How To Remove Epoxy From Glass Without Scratching the Surface?

  • Resin Art 101
  • Posted by: carson-rutz
  • Oct 23, 2023

Epoxy adhesives, known for their superior bonding ability, are commonly used in various industrial and DIY projects. However, when accidentally stuck to a glass surface, removing it can be a difficult task. Below is a detailed explanation of how to remove epoxy from glass without causing any damage or unsightly scratches. Let's do it.

1. How to Remove Wet Epoxy From Glass?

Necessary equipment to remove epoxy from glass (source: amazon)
Necessary equipment to remove epoxy from glass (source: amazon)

Removing wet epoxy from glass can be a difficult task, but with the right method, it can be done. To remove it, you need to prepare the following items:

  • Paper towel or cloth: Use a clean cloth or paper towel to absorb the remover solution as well as wipe off any remaining debris or epoxy stains.
  • Acetone or nail polish remover: These solutions can be used to remove epoxy. Onyx Professional, Cutex, or any type of pure acetone can be used to soften epoxy.
  • A heat gun or hair dryer: Used to create heat to help soften cured epoxy
  • A razor blade or sharp putty knife: Used to gently scrape off the epoxy layer.
  • Glass cleaner: Used to clean glass surfaces after removing epoxy

Step 1: Put on personal protective equipment

Put on personal protective equipment (source: open who)
Put on personal protective equipment (source: open who)

Before you start working with acetone, which is a flammable and toxic solvent, you should put on some personal protective equipment to protect yourself from harm. You will need gloves, goggles, and a mask to prevent skin contact, eye irritation, and inhalation of acetone vapors. You should also wear long sleeves and pants to minimize direct skin contact.

Step 2: Prepare a ventilated area

Airy and neat working area (source: pinterest)
Airy and neat working area (source: pinterest)

Acetone has a strong and unpleasant odor that can cause headaches, nausea, and dizziness if inhaled for too long. Therefore, you should work in a well-ventilated area, such as outdoors or near an open window or door. You should also keep away any sources of heat or flame, such as candles, stoves, or lighters, as acetone is highly flammable and can catch fire easily.

In case you have to work indoors, try to find a well-ventilated room with as little furniture as possible. Opening the windows will help to circulate the air and remove any toxic fumes or unpleasant odors. If possible, cover surrounding areas with barrier material to avoid exposure to chemicals.

Step 3: Test a Small Area

Test acetone on a small area (source: furniture choice)
Test acetone on a small area (source: furniture choice)

Before you apply acetone to the epoxy-covered glass surface, you should test a small area first to make sure it does not damage the glass. Acetone is usually safe to use on glass, but some types of glass may have coatings or finishes that can react with acetone and cause discoloration or cracking.

You can use alcohol, nail polish remover, spray lubricant, vinegar, or lighter fluid to remove adhesive from glass. To test a small area, rub a little acetone on a rag or cloth and gently rub it on an inconspicuous spot of the glass. Wait a few minutes and check for any damage. Try each type to find the most effective one for you.

Step 4: Soak a paper towel or cloth in acetone

Soak a paper towel or cloth in acetone (source: youtube)
Soak a paper towel or cloth in acetone (source: youtube)

Once you've found the best epoxy remover for your glass, dampen a soft cloth with it. To avoid spilling, you can place the cloth in a tray, then drip the solution onto it and squeeze it gently to help it penetrate all the corners.

Step 5: Place the towel on the epoxy-covered surface

Place the towel on the epoxy-covered surface (source: murray glass)
Place the towel on the epoxy-covered surface (source: murray glass)

Next, gently place the soaked towel all over the epoxy-coated surface. Make sure the paper towel or cloth covers the entire area of epoxy that you want to remove.

After 15 minutes, carefully lift a corner of the towel to check if the epoxy has begun to loosen. If not, you should continue to add more liquid and continue coating until the epoxy layer softens.

Step 6: Gently Scrape

Scrape off the softened epoxy (source: youtube)
Scrape off the softened epoxy (source: youtube)

Once it has softened, you can proceed to remove it. Remove the paper towel and use a razor to scrape off the softened epoxy. You should only use light pressure, shave slowly and hold the scraper at a small angle to avoid scratching the glass.

*Note: Use a new sharp razor. Duller razors may have small jagged edges that can scratch. Second, lay the razor flat on the surface and try to get it under the glue. Don't press hard on the glass. 

Step 7: Repeat if Necessary

Depending on how much epoxy there is on the glass surface and how thick it is, you may need to repeat steps 4 to 6 several times until all of it is removed. Be patient and do not rush the process as you may damage the glass or hurt yourself.

Step 8: Clean the Glass

Clean the glass surface (source: youtube) - how to remove epoxy from glass
clean the glass surface (source: youtube)

After removing the epoxy paint layer, drop the glass cleaning solution on a clean towel or glass cleaning paper and then gently wipe it on the glass surface to clean and completely remove remaining epoxy residue.

If you don't have a glass cleaner, a little warm water combined with mild soap or a 50/50 mixture of vinegar and water is also a great glass cleaner. Make sure there are no traces or epoxy residue left on the glass surface. Then, use a clean cloth to wipe or let the glass surface dry naturally.

2. How to Remove Cured Epoxy From Glass?

Epoxy initially comes in a liquid state and is easily removed. However, when cured, epoxy becomes an extremely strong and durable adhesive material, making it very difficult to remove from glass. To remove hard epoxy from the glass surface, there are two common methods: using a Heat Gun or hair dryer to soften the epoxy or using ice to freeze it.

Method 1: Using Heat Gun or hair dryer to remove epoxy

Using heat gun to soften epoxy (source: ebay)
Using heat gun to soften epoxy (source: ebay)

Using a heat gun or hair dryer is an effective method to soften and remove cured epoxy from the surface as heat can break down the bonds between the epoxy molecules and reduce its strength and adhesion To perform this method you need: heat gun or hair dryer, paper towel, acetone, a razor blade or sharp putty knife and glass cleaner. Here are 5 steps to follow:

  • Step 1: Turn on the heat gun or hair dryer on a low to medium setting so as not to overheat the glass or crack it due to high temperature fluctuations. 
  • Step 2: Hold it about 2 - 3 inches away from the cured epoxy and gently heat the area for 1 - 2 minutes to soften.
  • Step 3: Use a razor or putty knife to gently remove it. Be careful not to gouge or damage the underlying glass surface.
  • Step 4: If there are still areas where the hard epoxy remains, repeat the heat process to continue softening and scraping until all the epoxy is removed. 
  • Step 5: After removing the epoxy layer, clean the surface with a mild solvent such as alcohol and a mixture of water and soap to remove residue.

This method is especially useful for flat or slightly curved surfaces. For complex or complicated shapes, this technique is relatively difficult to perform and does not guarantee complete removal.

*Note: Always keep the heat gun or dryer in motion to avoid causing the glass to crack or break.

Method 2: Freezing the epoxy

Using ice to frozen epoxy for removal (source: youtube)
Using ice to frozen epoxy for removal (source: youtube)

Another way to remove cured epoxy from glass is to use cold to harden it and make it brittle. Cold can shrink the epoxy molecules and cause them to crack and detach from the glass surface. To use this method, you will need a freezer bag, ice cubes, and a plastic scraper. Here are 4 steps to follow:

  • Step 1: Press an ice cube into the glue to freeze the adhesive. Depending on the size of the epoxy area, you can customize the cold compress time. But make sure it is completely frozen before removing it.
  • Step 2: Once the glue sets, gently pry or scrape the epoxy layer with a soft-bladed knife. Be careful not to damage the surface below. 
  • Step 3: If the epoxy is not completely removed, repeat the freezing process and continue scraping until the glass surface is smooth. 
  • Step 4: Clean the surface with rubbing alcohol or soapy water to remove any remaining residue.

Remember that removing epoxy can take time and patience. If the epoxy is very stubborn, you may consider seeking professional help to avoid damaging the glass surface.

*Note: If your glasses are small, do not put them in the freezer because they will crack or break.

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3. 5 safety precautions when removing epoxy from glass

5 safety precautions when removing epoxy from glass (source: urban print)
5 safety precautions when removing epoxy from glass (source: urban print)

When removing epoxy from glass, it's crucial to follow safety precautions to protect yourself and ensure a successful process. Here are five important safety measures to take:

  • Avoid Open Flames: Acetone and isopropyl alcohol and related solvents are highly flammable. Therefore, make sure to work in a well-ventilated area, away from open flames, sparks or any potential sources of ignition.
  • Avoid Ingestion: Acetone or isopropyl alcohol products and solvents are not for drinking. Always wash your hands thoroughly after handling epoxy and avoid touching your face or mouth while working.
  • Avoid Abrasive Tools: While removing epoxy from glass, do not use abrasive tools that may scratch the glass surface. Be gentle when scraping and choose tools with soft blades like a plastic putty knife or an old credit card to avoid damaging the glass.
  • Work Carefully: Take your time and work slowly and carefully to avoid any accidents or unintended damage to the glass. Apply gentle pressure as too much pressure may crack or break the glass.
  • Children and Pets: Epoxy and some of its solvents may be harmful if swallowed or in contact with skin. Therefore, keep children and pets away from the area where you are working with chemicals.

By adhering to these safety measures, you can proficiently eliminate epoxy from glass while mitigating any potential hazards to your well-being, the surroundings, and the integrity of the glass surface.


Surely now you know how to remove epoxy from glass. These techniques are worth learning. With just a few simple tools and a little time, you can restore your glass to shine like new. This is a perfect finish, no scratches!

4. FAQs

How many methods are there to remove epoxy from glass?

There are various techniques available for removing epoxy from glass, such as utilizing acetone, isopropyl alcohol, applying heat, or even resorting to freezing. The selection of methods relies on the specific type of epoxy and individual preferences.

Can I use water and soap to remove epoxy from glass?

Water and soap may help clean the surface but are unlikely to effectively remove epoxy from glass. You should use specific epoxy removal methods, such as using acetone, isopropyl alcohol, heat or freezing for more effective results.

Can I use vinegar to remove epoxy from glass?

Vinegar may have some mild cleaning properties but is not as effective as acetone or isopropyl alcohol in removing epoxy from glass. Stronger solvents are often more effective for this purpose.

How long does it take to remove epoxy from glass?

Depending on the type, condition and thickness of the epoxy as well as the skill of the operator, the execution time will vary. According to estimates, it can take anywhere from a few minutes to several hours to remove epoxy from glass.