Interior & Exterior Paint

Can I spray drywall mud through a paint sprayer?

Drywall compound can be sprayed with equipment designed for texture or high-viscosity material, but an ordinary paint sprayer may clog or be damaged by thick joint compound.

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Painting drywall is an interesting part. But when comes a question about spraying drywall mud as the quickest method, you need to learn more. 

Generally, you can spray drywall mud through a paint sprayer. And it is the quickest method for a big project. However, it is an expensive method. You need little skill to spray the mud. You also should know how to operate the machine.

In this article, I will describe the basics about spray drywall mud through a sprayer.

Can I spray drywall mud?

Yes, some joint compounds can be sprayed when thinned and mixed as directed, using equipment rated for texture or high-viscosity material rather than assuming any paint sprayer will work.

Additionally, you should take care of some other factors. Example: what quality is mud, mud combine ratio with water, how to set up sprayer, what manufacturer says, dry time, and more. 

However, this spray project is not for very beginners. With these factors, you need minimum skills to successfully complete the project. 

You can check this article for understanding which type of mud good for spray.

Can I spray drywall mud with a pump sprayer?

A typical garden or utility pump sprayer is not designed for joint compound and may clog or fail; use equipment specifically rated for drywall texture or similar material.

In the market, there have 2 types of sprayers that are designed for this type of work. These are,

  1. Airless paint gun
  2. Air spray gun

This type of sprayer features are different but can be used for the same project.

What sprayers can spray drywall mud?

Texture sprayers, hopper guns, and certain high-output airless systems can handle compatible joint compound, but nozzle size, pressure, and material limits must match the equipment.

Here is the top-recommended sprayer which you can be used.

Air spray gun

HILTEX 31229 Air Texture Hopper Gun 

HILTEX 31229 Air Texture Hopper Gun is one of the best spray guns for this type of project. This sprayer comes with a 5 Liter hopper cap where you put the mud for spray. 

This Gun grip is comfortable. You can control this gun easily while you spray. This gun has 3 helpful nozzles. These are 8 mm, 6 mm, and 4 mm. 

What tools are needed for spraying drywall mud

Typical setups may need a mixer, suitable texture or airless sprayer, correct nozzle, masking, and protective equipment, with exact tools determined by the compound and finish.

BILT HARD Ultra Quiet Air Compressor

BILT HARD Ultra Quiet Air Compressor is provided up to 175 PSI, which is enough for this type of project. It has a 2-horsepower motor and motor power 60Hz with 120V. The tank capacity is 10 gallons. Create less noise. This compressor can use for any type of spray project. It has 2 wheels for easy movement. 

Edward Tools Paint and Mud Mixer

Install Edward Tools Paint and Mud Mixer with a drill and make ready your mud. Its material is steel, so it is durable, rustproof, and easy to clean. It is good for max 5-gallon baskets. It stayed for a long time. 

How much water do I mix with drywall mud to spray

There is no universal water ratio for spraying joint compound; thin only within the compound and sprayer manufacturer’s limits so adhesion and finish are not compromised.

Generally, 1 kg compound needs 150 ml water. But it should not be all the time. But you can use one trick to make your drywall mud ready. 

First, take 1 kg compound in a bucket and put 50 ml of water then mixed the compound with a drill mixer. Then if you see mud is not ok, apply more than 50 ml of water and use the deal mixer. Follow this same method again and again until the mud is not ready.

It is a very easy method, and you will get the right thickness very easily.

For save your drywall mud against peeling in the future, you can check these tips.

How to spray drywall mud

Prepare and strain the compound as required, mask the area, test the spray pattern, and apply with equipment specifically rated for the material and desired texture.

Step 1. Cover up

Before the spay work, you should cover unnecessary areas like Windows, Doors, furniture, etc., and use tape on the wall or corner where you are not want to spay. The mud easily will stick to the surface, and it will be damaging to looks. 

Step 2. Ready the surface

You have to clean your wall properly. If there has old dust, clean it. Then take sandpaper, and lightly sand it. Remove all old peeling paint from the wall.

It is a very primary step, If you do it properly, your job will be long lasting. On the other hand for wrong work, the mud will peel off soon.

Step 3. Prepare mud

Mixing mud and water with proper thickness is quite important. This thickness always depends on your work.

Take a 5-gallon bucket. Put the compound/mud there. You need little water and should be careful about it. Take very little water one time like 50 ml for 1 kg compound. Then use the mud mixer drill for blending. Then, if you see the mud thickness is not ready, again use 50 ml of water and blend it. Repeat this process until your mud thickness is not ready.

If the mud is too watery, you need to mix more compounds to fix it. That will be costly. So you should follow the method to save your money.

Step 4. Spray

Take an air sprayer and the pot will fill with mud. Take air compressor power 40 psi. However, you see the sprayer not spraying properly increases the power of the compressor. 

Spray each wall surface properly. Although, if you make a small mistake, that will be fixed in the next step.

Step 5. Finishing

After spraying the mud, all surfaces are not smooth, and some spots can have no spray mud properly. So take a scraper. Apply it for making very surfaces equal. 

After finishing, wait to dry. If the weather is good, this mud will be dry within 12-24 hours. 

How to spray drywall mud for level 5

A Level 5 finish requires a thin skim coat over the entire surface; spraying may help apply material, but final uniformity still depends on proper leveling and finishing.

If drywall joints show thought paint, you check this article.

Step 1. Clear the surface first

Take any kind of cloth and clear every surface of the level 4 wall. Then take sandpaper and lite sand every surface of the wall. 

Because if you don't clean the dust, it will affect your level 5 priming. And it will not last long and very soon it will start to decay. 

Step 2. Ready your mud

Now time to ready your mud. The mud is already ready from the factory but you should need more extra steps to ready the mud completely.

Take a drill mixer and put it in the mud basket. And blend it sometimes for like 1 to 3 minutes. 

Mud blend is an important part because the company is not completely blended for long-lasting, so you need to take care of it before using the mud. 

Step 3. Apply the mud

Take an air spray gun. Put the mud on the pot. Ensure compressor power is 20-30 PSI. Now test the sprayer and how it is spraying the mud. 

If your test is okay now you can start to spray mod on the wall. Keep a distance of 18 to 20 inches from the wall to the sprayer. Maintain the same distance when you spray all over the wall. Spray tine coat. Use a wet mil thickness gauge to count the thickness of the mud. If you finish spraying all over the surface, give it time to dry like 6-12 hours.

Step 4. Apply second coat

After drying the first coat of spray mud, now is the time to apply the second coat. You do not need to follow any specific method for creating a second mud. You can use the first apply mud in the second coat. 

Take the air sprayer. Apply the spray as the first coat method. And make sure to use again wet mil thickness gauge to measure the thickness.

This coat is important because it will make your surface completely smooth and look awesome. And it will cover your first coat mistake gap. 

After dry, your project is completely ready, and it is resistant to any type of mud cracking, rain spots, forming, and other problems. 

Is it possible to spray drywall mud on wood walls?

Joint compound is intended primarily for drywall systems and may not bond reliably to wood without suitable preparation, movement control, and a compatible substrate treatment.

This mud also sticks to the painted wood wall surface. But the wall needs some light sand before applying the mud.

Conclusion

Spraying joint compound is practical with the right texture or high-viscosity equipment, but an ordinary paint sprayer should not be assumed suitable for thick drywall mud.

I hope this article is helpful for you as well, as if you think someone could benefit from this article, feel free to share it.