How to Paint Plexiglas

Lead Image
What You'll Need
Acrylic spray primer
Acrylic spray paint
Fine-grained sandpaper
Clean rags
Waterproof sealant
Proper respirator or dust mask
Adequate ventilation

While ordinary plexiglass fits many applications, you can get even more use out of it by painting it. Painting plexiglass opens up a whole new field of possibilities for you to choose from. For example, you could customize your plexiglass furniture to match the existing decor or decorate it in any artistic way that you might wish. Be creative!

Step 1 - Sand and Clean the Plexiglass

Before you begin to paint, you must prepare the surface. A dirty surface will be difficult to paint, as will an extremely smooth surface. First, use your fine-grained sandpaper on the surface of the plexiglass. Sand lightly and be sure to hit every spot. However, you don't need to sand very hard or for very long.

Next, get out a sponge and soak it in soapy water. Use the sponge to clean off the plexiglass you plan to paint. Then rinse out the sponge and use it to wipe off the plexiglass. Finally, dry off the surface with a clean rag. Washing the plexiglass after sanding it ensures that no small particles get trapped under your coat of paint.

Step 2 - Add Primer

The surface of your plexiglass is now ready to accept paint, but in order to get the best results, you should prime it first. Before priming, set up a drop cloth outside on a flat surface and set your plexiglass on top of it.

Get out your spray acrylic primer. Shake it thoroughly and hold it 18 to 24 inches away from the surface at a 45-degree angle. Pull the trigger on your spray primer and keep moving it constantly. Never paint the same spot twice. Using too much primer is the worst thing you can do in this situation. If you use too little, you can always let it dry and add a second coat.

When you finish, allow the primer to dry. If necessary turn your plexiglass over to prime any sections that were covered the first time. Finally, examine the coat primer to make sure it looks thick enough. If it does not, repeat the process.

Step 3 - Paint the Plexiglass

Use your acrylic spray paint of the color you have chosen. Shake the spray paint and paint using even, constantly moving passes from 18 to 24 inches away at a 45-degree angle. After the paint dries, turn over the plexiglass to paint the bottom if necessary. Finally, look at your work and decide if the color is bright enough for your tastes. If it is, you are finished. If it is not, apply a second coat.

You can use acrylic paints of any kind if you want to decorate your plexiglass once you have applied your coat of flat color.

Step 4 - Waterproof (Optional)

If your plexiglass is going to be outside or exposed to water inside, you may want to apply a waterproof sealant to it. Choose a commercial sealant advertised for use over paint and apply it according to the instructions on its package.

This guide on how to paint plexiglass will help add a touch of beauty to any area. All it takes is four simple steps!