paint. However, if you are painting it on the wall, it might not require any sanding between coats.
If you are painting it on a wall with oil-based paint already, you need to sand the wall. Latex paints are an alternative to oil-based paints, and they offer several benefits. These types of paints have high resistance to acid, alkaline, water, alcohol, and solvents.
Latex paint also dries very quickly. This can be helpful for interior painters who work on exterior surfaces that don’t maintain paint quality if they take too long to dry. For these reasons, among others, latex paint is the best choice for many painting projects.
Latex paints are not that cooperative with oil-based paints. That’s why the surface of the wall or furniture has to be sanded before applying them to it. Let’s read ahead and find out more about sanding and latex paints!
How Long Should Latex Paint Dry Before Sanding?
It is best to sand the latex paint once it has dried. For that, you need to give the paint a significant amount of time which can be around 24 hours. You can apply some of the latex paints after 4 hours, but all of them are not the same. You may have to wait for more time for other types of latex paints.
Latex paints are one of the best choices for your home, but you need to keep in mind a few pointers. Taking absolute care of them will ensure that they last for many years without peeling off. How?
Well, the very first thing is to make sure that you apply them properly on the wall. For this, you need to check if the surface you are painting is rough or not. If the surface of the wall is not rough but smooth, the paint may not adhere to it well.
On the other hand, if it is properly sanded, the paint will go on smoothly. If you have previously painted the wall with water-based paint, or if you have a cured latex paint it is best to use fine-grit sandpaper. On the other hand, if it is painted with oil-based paint, a 120- or 150-grit medium-size sandpaper will do the job for you.
Painting the wall with water-based paint may not require sanding after every coat. Therefore, it is not necessary to sand the latex-based paint after every coat.
It may take the paint 12 to 24 hours to dry and be ready to be sanded off if it is painted on doors and cabinets. As facts suggest, it may take latex paint 30 days to completely cure and become hard.
Related Read: Should You Sand The Final Coat of Polyurethane Paint?
Is Sanding Between Coats of Latex Paint Necessary?
Yes, it is extremely critical for you to sand the latex paint after each coat on the cabinet, doors, and trims. However, if you are painting it on the wall, sanding may not be required unless you are painting on oil-based paint.
First off, no matter what type of paint it is, you need to sand the wall before applying the first coat of paint.
However, if you are using latex paint to color the wall, it is not necessary to sand it after each coat. If you try to sand the wall between coats, you may end up removing the paint entirely.
If you are painting a wall that already has oil-based paint on it, you need to sand the wall before applying the latex paint. You see, oil-based paints are really smooth, which is the reason they do not cooperate well with latex paint.
Related Read: Can You Use Latex Over Oil-Based Paint?
How to Sand Latex Paint?
The steps to sand down fresh latex paint are pretty simple. You just need to take care of the sandpaper to use. Usually, it is 120-150 grit sandpaper.
Before you dive into the steps of sanding down latex paint, it is necessary to ensure that it is ready for sanding. For this, you have to keep the below-mentioned points in mind:
1. Check The Latex Paint Type
The properties of the paint, like its thickness and color, play a crucial role in sanding. There are various types of paints, and all of them have different drying times.
There are some that can be reapplied after a small interval, say 4 hours. On the other hand, paints may even take 12, 18, or 24 hours to dry. With these paints, you need to be patient.
The way the paint is applied to wood is also a crucial factor. For example, if the paint is applied with an airless sprayer, it will be way heavier than applying it with a paintbrush. Moreover, dark colors tend to take more time for drying than light colors.
Related Read: Should You Apply Latex Paint With a Roller?
2. Find The Right Time
Giving the paint enough time for drying is not enough; you need to ensure that you are working in the ideal conditions too.
For example, if you are painting outdoors, it is best to avoid painting if there is a wind blowing. Yes, the paint will dry quickly, but the dust in the air and pollen will contaminate the paint as it will be wet.
If we talk about the best drying conditions, the temperature should be 70-80 degrees Fahrenheit. Whereas the humidity required is less than 70%. If the humidity is more than 80% or the temperature is less than 65 degrees Fahrenheit, give the paint some extra time to dry.
Related Read: Does Latex Paint Freeze?
3. Use 120-150 Grit Sandpaper
Take the right sandpaper and wrap it on a block. Wrapped sandpaper will be easy to use on all surfaces (wood or wall). As far as the sandpaper choice, opt for 120-150 grit sandpaper.
These sandpapers are ideal for sanding the surface without damaging the paint. It is possible that some color might come off. But, don’t worry about it.
Related Read: Products That Dissolve Latex Paint?
4. Start Sanding
As you have the right sandpaper, it is time to begin sanding. Start sanding from the edge of the surface.
Lower grit sandpapers are a bit rough, so try to not add too much pressure. This allows you to smooth the surface and make it ready for the next layer of latex paint.
- Related Read: Do You Need To Dry or Wet Sand Water-Based Paint?
- Related Read: How To Dry Sand Chalk Paint?
5. Use Ultra-fine Sandpaper
Once you sand the latex paint, you need to add the next layer of paint. After you are done with the last coat of latex paint, sand the surface with ultra-fine sandpaper to make it absolutely smooth. You can use 320-400 grit sandpaper for this.
Related Read: Does Latex Paint Go Bad?
Do You Need to Sand Before Applying Latex Paint?
Yes, you need to sand off the surface of the material before you apply the latex paint to it.
To make sure that the surface of the furniture or doors grabs the paint well, sand it properly. Ensure that you sand every last inch of the surface.
If you are painting on a wall that has oil-based paint on it, it becomes necessary to sand it as the paint will not allow latex paint to maintain traction.
This will lead to an uneven painting. One more thing to do before painting is to wipe off any sand residue left on the wall. It will make the surface uneven after painting. You can use a damp, wet rag to do this.
Related Read: Should You Sand Between Coats of Polycrylic?
In this post, we have explored various things about sanding. This includes the importance of sanding and the type of sandpaper to be used for different situations. We also covered different details that will help you get through with it easily.
Moreover, after reading this post, you will know if you should sand latex paint or not. Lastly, the write-up also includes some crucial steps and details regarding how to sand off the paint easily.
We believe that you enjoyed reading the blog and got everything that you need to know. Good luck with your painting project.
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