How To Remove Dried Polyurethane From A Paintbrush?

As an Amazon Associate, I earn from qualifying purchases

It always feels satisfying to complete your DIY painting projects on time. But it feels disheartening after seeing the mess you have created while accomplishing your painting tasks. Now, you must have experienced the pain of cleaning or taking off the dried paint from your paintbrush. Getting off anything from a dried paintbrush sounds too complicated and tedious to you. Especially when you have to remove dried Polyurethane from a paintbrush.

I this guide, we’ll tell you about the easiest methods on “How to remove dried polyurethane from a paintbrush?”

How To Remove Dried Polyurethane From A Paintbrush?

Understanding the Basics of Polyurethane

Before we move further, it is important to understand the types of Polyurethane you are aiming to remove completely. Polyurethane is an organic polymer or layer that protects the surfaces from direct sunlight, heat, or other sources when applied. You can use Polyurethane on various surfaces such as sealants, varnishes, bookcases, bedding, and other protective coatings.

Due to the dynamic nature of Polyurethane, it dries faster once you apply it in liquid form. Also, it doesn’t go back to its original condition even when heated.

Generally, Polyurethane is categorized into two types:

  • Water-Based Polyurethane
  • Oil-Based Polyurethane

Let us explain the two types of Polyurethane in detail:

Water-Based Polyurethane

Water-based Polyurethane has gained momentum and massive popularity over the years. The qualities like low odor, no toxicity, environmental friendliness, and ease of use make it the desirable Polyurethane for many. Plus, you can take off the Polyurethane using tap water only.

Oil-Based Polyurethane

Unlike water-based Polyurethane, oil-based Polyurethane is slightly durable, cheaper, and usually complex in nature. You need to have a chemical in case you’re cleaning the oil-based Polyurethane smoothly. You must keep your windows and doors open for a few days after applying Oil-Based Polyurethane. Because it produces bothersome odors that might settle into your curtains, cover sheets, and clothing.

On the flip side, the Polyurethane still takes longer with some efforts to remove from the paintbrush. However, you can effortlessly remove Polyurethane from your paintbrush using the right methods and procedures.

Now, you must be curious to know about how to remove dried Polyurethane from a paintbrush?.

Well, the excellent news is there are still some practical ways that can help you clean off hard-to-remove Polyurethane from the paintbrush easily.

How to Remove Water-Based Polyurethane from Paint Brush?

Before beginning the process of cleaning the water-based Polyurethane from a paintbrush, you need essential tools. And these are:

  • A pair of gloves
  • Cups (Two or three)
  • Tap water
  • Dish soap

How to Start the Cleaning Process?

  • Simply submerge the paintbrush in the water
  • Rinse the paintbrush thoroughly
  • Take out the brush and soak again in freshwater
  • Repeat the process until the water-based Polyurethane loosens itself

How to Clean Oil-Based Polyurethane from Paint Brush?

Taking off oil-based Polyurethane is a bit complicated and needs more effort than water-based Polyurethane. But, you still remove the Polyurethane using good-quality paint thinner or white spirit. Here are the steps that you should follow to achieve the desired results:

  • Just our right quantity of mineral spirit or paint thinner in the cup
  • Dip the paintbrush directly in the solution and wait for a few minutes
  • Turn the sides of the brush to soften the dried part
  • Wait for only 15 minutes or even less
  • Massage gently if the Polyurethane is too dry or hard
  • Take out the brush and rinse the same using lukewarm water
  • Allow the paintbrush to dry using a towel or rag

It is recommended to wear protective gloves and a dust mask to protect yourself as well as the surroundings. The toxicity of the oil-based Polyurethane and the chemicals used might get you in trouble. So, use the necessary tools to remove the oil-based Polyurethane from the paintbrush.

How to Clean Polyurethane Like a Professional?

On average, a good-quality paintbrush can last up to 4 to 5 years and even more if maintained properly. To protect your investment, maximize the performance, and keep the paintbrush in shape, you must follow the proper cleaning methods before, during, or after every use. Having said that, let us take you through a comprehensive guide where you will learn about How to remove dried Polyurethane from a paintbrush?

Which is the Best Way to Use Comb for Cleaning Polyurethane?

Have you ever thought of using a comb to clean Polyurethane from a paintbrush like a pro? If not, then we would suggest you take advantage of the comb to take out varnish or paint from the bristles. Here is the cleaning thorough cleaning method:

  • Hold the paintbrush and insert comb gently into the bristles
  • Apply the right stoke motion and speed for the varnish, paint, and residue to come out effortlessly
  • Move the comb in different directions for speeding up the task

Does Using Turpentine Make the Polyurethane Go Away?

Turpentine is another effective method that can magically enhance the quality of your paintbrush. Using a turpentine solution not only cleans the bristles professionally but also makes your paintbrush look appealing.

  • Pour the right amount of turpentine into a plastic container
  • Immerse the brush into the solution
  • Put little pressure on both sides of the bristles and the brush alike
  • Keep doing that until the paint is completely removed
  • Take out the brush and wash the brush using soap water
  • Squeeze the excess water using a paper towel

You May also like: how to use paint thinner to clean brushes.

Is Mineral Spirits the Better Option?

Mineral spirits have potentially hazardous qualities and come with a strong odor that can make things worse. So, use protective masks, rubber-made hand gloves, and goggles before beginning the cleaning process.

  • Fill the plastic container halfway with mineral spirit
  • Soak the paintbrush into the solution
  • Swish the brush around for two to three minutes
  • Clean the brush using tap water and dish soap

How to Clean Polyurethane from the Paint Brush with Fabric Softener?

A fabric softener is an excellent way for cleaning water-based paints only and not oil-based paints. For cleaning dried Polyurethane brushed, you need to:

  • Take a bucket off gallon warm water
  • Add a cup of fabric softener into it
  • Mix the two solutions thoroughly
  • Drop your paintbrush into the liquid
  • Stir your paintbrush vigorously every minute until the color lift off naturally
  • Lift the paintbrush from the water and let it dry

Is Baby Oil Suitable for the Polyurethane Cleaning Process?

Who would have imagined that baby oil could help you clean the unattractive Polyurethane from the paintbrush? Thankfully, baby oil also acts as a cleaning agent that can positively remove dried paint from the brush.

  • Just like mineral spirits, you need to pour baby oil into the container
  • Drop the paintbrush in
  • Allow the baby oil to sit into the brush for a few minutes
  • After that, take out the brush and wash out the left oil using dish soap water
  • Dry the brush using a rag or paper towel

Can I Use Dish Soap Instead of Toxic Chemicals?

Dish soap is supposed to be one of the primary ingredients available in every household. For those who are worrying about the harmful effects of using chemicals and having sensitive skin, this is the safest solution you can opt for. To clean the delicate paintbrush bristles:

  • Take a small amount of dish soap in a container
  • Dip the paintbrush to remove the oil-based Polyurethane from the bush
  • Wait for a few minutes
  • Take the brush out and massage thoroughly
  • Now, raise the brush using lukewarm water
  • Keep outside to air dry

Can I Use White Vinegar for Taking Off Polyurethane from the Brush?

If you’re afraid of using harsh chemicals, then white vinegar might work in your favor. To restore the condition of your dried paintbrush, use the following methods:

  • Pour the right quantity of white vinegar in a wider pot or container
  • Please bring it to boil or a little simmer
  • After heating up, dip the paintbrush in the white vinegar
  • Let the brush soak for around 20 minutes or even more, depending on the hardness and severity of the Polyurethane
  • Next, take out the brush and wash it using warm and soapy water
  • Use the comb to remove the extra resize or particles from the paintbrush

Can I Use Acetone for Making the Bristles Look Polyurethane-free?

The acetone has the finest quality and comes with solvent strength that can clean off dried-up Polyurethane from the brush magically. Simply soak the paintbrush in the acetone-based solution. Please wait for the paint to come off and rinse it using soap water. Repeat the procedure until the bristles get soft.

In most cases, a professional painter uses a paint thinner before using acetone to clean out the thinner traces from the brush. After that, you can rise off the varnish using soap and water to remove the acetone. Why soap? Because the soap acts as a bristle softener to make the bristles look cleaner, softer, and ready to use again.

No matter whether you are a professional painter or a beginner, you aim to preserve the paintbrush quality for a longer duration. With these practical methods, you can quickly keep your paintbrush neat, clean, and away from Polyurethane.

How to Store Paint Brush for Future Use?

Cleaning unnecessary polyurethane is as important as storing them in the right safe place. After you have done applying the right techniques, it is time to use the proper storing techniques for your brush longevity. Here are the things you can do to maximize the efficiency and longevity of your brush with ease:

  • Always store your paintbrush carefully in a plastic bag or wrap after every use
  • Make sure to keep the neck of the brush airtight using masking tape in a cool area or refrigerator to avoid moisture
  • After completing your painting-related project, do a practice of using the comb to keep the shapeless bristles in shape
  • Hanging the brush vertically with the bristles facing downwards can make a great difference

There is no greater satisfaction than taking off the toughest as well as dried Polyurethane from brush professionally. This joy can reach its peak while giving you optimal results if you apply the right tips and techniques.

It is now crystal clear that cleaning a polyurethane brush isn’t all that difficult. All you need is to try these easy-to-follow methods to make your brush look in shape and order. The most common thing you can do is use water, dish soap or paint thinner, depending on the type of Polyurethane you used, and comfortably water to rinse it off.

The key is to keep your brush polyurethane-free and try any of the above steps. Trust me, your brush will last forever while giving you the performance that you have never imagined before.

Key Takeaways

It will be much safer to restore your brushes in the upcoming years. Now that you know the procedure for removing Polyurethane,

Hence, follow these painting tips on Removing dried Polyurethane from a paintbrush now. We hope that you can clean your brushes smartly after completing your every DIY project.

Leave a Comment