How To Seal Acrylic Paint On Plastic?

Suppose your friend’s birthday is coming and you want to give her/him some handmade gifts. You may choose some plastic or similar items and paints to do artwork and make a good gift.

You will need to secure the color on the surface no matter what things you have used. For instance, if you use plastic and acrylic paint and leave after coloring anyways, the color may not set well.

That’s when you will need to seal the acrylic paint on the plastic; the solution is to know how to seal acrylic paint on plastic.

How To Seal Acrylic Paint On Plastic

In this guide, we bring you stepwise guidelines to secure or seal acrylic paint on plastic. Let’s get started.

Suppose you have just finished painting a plastic item with acrylic paint, and you want to make sure the paint doesn’t come off. You may use various methods to seal the paint, but what if the paint doesn’t set well even after you’ve sealed it? In such cases, you may need to choose between using hairspray or Polyurethane.

Hairspray will help in making the paint stick for a short time, but Polyurethane is better for long-term protection against the paint coming off. If you’re looking to seal acrylic paint on plastic permanently, Polyurethane is your best option!

Which Is Acrylic Paint Used for?

Which Is Acrylic Paint Used for

Acrylic paints are good for artworks or painting the whole surface; you can even draw with them. You may have seen acrylic paints on wall decorating, though the spray paints are suitable for that.

Moreover, you can also use acrylic paints on various thick papers, including poster papers, to prepare posters or advertisements.

Another significant use of acrylic paints is to coat on different metals, especially when it’s steel.

Using acrylic paint on metal prevents oxidation because the humidity in the air leads steel or other metals towards oxidation. Thus, the metal surface catches rust, and the metal equipment slowly damages.

The acrylic paint can come in different ways, such as spray paint cans or gallon buckets, which you should apply with a brush.

What Can Be Used To Seal Acrylic Paint?

Can Be Used To Seal Acrylic Paint

Sealing acrylic paint on plastic is important for a number of reasons. Not only does it protect the paint from fading and peeling, but it also ensures that the paint is durable and won’t come off witchooser or other household cleaners. There are a variety of materials that can be used to seal acrylic paint on plastic, including polyurethane and silicone caulk.

Both of these materials offer flexibility and a wide range of sealing abilities, making them perfect for different applications. Before choosing which material to use, be sure to read the product instructions carefully. As with all plastic painting projects, take care to seal acrylic paint on plastic correctly to avoid any potential problems down the road.

How Do You Keep Acrylic Paint On Plastic?

How Do You Keep Acrylic Paint On Plastic

Acrylic paint is excellent for creating a variety of different effects, but it can be difficult to keep the paint on plastic. That’s where sealers come in! Follow the instructions on the package carefully to ensure proper application and results. Once your project is finished, remove the sealer with soap and water to restore the paint’s original color.

There are many different types of sealers available, so it’s important to find one that works best for your project. Sealers are a great way to protect the plastic surface from paint and other contaminants and give your plastic art a glossy finish. So go ahead and seal up that acrylic painting!

Can You Put Acrylic Paint on Plastic?

Can You Put Acrylic Paint on Plastic

It may sound impossible, but yes, you can put acrylic paint even on a plastic item. Though the paint sets better on ceramic, concrete, metal, and papers, it’s good with plastic as well.

You have to remember that acrylic paints take along to set upon plastics, and it’s better not to use sprays.

If you know how to paint with acrylic on plastic, things will get easier for you and get the best results.

Things That You Need

Let’s briefly see the necessary items for acrylic paint on plastic.

  • Paper Sheets to cover the area that you don’t want to paint
  • Clean water or soap water with a tissue or towel to clean the plastic before painting
  • Sands that may help the plastic dry and the surface rough
  • A suitable primer that will coat above the plastic before painting
  • The necessary amount of acrylic paint from a well-known brand
  • A Sealant or protective liquid for the paint

Necessary Time: The paint may take half an hour to dry on the plastic, and the total process will consume no more than 2 hours.

Total Cost: Acrylic painting for plastic is quite cheap, and it won’t cost more than $10.

Can You Use Hairspray To Seal Acrylic Paint On Plastic?

Can You Use Hairspray To Seal Acrylic Paint On Plastic

Acrylic paint on plastic can be a beautiful and durable surface, but it can be damaged easily. For best results, seal acrylic paint with a sealant like a hairspray. It’s a popular option because it’s easy to use and fast-drying. However, there are some downsides. Hairspray is difficult to remove later, and it can cause plastic surface damage. In addition, sponges or soft cloth are better options because they’re less likely to damage the plastic surface. Just be sure to use a low-pressure spray, so you don’t damage the surface!

How to Paint Plastic with Acrylic Paints?

How to Paint Plastic with Acrylic Paints

Let’s see the best way to paint plastic with acrylic step-by-step to guide you:

Step 1: Gather the Necessary Items

Step 1 Gather the Necessary Items

First, you should check if you have got all the necessary things or not; if you don’t, you must bring them.

You must get paint, plastic objects, a brush, sand, primers, and other items. Please ensure that you haven’t missed anything to bring.

Step 2: Clean the Plastic Well

Step 2 Clean the Plastic Well

It is essential to clean the surface before you start to paint the plastic item because if any oil, grease, or dirt is left on them, your paint won’t stick.

That’s why you should check if there’s anything on the object and what you should use if anything is removable.

For instance, you have to use either a dry or damp cloth or a brush to clean the plastic, but don’t be too hard on it. Otherwise, the plastic thing may break or bend due to excessive pressure.

Step 3: Make the Surface Rough

Step 3 Make the Surface Rough

You have to rub the plastic to make it rough, but don’t make the surface excessive sharp to make it risky for yourself.

Anyway, it would help if you used such tools that make your plastic item rough; it’s necessary to ensure that the plastic is dirt-free.

Step 4: Prime the Plastic

Step 4 Prime the Plastic

To make the paint set well on the plastic, it will be better to prime it well before applying a paint coat. Please remember that the primer coat should be thin to dry quickly; you can use oil paint.

Moreover, enamel can also be a good option; you can either brush or spray the layer. Let the primer dry for some time before you start painting over it; otherwise, your paint will spoil.

Step 5: Paint the Plastic Thing with Acrylic

Step 5 Paint the Plastic Thing with Acrylic

Now, the main step where you need to be most careful has come, and you should apply 1-2 coats of the paint quite carefully.

You can also use either brush or spray, but we will suggest the brush if your workpiece is small.

Anyway, you can take an expert’s suggestions about the acrylic paints that are good for plastic. After finishing your painting, you must put the workpieces to dry well.

Step 6: Sealing Paint on Plastic

Step 6 Sealing Paint on Plastic

The final step of completing the acrylic paint on plastic is to secure it, and sealing the paint is the best option. You can use any sealer that suits plastic well and complete your painting within a short time.

You can see that painting on plastic may seem to be tough, but it’s not. It won’t take a lot of hours to paint plastic with acrylic paints.

If you have that little time and sufficient creativity, you can start making plastic items and paint them.

How Do I Protect My Acrylic Painting?

How Do I Protect My Acrylic Painting

Acrylic painting is a beautiful and delicate medium. However, with the right precautions, it can be used safely and successfully. When painting acrylics on plastic, there are a variety of ways to seal the painting. Some of these methods have their own benefits and drawbacks, so it’s important to choose the one that best suits your needs. Always use caution when working with acrylics – if something goes wrong, it’s not fun trying to fix it yourself! If you’re painting acrylics on plastic, it’s important to seal the painting so that it doesn’t fade over time. Talk to your local art store about the best way to protect your painting – they might have a special solution for you!

You Can Choose To Apply Polyurethane For Durability:

Acrylic paint is a great way to add a pop of color to your projects, but it can be a pain to seal it on plastic. So, which method should you choose? There are pros and cons to both, so it ultimately comes down to what you’re looking for. If you’re looking for a durable finish, use Polyurethane. However, if you’re okay with a little more work, you can apply acrylic paint without Polyurethane. Keep in mind that this will create a less-durable finish, so make sure it’s something you’re okay with. Finally, if you’re just looking for a quick and easy way to seal acrylic paint on plastic, choose the method that works best for you!

How Do You Seal Acrylic Paint On A Plastic Model?

How Do You Seal Acrylic Paint On A Plastic Model

Acrylic paint is an amazing process to add a touch of realism to your plastic models. However, like any other paint, it can quickly ruin plastic if not properly sealed. Follow these easy steps:

1. If you’re applying multiple coats of paint, wait between each coat until the previous one has hardened before applying the next one.

2. Apply acrylic paint using a brush or roller, being sure to evenly coat the surface.

3. When your project is complete, lightly sand any areas that are too shiny or wet, looking for an even finish.

4. Allow the paint to dry for minimum of two hours before sealing with a clear sealant.

Why Is It Necessary to Seal Acrylic Paint on Plastic?

Why Is It Necessary to Seal Acrylic Paint on Plastic

Plastic is not a natural item or has natural atoms that can directly attach to paints; it’s not like heavy items. Plastics are mostly harmful and have quite different characteristics, making them indifferent to paints.

No matter which paint you use (watercolor, oil paint, or heavier ones), it isn’t easy to paint one plastic because it doesn’t stick with the surface.

Sometimes, you may find accurate paint for plastic-made things; still, the color is not secured without a protective layer.

That’s when you will need a sealer because sealing a surface with proper liquids can protect the upper area from getting spoiled.

Moreover, a high-quality sealant can prevent extra dirt, stains, and damage; plastic also gets protection.

What Things You Will Need to Seal Acrylic Paint on Plastic?

What Things You Will Need to Seal Acrylic Paint on Plastic

You will need some definite items to seal the acrylic paint that you have put on the plastic thing; let’s see what the necessary materials and tools are.



A perfect sealant for your acrylic paint safe for plastic use; they come in different sizes. The sealing liquids are mostly available in spray bottles and rarely available in gallons.

Painter Tapes

Painter Tapes

 If there is an area on the plastic that you haven’t painted or don’t want to paint, you should cover the area with painter’s tape.

Don’t worry because painter tapes are specially made to cover and protect; they won’t damage the thin plastic.

Sand Paper

Sand Paper

You may get confused about using sandpapers using before or after painting and sealing. Please remember that you need sands to roughen the area before painting, but use the sandpaper while sealing so that the paint seals well.



Suppose you haven’t found the spray bottle of sealant and using a bucket instead. That’s when you will need brushes of different sizes. The brush will help you to apply the coats of sealant in the correct proportion.

How to Seal Acrylic Paint on Plastic?

How to Seal Acrylic Paint on Plastic 1

Let’s see the guidelines to properly seal the acrylic paint on plastic; it will help you secure the paint from smudge.

Step 1: Bring the Necessary Things

Step 1 Bring the Necessary Things

First, you must grab all the things you need already mentioned above; please don’t miss anything. Another thing you should remember is that it would be better to choose aerosol sprays for sealing.

Step 2: Take Some Necessary Safety Measures

Step 2 Clean the Plastic Well 1

The chemicals that work as sealing agents shouldn’t go through your eyes or nose; that’s why you must wear glasses and a mask. Moreover, you should also wear gloves so that the chemicals don’t contact your skin.

The safety measure indicates personal hygiene or safety, but a worker should protect the other things nearby.

For instance, you can’t spoil the furniture, personal belongings, etc., while painting or spraying the sealer. That’s why it’s better to cover some areas either with old cloth or paper.

Step 3: Set the Painted Plastic

Step 3 Set the Painted Plastic

Another important thing you must do is setting the plastic item in a plain area; otherwise, it may displace while sealing.

You must also ensure the distance between the spray sealant and the painted plastic thing; the distance should be 30 centimeters.

Step 4: Sanding the Painted Plastic

Step 4 Sanding the Painted Plastic

It’s an optional step because sanding again before sealing the plastic acrylic paint is always not necessary.

If you see that the plastic has been properly primed and the color has adjusted well, you don’t need to sand before sealing.

Step 5: Start Spraying the Sealer

Step 5 Start Spraying the Sealer

It would help if you immediately started spraying the sealing layer once you’re ready and spray a thin coat first all over the paint.

Anyway, once you have coated a layer, you should let it dry and check carefully if there’s any place left.

Moreover, it would help if you considered the paint and sealant’s characteristics, and sometimes, the paint requires a second layer. If you feel so, you should properly spray a second thin layer of the sealer.

Once you’re done spraying the sealing agent, you have to keep the workpiece safe and ensure none touches it. Moreover, make sure that the plastic doesn’t get any stains, water, or dirt.

There you can see that sealing plastic is one of the easiest protecting ways among all sealing processes. Follow these 5-steps, and you don’t have to worry further about your paint’s lasting on a plastic surface.

What Are the Perfect Paint and Sealant for Plastic?

What Are the Perfect Paint and Sealant for Plastic

If you choose the best product and raw materials, you will get the best results; therefore, it’s necessary to check the suitable paints for plastic.

  • Krylon Fusion Aerosol Spray Paint for Plastic has been the best one overall in the market.
  • Krylon Fusion All-in-one Acrylic Spray Paint, which is known as the most budget-friendly paint for plastic.
  • Rust-Oleum Spray Paint for Plastic, especially those items which are outdoor.
  • Iris and Olivia Plastic Marker Set, the paint which is suitable to attach with plastic toys.
  • Rust-Oleum Painter’s Touch 2× Ultra Cover for multipurpose, including a thick plastic paint.

That’s not all, you can find other options, but these are the top-selling; you can choose anyone among them. You may already know that Rust-Oleum is the best brand for acrylic paint among all if you have used it before.

You must also know the perfect sealing agent for plastic and those set well; let’s see the list. Please remember that the sealing agents depend much on sealing methods; there is a huge variety.

  • Polycrylic is a sealing liquid for acrylic paint; it can be either spray or roll on. That protects the paint from getting faded or yellowish.
  • Polyurethane can be another option, and it’s even better than the previous one because it’s more durable. Polyurethane is a water-based sealant that is more protective for acrylic paints on plastic.
  • Acrylic varnish can be an option to permanently seal the paint on the plastic, especially outdoor ones. Many people have confused about if they can apply varnish on plastic or not; they surely can.
  • Mod podge is another item you can use; it’s not transparent and comes in a whitish complexion. Moreover, it’s not a sealing agent but a glue; that’s why you can’t spray it.

You can coat a light layer to stick the paint permanently besides preventing streak or something like. But the glue can decrease the outlook of your plastic artwork, which is why experts forbade using this.

Tips That You Need to Follow While Painting and Sealing a Plastic

Tips That You Need to Follow While Painting and Sealing a Plastic

An expert in a field gathers many experiences during his long-time work with a particular thing. That’s why taking their advice before starting work is equally important for finishing it properly.

Let’s see the tips from experts that you can follow in painting and sealing plastic with acrylic paint.

  • You should always target plastic items you don’t want to use anymore and make something exciting. Thus, you don’t have to throw them into the trash, and you can use them by recycling.
  • Sometimes you may not find sandpapers around you; that’s when you may count on the alternative sand liquid.
  • Please choose acrylic paints that are especially appropriate for plastic; otherwise, they may not adjust well.
  • You shouldn’t depend completely on spray bottles when painting small objects and keep a brush nearby.
  • Please never start working on the next layer while painting or sealing before the previous one dries.

These tips are not hard to follow, and these can be extra helpful sometimes; it would be better to keep those in mind while working.

Frequently Asked Questions

Which Paint Stick to Poly Plastic Easily?

Acrylic paints mixed with polyethylene is a good choice for poly plastic because they stick together well. You may look for other paint types as well.

What Is the Mandatory Step to Get Paints Stick to Plastic?

You will need and can’t skip the step to prime the plastic surface with a primer before painting. Once you do that, there’s no chance of the paint not setting on the plastic.

What Is the Best Primer for Plastic?

The primer from Rust-Oleum is the best one for plastic before painting; you have to use and dry the layer before spraying or rolling paint.

Can You Use Hairsprays to Secure Paint?

Hairspray is not a good choice when securing paint on plastic because it doesn’t seal the paint well. Moreover, the hairspray is nothing permanent and protects your paint on plastic.

How Do I Avoid Damaging My Plastic When Using A Sealer?

To avoid damaging plastic when using a sealer, first, use a plastic primer to help the sealer adhere to the plastic. Second, use a gentle, non-toxic sealer that is specifically designed for plastic. Finally, be sure to sand and finish the plastic surface with a high-quality sealant to ensure a long-lasting seal.

What Are Some Of The Best Methods For Sealing Acrylic Paint On Plastic?

Acrylic paint can be sealed with a variety of sealants, including acrylic sealant, varnish, and silicon sealant.

How Often Should I Reapply The Sealer To My Plastic Pieces To Maintain Their Finish?

It is best practice to reapply the sealer every few months or whenever the finish appears dull.


Now that you know all about sealing acrylic paint on plastic, you can easily do artwork with them without any fear. Moreover, it consumes less time than sealing flagstone; you have to be a little careful only.

You can also check some YouTube tutorials to have a visual experience of sealing acrylic paint. The best thing would be practicing yourself because that would make you more experienced. I hope now you know how to seal acrylic paint on plastic.

Sealing acrylic paint on plastic is an important step for keeping your paint looking new and preventing it from fading or peeling. There are a variety of sealers that you can use to achieve the desired results, and all of them work best when applied in a thin layer.

Make sure to read the instructions carefully before starting to seal your paint so that you don’t apply too much sealer and ruin your plastic surface. Finally, protect your painting with a coat of Polyurethane paint for extra durability.

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