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Epoxy is a permanent adhesive used on a variety of materials, from plastics to metals. Once the epoxy glue has hardened, removing the glue will be quite complicated. The initial state of epoxy is liquid. When mixed, the temperature of this chemical will rise until the glue begins to cool and harden. You can remove epoxy by returning it to a liquid or at least gel form that can be scraped off the surface of the material. Removing epoxy glue is also relatively easy, as long as you take safety measures and be patient.
Steps
Use heat to remove glue
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Wear gloves, goggles and a mask. When you heat epoxy glue, gases are produced that are harmful to the eyes. Don’t just wear regular eyeglasses. You need goggles that cover your eyes completely, are worn close to your face, and have no openings for air to get in. Similarly, you should also wear rubber gloves, which should be at least 7.5 cm long above the wrist. If possible, you should look for gloves that are elastic so that air cannot get in. Finally, wear a simple cloth mask to protect your lungs. [1] X Research Source
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Wear clothing that covers the skin. Look for tight pants and a long-sleeve shirt that’s close to your body. If it’s a button-down shirt, check to make sure all the buttons are secure. This is to protect the skin from reacting with gases that may evaporate when the epoxy is heated.
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Soak the adhesive surface in acetone. If epoxy sticks to wood, soak the glued area in acetone for 1 hour or more before heating to soften the epoxy. You can either soak the item to be removed in acetone or put it on the epoxy stain. Acetone can only penetrate the surface of the wood. [2] X Research Source
- When you treat epoxy on plastic, marble, cement, vinyl or metal materials, the chemicals will react on the surface rather than seep into as many layers as they do with wood.
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Point the hot air gun at the epoxy glue stain for a few minutes. The temperature of epoxy will rise to over 90 degrees Celsius, which is the softening point of epoxy. Hold the hot air gun back and forth instead of leaving it in one spot for several minutes. If you are working with epoxy adhesives on plastic or wood surfaces, care should be taken to avoid excessive heating resulting in a fire. [3] X Research Sources
- Instead of using a hot air gun, you can use a soldering iron. Once the soldering iron is hot, touch the tip of the torch to the epoxy to soften the glue. [4] X Research Sources
- With epoxy glue on the object, you can place the object on the hotplate. The hob works similarly to the hot air gun and is more commonly available.
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Heat small portions. Don’t heat the entire epoxy area at once, as you won’t be able to maintain the epoxy’s temperature long enough to cure. Instead, do each section with a length of about 5-7.5 cm. Once you’ve completed a section, move on to the next section. This will make it easier for you to scrape with the edge of the glue peeled off. [5] X Research Sources
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Scrape off the hot epoxy glue. Use a sturdy plastic scraper to remove the epoxy glue from the surface of the material. In case the heat hasn’t heated up all of the epoxy, keep reheating and scraping until the glue is gone. [6] X Research Sources
- Do not continue to heat the glue immediately after you have just finished heating an area. Wait a few minutes for the glue to cool before reheating; otherwise, you may cause the surface to catch fire.
- Do not use metal scrapers, as metal can cause damage to the surface of the material.
Freeze epoxy glue
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Wear gloves, goggles and a mask. You need goggles, glasses that fit close to the face and do not let air in, a pair of rubber gloves that are at least 7.5 cm long above the wrist. In addition, you also need to wear a cloth mask to avoid inhaling the gases generated from the refrigerant. You need to make sure that the refrigerant does not get into your eyes or get on your skin. Refrigerant is a dangerous chemical that can cause damage to the body. [7] X Research Sources
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Open windows and doors. This is to allow the air to circulate and expel the gases produced by the refrigerant. If you close the door, the gases will build up and will be very dangerous when you breathe in. When the air is circulating, you should put children and pets in a safe room and close the door to avoid breathing in toxic gases.
- Remember to turn off the air conditioner or heater so as not to draw exhaust gases into the room.
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Shake the refrigerant spray bottle. Refrigeration sprays are available in many brands at hardware stores. As with all sprayers, you need to shake the cooling spray before use, then hold the spray bottle about 30 cm from the surface you want to spray. Remember to hold it upright to prevent liquid from leaking.
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Spray refrigerant on epoxy glue. The refrigerant will quickly lower the temperature of anything it touches. The epoxy glue will solidify and become brittle. DO NOT put your hands near the area being sprayed, and be sure to put on sturdy gloves and goggles before spraying. If you have children or pets at home, do not let them near. [8] X Research Sources
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Break brittle epoxy glue. Use a plastic spatula or hammer to smash. Epoxy glue will be so cold that it turns into crystals and crumbles easily. After smashing the glue, you can sweep the debris into the trash can and dump it right away. You can use a vacuum cleaner to make sure to clean up the tiny debris left behind.
- Do not be too strong lest damage the surface of the material. If the glue doesn’t break off easily, try spraying more refrigerant to cool the glue even further.
Prepare chemicals to remove epoxy glue
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Wear safety glasses, safety gloves and a mask. The use of chemicals can be dangerous to the eyes, mouth and skin. You’ll need goggles that fit close to your face, with no openings to let air in. You also need to buy a pair of thick rubber gloves, at least 7.5 cm long above the wrist, and a cloth mask to avoid inhaling harmful gases. [9] X Research Source
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Open windows and doors. This step is extremely important because you need air to circulate. The airflow will push the evaporating chemicals out. If you keep your windows and doors closed, you may be inhaling harmful chemicals. [10] X Research Source
- Remember to turn off the air conditioner or heater so as not to draw toxic gases into the room.
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Choose an epoxy glue softener. It is also important that the chemical does not damage the surface it comes into contact with. Certain surfaces such as fabric, plastic or vinyl can be damaged by chemical exposure. Harsh chemicals can corrode material surfaces before softening the epoxy. [11] X Research Source
- Keep away from group 3 and 4 oxidants. These may ignite or ignite afterwards.
- Try using a paint thinner. The acetone in most paint solvents can soften hardened epoxy, but you need to soak the epoxy-coated surface for at least 1 hour.
- Use a commercial glue remover. These products are usually sold at hardware stores. [12] X Research Source
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Apply glue remover to the glue stain. You can either drop the glue remover directly onto the epoxy stain or pour a little on a towel and dab it on the stain. Either way, you need to use enough product to cover the glue. After you have applied the glue remover, you need to wait at least 1 hour before returning to work again. [13] X Research Source
- Do it little by little, only about 5-7.5 cm at a time. Chemicals will not work well over a large area.
- Remember to keep children and pets away when you are using glue remover.
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Mix cleaning solution. After the glue remover has soaked in for 1 hour, you will have to neutralize the chemical before scraping off the glue. Mix 2-3 tablespoons of sodium phosphate with 4 quarts of hot water in a bucket. You can pour it directly or use a sponge to soak it on the surface of the glue remover. Leave it on for at least 5 minutes to neutralize the chemical. [14] X Research Source
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Scrape the epoxy from the surface of the material. Use a sharp and sturdy plastic scraper to scrape off the glue. You should immediately put the glue that has just been scraped on a paper towel and throw it in the trash, the purpose is to avoid spilling chemicals around. If the epoxy is still tacky, you will have to soak the remaining glue in the chemical longer before trying to scrape it off. [15] X Research Source
- Once the glue has been scraped off, use a rag dipped in warm soapy water to clean the shaved surface. You probably don’t want chemicals all over the place, especially if there are children and pets in the house.
Advice
- Ask an expert for advice. There may be other home remedies that are also very effective at removing epoxy glue. The experts can also recommend you the best epoxy glue removal products on the market.
- You should try to remove the glue 2-3 times. Sometimes the method you are using will only work with the top layer of glue. Do this several times until all the glue layers are removed.
Warning
- Keep children and pets in a safe place while you use chemicals to remove epoxy.
- Let the air circulate naturally and turn off the air conditioner or heater. Avoid accumulation of gases produced by hazardous chemicals.
- Be sure to wear gloves, goggles, and a sturdy mask to ensure that your skin, mouth, or eyes are not exposed to the gases.
Things you need
- Heat gun
- Shaving tools
- Refrigeration spray
- Acetone or methylene chloride
- Sodium Phosphate
- Goggles
- Long rubber gloves
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wikiHow is a “wiki” site, which means that many of the articles here are written by multiple authors. To create this article, 10 people, some of whom are anonymous, have edited and improved the article over time.
There are 10 references cited in this article that you can view at the bottom of the page.
This article has been viewed 12,874 times.
Epoxy is a permanent adhesive used on a variety of materials, from plastics to metals. Once the epoxy glue has hardened, removing the glue will be quite complicated. The initial state of epoxy is liquid. When mixed, the temperature of this chemical will rise until the glue begins to cool and harden. You can remove epoxy by returning it to a liquid or at least gel form that can be scraped off the surface of the material. Removing epoxy glue is also relatively easy, as long as you take safety measures and be patient.
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