Can You Use Regular Spray Paint Outside?

Spray paint is highly preferred since it is pretty easy to apply. However, most people are unsure whether they can use regular spray paint outside. Several factors can limit the use of regular spray paint outdoors.

However, this does not mean you can’t use it outside. So can you use regular spray paint outside? Using regular spray paint outside is ideal if there is no breeze to blow the spray away. The outdoor environment provides good ventilation for the mists and solvents of the paint.

In this post, I’ll discuss the use of regular spray paint outside. Let’s dive in.

Can Spray Paint Be Used Outside?

The short answer is YES! In fact, most people prefer using spray paint outside because of the excellent outdoor ventilation. If you’ve tried regular spray paint before, you know it can fill the air with fine mist and solvent particles.

Inhaling such particles is harmful to your health. While you can wear a respirator, working outside provides excellent ventilation for the fumes and mist. However, the breeze might also blow away your spray paint before it reaches the surface.

If the conditions outside are ideal, then applying regular spray paint outside is recommended. Falling leaves and bugs can spoil your work outside. Most people prefer to work indoors with the windows open. However, the breeze is calm, and there are no insects and falling leaves around; working outside is ideal.

Is Regular Spray Paint Waterproof

When you decide to use regular spray paint for your project, you need to be sure it can last. For most people, the biggest concern is moisture protection. Choosing waterproof paint is important for a long-lasting project.

Not all regular spray paints are waterproof. When buying one, make sure you check the label. Outdoor spray paint is a suitable choice and one of the best water resistant paint out there. Generally, outdoor spray paint is waterproof and can withstand most outdoor conditions.

The best part about spray paint is that it’s fast-drying. How long regular spray paint lasts outside depends more on the application process. You need to spray and seal surfaces correctly to ensure the color lasts.

Most spray paint features water-repellent properties that make it waterproof. The water-repellent properties work well against water making the paint waterproof.

You can make regular spray paint more waterproof by adding elements like varnish or sealers.

How to Prepare the Surface for Waterproof Spray Paint

Before any painting process, you need to prepare the surface for the best results. The preparation process is critical as it determines how long the paint will last. Paint lasts longer outside when water doesn’t penetrate the paint film.

Below are steps to follow in preparing the surface for waterproof spray paint.

  • Start by thoroughly cleaning the surface of the object you want to spray. Use soapy water to get all dirt from the surface. In addition, apply thinner to remove saturated items. If the surface has grease, use a degreaser and then rinse with clean water. Allow the surface to dry.
  • Next, you need the surface to be smooth. Sand and grit it using a sandpaper or sanding machine. Ensure you clean any dirt, stains, and rust on the surface. Wood and porous surfaces require sanding.

You need to have a flawless surface for perfect results. A rough surface will seal bubbles and crack the paint once it dries.

The sanding process is crucial but not necessary on all surfaces. However, outdoor furniture pieces need sanding for flawless results. You might consider a primer for outdoor projects and furniture.

A primer ensures the paint adheres to the surface. Primers ensure water doesn’t break the paint film easily. This keeps the paint looking great for years.

Types of Spray Paints

What is the best spray paint for my project? With so many spray paint choices on the market, it makes sense to know the different types. This will make it easier for you to choose suitable paint for your project.

There is no single best spray paint. The best spray paint for a project depends on the type of project. Here are the most common types of spray paints.


These are versatile spray paints suitable for all projects. The paint is suitable for outdoor and indoor use. It comes pre-mixed with a primer for maximum effectiveness. This also saves on the application time and preparation. The paint is also available in different colors to match your project.


This is another versatile spray paint type designed for multiple surfaces. It is a suitable paint for both indoor and outdoor use. Additionally, the paint is available in hundreds of colors to suit different projects. You can apply it on wood, metal, wicker, plastic, masonry, glass, and much more.

Rust Prevention

Rust-prevention spray paint is a great choice for spraying metal surfaces. The unique paint formulation prevents the metal surface from oxidizing. It is a reliable paint for most outdoor projects. It is also available in different colors.


The enamel spray paint is another durable choice that lasts for a long time on surfaces. It is a popular high-temperature paint that can withstand high temperatures. The paint is ideal for outdoor surfaces like tables and objects.


There is also automotive spray paint that is applied on automotive. It is a great choice when giving your car new looks. The paint works perfectly on plastic, fiberglass, primed surfaces, and metal. It also resists rust.

Special Spray paint

Lastly, we have the special use of spray paint that works on metallic and chalk surfaces. The paint features high temperatures and can last for longer periods.

The best thing about most of these spray paints is that they are water-resistant. However, this does not make them 100% waterproof. You need to read the paint label before buying one. For waterproofing purposes, you need outdoor spray paint.

How To Apply Spray Paint

How you apply the paint is also critical in creating a waterproof seal. Application is also important to ensure a flawless finish. You need to apply it carefully, give it enough time to dry, and add multiple coats.

Start by protecting your work area. You can wear a mask and set up protective sheets around the work area. Spray the first layer giving the paint time to dry. You can then add two more layers for an eye-popping finish.

Dry time is important for excellent results. Take your time and apply paint without hurrying to finish. Ensure you don’t miss any surface, as any late application will lead to varying drying times. Missed areas get damaged and develop cracks.

Make sure you read the spray instructions and follow them accordingly. You can finish the application by adding a clear glossy finish. The extra layer is important for outdoor projects since it ensures long-lasting durability.

Most spray paints will usually come off the water when wet. However, once dry, the binding agents fuse, and the paint hardens. Once dry, it is pretty hard to wipe off spray paint.

Can You Spray Paint in the Rain?

You cannot spray paint in the rain as water washes off the paint before it dries. Even with the strongest binding agents, you need to spray when there is no rain.

The best conditions to spray are on a sunny and clear day. Too much humidity can affect the spray paint. Aim to spray when humidity is under 85%, and temperatures are under 90 degrees F.

How long does spray paint last outside?

Regular spray paint requires at least 24 hours to dry fully. For most projects, the paint might seem dry to touch in 30 minutes to a few hours. However, you need to allow a minimum of 24 hours for long-lasting results.

One way to ensure the paint dries faster is by spraying thin coats. In addition, you can run a fan or a space heater from a distance. The paint dries in less time when the weather conditions are warmer and with less humidity.

Final Thoughts

Well, that’s it! You now know you can use regular spray paint outside. While most spray paints are waterproof, it is essential to read the label and confirm. The surface preparation and paint application process are important for long-lasting results.

Make sure you prepare the surface and apply paint without rushing. Give enough dry time before adding another coat.

Thank you for reading!

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