Is Spray Paint Waterproof? – Find Out Here

Randy Charles
Randy Charles
Professional Painter

Hi, I’m Randy Charles, the creator and chief editor of this site Paintcentric. I’m a businessman now by profession, but I used to work as...Read more

Many people often ask this question; is spray paint waterproof? We don’t blame them for trying to find out, especially if the project should last long. So, if you’re planning to use spray paint for your next project, this article is just right for you.

A majority of spray paints are waterproof, providing water resistance capability to objects they’re used on to some extent. However, as there are varieties of spray paints available today, some spray paints are not waterproof.

But knowing which spray paint is waterproof and the one that isn’t is not the end of it. There are several things you also have to remember when planning to get spray paint for your projects. In this article, we have carefully outlined all you need to know about spray paints. Then, as you continue reading, you will see the other necessities to consider when planning to get spray paint.

What is Spray Paint?

Spray paint is an aerosol-made product used to dispense fine mist when you press the dispensing button. When you compare spray painting to the traditional brush method, you realize that spray painting gives more precision in application. It is faster to use and quite easier too. It also comes in two types; industrial spray painting and commercial spray painting.

What is Spray Paint

These two don’t have the same means of application. Industrial spray paints work by breaking paint particles and turning them into the paint we see on the application. The commercial ones are different. Commercial spray paints usually comprise aerosol cans that dispense the paint when gasses break the paint into particles. Let’s go through the ingredients in some of the spray paint.


This ingredient affects the opacity and color of the spray paint. The pigments are of four different types. The white pigments for the scattering of lights and making the painted area more opaque. The color pigments provide different colors in the paint’s mixture.

Inert pigments are for filtering the paint’s film properties, while the last pigment is the functional pigment used as a protection against ultraviolet (UV) rays.


This ingredient helps in carrying the other paint ingredients. Instead of using water that can be somewhat slow in drying, non-aqueous solvents ensure faster drying. Another thing to note is that the type of solvent can also affect the dispersion of the pigments. Therefore, non-aqueous solvents are the best option.


These ingredients are gasses that push the paint out of its container through an open valve. They also contain other ingredients to help the stability of pigment dispersion, protect against corrosion in its container, and curb the pH Level and viscosity.

Is Spray Paint Waterproof?

Most of the outdoor spray paint is produced to withstand water from any source. Therefore, spray paint is waterproof. So, when someone asks; is spray paint waterproof, it is safe to say that most outdoor spray paint doesn’t run off from water splashes and can withstand the effects for a long time.

But to be sure you’re getting the right spray paint for an outdoor project, check the information on the body of the can. If the paint is waterproof, the manufacturer will indicate it there. Moreover, you will not only get the waterproof advantage of spray paint, but it also has a quick-dry advantage.

Is Spray Paint Waterproof

But note, when using spray paint, applying the paint to the surface correctly is necessary. This will make the spray paint application last longer. In addition, spray paint is a good option for extreme weather. Thus, if you want long-lasting paintwork for your outdoor furniture, then plan to get one of these spray paints.

Another interesting aspect of spray paint is that its application is very easy and fast. Also, you will get a uniform appearance after the application. But before you apply the paint, carry out prep work on the wood piece you wish to apply the spray paint on. You will get an amazing result if you do that and follow the right process to apply quality spray paint. Also, paintwork can last for as long as 3 to 4 years.

Types of Spray Paint

There are several types of spray paint, but we will just focus on the major three for this article. So, the main types of spray paint are airless spray paint, compressed air spray paint, and finally, HVLP sprays paint.

Types of Spray Paint

Here are the three main types of spray paint:

Airless spray paint

This type of spray paint forces the paint out of its reservoir through an electric pump. To achieve this, high pressure is applied to the paint reservoir. The paint is then blown out from the tip of the container onto the desired surface. This spray paint comes with different tips to fit the desired job. The variation of tips is lacquer, wood stain, and varnish. But, always be careful when using this type of spray paint, as you can inject paint into your skin.

Compressed Air Spray Paint

Paint is propelled out of the container’s tip utilizing compressed air. This produces a smooth and equal finish to the job. This kind of spray paint is the easiest to use, and it is the best for beginners.

But, always put on a respiratory mask and an eye protector. This will prevent those drops of paint that did not hit the surface of the object from entering your eyes or nose. The tools that make up a compressor spray paint are a high hose, a spray gun attachment, and a compressor container.

HVLP Spray Paint

The final spray paint on the list is the High Volume Low Pressure (HVLP) spray paint. A steady volume is used to push the paint particles out from the canister through its tip onto the preferred surface. The HVLP spray paint is common because its means of application is quite easier than the rest. Added to this advantage, its precision in the application is pretty good, and the paint doesn’t waste during the process.

Also, we recommend you use thin paints for HVLP spray paints. For paint like latex-style, the airless compressor will work better. However, a more viscous paint can work with HVLP spray paint but only with industrial ones. And these industrial HVLPs are quite expensive to buy or even rent. The HVLP spray paint is excellent for tight corners because of its adjustable pressure. They also use a turbine to break down paint particles.

Advantages and Disadvantages of Waterproof Spray Paint

While using spray paint is easy and simple, there are still some advantages and disadvantages to waterproof spray paint. Maybe you have a paint project to do, and you wish to know how safe and dangerous it is to use spray paint. Check the pros and cons below. This list will help you know what to expect from spray paint.

These are the major advantages and disadvantages of using spray paint:

  • Using spray paint is quite faster than that of a brush primer.
  • Using spray paint gives a faster application period compared to that of brush-on paint.
  • The finishing appears more even than using brush strokes.
  • Usually, spray paint comprises oil and can stand the test of water splashes for a long time something the latex paint cannot handle.
  • The outdoor application is quite easier than the brush on paint pattern.
  • You can trust spray paint to dry up faster than the ones out of a canister, even with no additive.
  • With the help of a nozzle gun, you can finish up some pieces of furniture without the stress of the countless brush strokes.
  • To clean things up, you don’t need those several buckets of water like you would for after using a brush. It is quicker and easier.
  • In most areas, the minors may not use this spray paint, not even to purchase one.
  • There are few colors to choose from using spray paint, unlike latex paint, with several color options.
  • The cost of spray paint is higher than latex.
  • Most times, you will need a ventilated area to use spray paint. Using it indoors is not ideal.
  • You encounter drips that might affect the evenness of the finished work.
  • Since spray paint is usually oil-based, cleaning up your fingers after a job will require some hard exfoliation.
  • You will always have to wear a mask, given that these spray paints are toxic.
  • Yours has to be good enough; otherwise, the job will become ruined at the end of the day.
  • Brush primer is better on high-traffic pieces compared to that spray primer.
  • If you decide not to use a spray nozzle gun, expect a cramp in your fingers.

Frequently Asked Questions (FAQ’s)

Can You Use Spray Paint in Rain?

You can use spray paint in the rain. But, there are some things you should consider in cases like this. First, always ensure that the wall or surface you wish to spray is dry. It is not ideal for spraying a wet surface, as you might end ruining the entire job. If it is okay to wait for a clear day, that is better.

How long until spray paint is waterproof?

Spray paint can withstand little water splashes after 2 hours of application. But the total resistance to water takes place after 24 hours. It is possible for spray paint to feel dry to the touch after thirty minutes. Although, this is not a guarantee that water can come on it without ruining the surface. So, always exercise caution when doing a spray painting job.

How long does it take spray paint to dry outside?

It is possible to feel the surface of spray paint in as little as 10 to 30 minutes. The time it takes for it to get completely dry is around 8 hours. Usually, spray paint on metals dries faster than on any other surface. Also, the temperature can affect the time it will take for spray paint to dry up. If the weather is warm, about 10 minutes is enough for spray paint to dry up on the surface. So if you want your paintwork to dry up faster, the use of a space heater can work well.

Does spray paint need to be sealed?

It is not very necessary to seal spray paint, but it is ideal if you want long-lasting paintwork. For gloss spray paint, there is an additional layer of sturdiness and, as a result, doesn’t need a seal.

How long does spray paint smell last?

It takes about two days for the smell of spray paint to go away completely. If the smell stays longer than this, it is probably because of a lack of ventilation in the room. In such a situation, opening the windows regularly will help get rid of the smell faster.

Final Verdict

When people ask the popular question, is spray paint waterproof, it shows they are interested in getting one for a job. With the information above, you can know what to expect and what not to expect when using spray paints. Also, check out the pros and cons of using spray paints.

Although spray paints are good, fast to apply, and durable, it is important to wear proper clothing and gadgets for the job. In addition, spray paints can have high-pressure shootings that can pierce through the skin. So, always wear the right clothing when using these types of paints.

Randy Charles
Randy CharlesProfessional Painter

Hi, I’m Randy Charles, the creator and chief editor of this site Paintcentric. I’m a businessman now by profession, but I used to work as a painter earlier in my professional career. There is simply nothing about painting that I didn’t do as a painter. From painting a fridge to a multi-storied building, I left nothing. I retired from my painting job in the mid of 2018 due to back arthritis problems.

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