Does Interior Painting Need Thinning Acrylic Paints?

Thinning acrylic paint is a process that involves adding water or other medium to the paint, which slowly dissolves it, making it thinner, more fluid, and easier to flow. This process can be used for all types of spray guns, including latex, oil-based, and acrylic spray paint. The amount needed to thin Sherwin Williams paint depends on the type of sprayer, paint thickness, and temperature.

For airless sprayers, latex, water-based, or oil-based paints are not required to thin, except when the paint is formulated for use without thinning. To thin paint, you will need a paint can opener, stir stick, measuring cup, water or a thinning agent, an empty container or bucket for mixing, and a stirring stick or paint mixer.

Oil-based paint can be tricky to work with due to specific mixing agents like turpentine. Airbrush thinner is used to help thin out airbrush acrylic paint, while paint extenders made by manufacturers only make the paint more transparent and not thinner.

Acrylic paints do not need water added, but some artists add water for a watercolor look/feel or a thinner paint consistency. Water acts as a solvent for acrylics but also thins the pigment spread, and if too thin, can lead to adhesion issues. Acrylic colors can easily be thinned with water, but large amounts may leave only a small amount of acrylic resin on your work.

To properly thin acrylic latex paint, add about two to three ounces of water per gallon, depending on the starting condition. There are limits to how much you can thin before affecting the chemistry. Up to 30 percent water can thin acrylic paint but still allow it to coat a surface, while 60 percent or more water creates a watery paint.

Dish soap can be added to acrylic paints as a flow improver, helping break their surface tension. Medium is paint without the pigment, so adding paint helps it thin down better than water.


📹 How to Thin Your Paints in 2 Minutes

In this quick tutorial Jay teaches you how to thin your acrylic paints to the right consistency! We have new videos every Monday, …


Can you thin interior acrylic paint with water?

Water can be used to thin acrylic colors, but excessive amounts can leave only a small amount of acrylic resin on the work, causing pigments to smudge and making the paint film thinner and more fragile. This can increase the risk of damage during transportation or wrapping. Amsterdam acrylic medium is a solution to this issue, as it adds acrylic resin to the paint to protect the pigments, make it easier to spread, and retain the paint film’s durability.

This method allows for longer paint life and higher color transparency. In this video, the difference between using pure acrylic paint, mixing paint with water, and using Amsterdam acrylic medium is demonstrated.

Can you put acrylic paint in wall paint?
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Can you put acrylic paint in wall paint?

Acrylic paint is a versatile and versatile paint suitable for both indoor and outdoor use. It can be applied using distemper, acrylic paint, or regular acrylic paint, but distemper paint does not require primer. Acrylic paint offers limitless potential for artistic expression and provides a comfortable environment for painting. Its versatility and durability make it a popular choice for both home and workspaces. Acrylic paints are water-based, making them durable and easy to maintain.

They are versatile and can be used in various settings, such as offices and residences. The versatility and durability of acrylic paint make it an attractive choice for those looking to add a touch of color to their walls.

Can I use acrylic paint without thinner?

In order to achieve the optimal results with acrylic paints, it is necessary to utilize thinners and extenders that have been specifically designed for this purpose. These include products such as Flow Aid and paint retarder, which serve to slow the drying process and extend the longevity of the paint. Additionally, water can be employed as a means of slight thinning.

Can you use isopropyl alcohol to thin acrylic paint?

IPA represents an excellent alternative to acrylic lacquer-based paints such as Tamiya, Mr. Hobby Aqueous, and AK Real Color. It is highly effective and sprays smoothly. Furthermore, IPA is utilized as a solvent in the production of thinners, which are in turn employed by brands as a means of facilitating the application of IPA-based paints to scale models.

What is a good substitute for acrylic paint thinner?

Scott suggests using Isopropyl alcohol or water as cheap alternatives to Tamiya acrylic thinner. He prefers lacquer thinner for cleaning, as it is a blend of solvents and is preferred over a single high flash solvent. Lacquer thinner can clean guns, original Aurora plastic, and restore work. It can also be used to soak dried or clogged rigs and clean all paraphernalia. Scott also shoots lacquer paints, as it doubles as a thinner and cleaner. Some enamels can be thinned with LT. Both single and dual action air brushes have their place in the cleaning process.

What is the best medium to thin acrylic paint?

To thin acrylic paint for pouring, use a medium that maintains the adhesive properties of the paint. There are three main types: professional medium, household paint conditioner, and PVA glue. Professional mediums are formulated for acrylic pouring or thinning paint, designed to retain color, prevent cracking and crazing during drying, improve paint flow, and provide protection and durability. They are generally non-yellowing and are commonly used in larger proportions. These mediums are essential for maintaining the paint’s adhesion properties.

How do you thin interior acrylic latex paint?

To thin latex paint, use water as it is water-based and cannot be ruined by chemical paint thinner or solvents. Gradually stir in ½ cup of water per gallon of paint until the desired thickness is reached. Test the paint’s thickness with a viscosity cup or funnel, as if it flows freely, it is likely thin enough for sprayers, brushes, and rollers. For large projects or multiple cans of paint, use a 5-gallon bucket for consistent results. For smaller quantities, use a smaller bucket.

What is the best medium to use with acrylic paint?

This guide provides a comprehensive guide on using acrylic medium fluid, specifically gloss or matte, to enhance the creative flow of your paintings. A gloss medium helps thin your acrylic paints, making them more transparent, which is ideal for creating glazes and stunning watercolour effects. The guide explains that adding an extra medium can alter the texture, drying time, and consistency of your paints, making them more versatile and suitable for both seasoned and new artists.

Do professional painters water down paint?

Watering down paint involves adding a significant amount of water to the paint, like two gallons for every five gallons, while thinning paint involves a relatively small amount of water, like 2-4 cups for every five gallons, which improves the paint’s workability without diluting it or causing negative results. Trusted contractors thin paint within manufacturer’s specifications, and over-thinning is a common mistake made by an unintentional contractor. The difference between the two is the contractor’s intent, with over-thinning being a correctable mistake, and thinning implying the contractor is intentionally trying to stretch the paint.

Do acrylic paints need to be thinned?
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Do acrylic paints need to be thinned?

Acrylic paint can be thinned using water or acrylic medium. Water breaks down the binder, creating a matte finish like watercolor. Acrylic medium minimizes water use, allowing the paint to sit on top of the surface, maintaining a glossy appearance. The amount of water added depends on the desired effect and the surface. Up to 30% water thins acrylic paint but still coats it, while 60% or more creates a watery wash.

A wash is a watery paint application with only a hint of color remaining, while medium adds more transparency, often called a glaze. Both methods can be used to create different qualities in acrylic painting.

How do you thin Sherwin Williams interior paint?
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How do you thin Sherwin Williams interior paint?

To thin latex paint for use in a spray gun, pour the paint into a bucket, add ½ cup of water for every gallon of paint, mix thoroughly, and check the thickness by running the paint through a funnel. Oil-based paints use petroleum-based solvents, while latex paint uses water. Oil-based paints were thinner, faster to dry, and did not clog the spray gun’s nozzle. Latex paints are made of new synthetic resins that are compatible with water, have a thinner consistency, and are wet enough for use in a spray gun.

However, latex paint may be too thick for the spray gun’s nozzle and needs thinning. To thin latex paint, pour the paint into the bucket, add ½ cup of water for every gallon of paint, mix thoroughly, and check the thickness by running the paint through a funnel. If the paint is too thick, add an additional ⅛ cup of water per gallon (3. 8 liters) of water and mix.


📹 Best Way To Thin Paint For HVLPLVLP and Airless Paint Sprayers Sold at Harbor Freight

So, How To thin paint to be used in a paint sprayer? A simple way I thin paint to be used in an Airless Paint Sprayer, HVLP Spray …


Does Interior Painting Need Thinning Acrylic Paints?
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Rafaela Priori Gutler

Hi, I’m Rafaela Priori Gutler, a passionate interior designer and DIY enthusiast. I love transforming spaces into beautiful, functional havens through creative decor and practical advice. Whether it’s a small DIY project or a full home makeover, I’m here to share my tips, tricks, and inspiration to help you design the space of your dreams. Let’s make your home as unique as you are!

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19 comments

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  • There’s literally no other article like this oue there unless you go into a 15 min article and watch every bit of it, good job man and thank you, started painting a couple months ago and there was things such as keeping the paint in a drop in the pallet that i didnt know, i actually thought i was making my pallet with the wrong paper haha

  • This is so so useful for beginner painters, thank you for making it! Everyone said, thin your paints and then mumbled something about the consistency of milk and never elaborated beyond that. It took me hours of experimentation to get comfortable with this and acceptable results. This cleared things up for me even more!

  • Some of us need to actually learn to not force a dropper bottle, if paint is not coming out DO NOT squeeze harder or this happens, i still have a bit of fluorescent paint in a few spots somewhere on my living room because of this. Pause what you’re doing, unclog the tip (sometimes just running water is enough but check), then try again once you know it’s not clogged. Goes very much against the instincts of us stubborn people but needs to be done that way.

  • Why do metallic paints such as leadbelcher and retributor armor go dry in like 2 nano-seconds while I am painting on a dry palette in my basement, gosh!!!??!!! 😢 Some other random article that I watched recently advised me not to put metallic paints on a wet palette. I picked up a bottle of army painter airbrush medium to try while I’m working with metallic paints on my next session. Will airbrush medium turn our to be a pro strat or a peril of the warp?

  • I feel strange because after a few years of mini painting I have come to the conclusion that I think I like GW’s pots more than dropper bottles for the exact reason shown in this article. I’ve had more than one dropper bottle pop like that on me before. GW’s pots, for all their faults, have never exploded on me.

  • I didn’t know about the drop staying wet thing! That will help a lot! No one ever explains this stuff, then they mock you for not knowing. Imo, learning how to fundamentally use paints and how to properly care for your brushes and use your brushes are the main things anyone should learn. I’m learning now and it is making learning how to paint anything much easier!

  • Hey Buddy, ibjust discovered your website during i searched some useful weathering tips on youtube – and once i viewed one of your vids i didn’t even progress with my initial search cause your website is just incredibly helpful to me! Thus, i just wanted to apprechiate your vids by leaving an abo and this comment – keep it on, your explanations and examples are awesome! 🙂

  • While it’s great that you described how the consistency of paint, however I’m among those who just prefer to use a dry pallet and some acrylic thinner to thin down my paints. Of course water helps, but the thinner is best in my opinion. Paint too thick and you don’t want it to be the next time you want to use it? Put some drops of thinner in there. Mix it up good (preferably with a paint shaker/vibration mixer), and it should be good after that. Just don’t overdo it, because there’s no going back after you put in too much.

  • 1:45 and for those with a bit of sensitivity to paint on their skin I suggest picking up a swatch of faux leather in a light beige color. Easy to find at most crafting stores and sometimes the fabric department has scraps for way cheap. Clean up is just a bit of soap and water and your test surface is ready to go again. Enjoy.

  • I thought this was pretty obvious…. but then again, i used watercolor. I was wastiong so much paint though. So so much on the pallet, I’m used to water, not oil based. So I’m like “why is this drying so fast? I can’t re-wet it..hmmm…. so I’ve just been constantly adding water…. Droplet. Wow. it’s so obvious in hindsite. Thank you. I never wanted to pick up oil painting b/c that’s what “everyone does as art”. Watercolor…is another element, excuse my phrase. You’re dealing with the forces of nature, gravity, heat, water….the air environment…sometimes literal salt. To make it right. Also, you can. not. mess up. There’s no such thing as paint thinner lol. (pro pic is my OC).

  • I’m about to weather my 20 inch star destroyer – i already base-coated it and carved some of it’s surface details to keep it’s structure during the painting process – and that’s it ;D Don’t know how to start… i have a huge amount of acrylic paintings (i used to paint on canvas) and just got an airbrush which i also have to practice with a little more. Is it better to fill the surfaces carves with thinned dark color before i begin the paint job? Or should i first paint and darken the carves afterwords (e.g. with thinned black color, then wiping all off the plane surface parts)? 🙂

  • Thanks for this. Back in the day, we’d just crack open a pot of Citadel paint and water the whole thing down until a toothpick dipped into it dripped appropriately. Coming back to the hobby after years, all my paints are in dropper bottles and I realized I had no idea how to test them for consistency.

  • Excellent article Jeff! Not just this one, but your entire article library! I’m in the process of getting a new apartment, and have to repaint everything there. The paint I’m using (acrylic) has in its instructions that for the first layer the paint must be thinned with 20% of water, and the next layer with 10%. I noticed that you don’t thin your paints, and use the out of the box. Should I follow the paint’s documentation or leave it as is, I’d love to hear your thought about it! Thank you

  • Hey Jay, what about thinning metallics? I find metallic paints (at least the ones from Vallejo Game Color and Model Color ranges) have metal “flakes” and don’t behave exactly like regular paint. I find if I do NOT dillute them, they are metallic goo, hard to apply but also drying too fast. If I do dillute them however, the water separates the metallic flakes and it doesn’t behave like I want. Is there a special technique for metallics? Thanks!

  • This. This is the article I’ve needed. I’ve heard “Thin your paints” and “two thin coats” plenty of times, but… I didn’t really know exactly what that *meant*. I mean ‘add some water to paint’ was obvious, but… how much, what am I looking for, etc… I did not know. Getting back into the hobby as I am, this has been the part making me most nervous – assembling and converting? Easy (well not easy but, something I have a good understanding of I think) – but painting? … shoot no. (Shame I can’t paint my minis digitally hah.)

  • I’ve struggled with some VCG and Scale 75. It feels like they go from jelly thick to streaky without a middle ground. When I blocked in the values on my inceptors the sky blue S75 paint I used as a base highlight literally took 9 coats to get an even coverage. The same with the orange, gun metal grey, yellow, and cadmium flesh VCG I own. I’ve tried distilled water, glaze medium, and lahmium medium as thinning agents with no discernible difference.

  • oh man, when you squeezed that bottle of Vallejo, my heart sank, I had that happen 1 time when I first started painting, an I wish I had seen this article before because I had no idea the bottle tip came out,,, I was devastated,,,,,it was a brand new bottle of Vallejo beasty brown straight out of my first set of Vallejo game paint, I had it directly aimed at a paint tray, it wouldn’t come out so I put some pressure behind it thinking well eventually that clog will break, and then BAM-!! it exploded everywhere,,,that’s what she said,,lol, the tip went flying after it bounced, I guess I tried to pull it back and away, idk why, but half went on the tray and table, and basically 40 more percent went onto my carpet, DEVASTATING!! lol I almost quit right there, I was thinking how am I gonna replace this, especially since I just started, an was thinking man this was lot of my limited money for such a small amount of paint, since then I have been so careful, I try to press the tips down, if I feel any resistance I make sure to use a pin to unclog it, anyway, great article

  • It doesn’t take me two minutes to thin my paint. It takes roughly about five seconds. I can’t be wasting time on paint. I’ve got stuff to do like writing that crime novel, world domination or finishing off that patio for the ex wife as her feet are sticking out from under the decking. Oh sorry, totally miss read the title. I see what you mean. I haven’t murdered my ex-wife honest. She’s just on a very long holiday at the moment.

  • Always thin your paint, well that is assuming the paint you’re using isn’t shit ass useless paint that has no colour or usefulness. I think we often make statements with zero statements about the paint in general. Now I will be honest I’m not even an average painter so feel free to ignore everything I just said. 🙂

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