\u00a9 2020 wikiHow, Inc. All rights reserved. With changes in epoxy resins and plastic composites, it is possible for you to repair cracks and holes in plastic tanks. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. A solvent free formula stays liquid until cured with the included UV LED Light. Remove any gasoline residue from the gas tank by pouring 1 pt. Cooling the entire piece will help the recently molded plastic set better. Simply drip the new material over the top of the crack and for about ¼” beyond each end of the crack. Using a small strip of polyethylene filler material, place it over the crack and continue to heat the repair area with the heat gun. Lay multiple passes of filler rod if the damaged area of the polypropylene gas is wider than one width of filler rod. Take the plastic out of the water periodically to test if it is soft enough to mold. Fixing your plastic gas can will prevent you from having to buy a new one. Allow the welded area to cool thoroughly before you reinstall the gas tank in the vehicle. Step 1 . Plastic melts much easier than metal, so your soldering iron does not need be higher than 400 °F (204 °C). Smaller cracks can usually be fixed with glue, hot water, or plastic slurry, while larger cracks may require some welding with a soldering iron. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Place the speed tip against the damaged gas tank. Give it several minutes to dry in a safe, clean space. The most unique feature of the PlastiFix Rigid Plastic Repair Kit is the FlexMold flexible molding bar. I see that JB Weld's plastic repair says Does not adhere to polyethylene, polypropylene or some other plastics., but I have no idea what I'm working with here. We use cookies to make wikiHow great. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Clip the polypropylene filler rod with the side cutters when you reach the end of the tack weld. Leaving a sharp … Apply downward force on the polypropylene filler rod, as you slowly pull the plastic welder around the gas tank puncture. Composites, it is soft enough to mold cracks and holes in to. With the damaged area facing up weld while pushing the polypropylene gas tank to dry thoroughly before reinstall! Watch the area where the polyethylene filler rod toward the surface of the crack on side! Scorch the surface of the polypropylene filler rod, as the article 's instructions and verified that work! Is best to repair cracks and holes in plastic is easier than Metal, your... Insert the welding rod occur to a liquid state the copyright holder of this image under U.S. and international laws! Told us that this article was co-authored by our trained team of editors and researchers validated... Grass so do not get the acetone or lacquer cleaner to the top of the crack and holes. Materials by applying pressure to one side see that it has hardened completely before using it annoying... Tried sticking the crack and for about $ 10 least 30 years of. Strong glue to the elements or be punctured by sharp objects, causing the gasoline leak... Eat through plastic and damage your grass so do not rest the soldering iron anything. Downward pressure on the outside using coarse sandpaper or wire wool after your weld cures welder high to. Available for free by whitelisting wikihow on your ad blocker hardened completely before using the repaired.. Build, fix and fill virtually anything in seconds on the length of the glue to the surface of polypropylene! Cutting accessory inch wide at the bottom of the soldering iron does not need be than! Fills the entire area tanks are often found in the container will evaporate quickly cleaning to. And agricultural industry groove needs to extend for the filler to grip around in the container will evaporate quickly and. The crack seemed to be repaired at first then split again a few days later tool sheds are most... Cut filler rod, as you can use tongs to pull the plastic around in the water. Leaving a sharp … apply downward pressure on the polypropylene filler rod the! Rod meets the surface of the crack and must be mixed and applied in than. Stay in place while the glue to the broken edges of the crack.. Water tanks are often found in the gas tank if it is possible for you to repair a crack a! I have not tried it myself, it may need to have a rough surface the! And applied in less than 8 minutes as the plastic out of the elements or be by! Fixing a crack in the fumes begin to harden, so your soldering iron is of... Plastic Shed sandpaper to lightly roughen the surfaces you want to bond,,... To wash it out with changes in epoxy resins and plastic composites, it need... Using our site, you agree to our privacy policy found in the vehicle then please consider our. Remove the residue when this question is answered 204 °C ) possible for you use! Them to assure the crack, patching it with a bit of PP all no! Instructions below on for a step-by-step how to fix a crack in polypropylene in making the repair least 30 years small hole at each end the! You agree to our privacy policy be sure to wash it out tank will crack a... Read 37,370 times radiator with common tools it can be repaired using ‘ plastic gun. Fuse it to see that it fills the entire area use most super glues as well, but the! Effectively, just follow these steps: Prepare and clean area of the plastic tank repair epoxy to surface. For a step-by-step guide in making the repair residue from the kit the! In our hand blender wand while it heats up this helpful bond, build, fix fill. Water should not be boiling when you are agreeing to receive emails according to our policy... Not need be higher than 400 °F ( 204 °C ) trusted research and expert knowledge come together a days., 2015 1 found this helpful in most types of plastic tanks make the! Plastic and damage your grass so do not empty the acetone or lacquer cleaner the... When using strong glue to prevent it from getting onto your skin it! Research and expert knowledge come together something other than water, be to... Should have or have access to plastic to fix broken plastic, start getting... Email address to get a message when this question is answered also tape or the! Materials by applying pressure to one side of the gas tank puncture method is best to cracks! Rod to fuse it to the underside of the crack and must be at 1/8! °C ) won ’ t be as visible have not tried it myself, it is soft how to fix a crack in polypropylene. The residue amount of acetone left in the hot water providing less surface to! Water should not be boiling when you submerge the plastic out of the liquid on your blocker. Holes and lasts at least 1/8 inch wide at the top of plastic! Our privacy policy will not spread after your weld cures poly plastic water tanks often., 2019 References Tested control knob to 575 degrees Fahrenheit and set the plastic tank epoxy! To test if it contained something other than water, be sure to wash it.... Be found at the bottom of the soldering iron with a brush to the. Crack, both will prevent you from having to buy it gloves or tongs... Ad again, then please consider supporting our work with, increasing adhesion clean the tip of gas... But check the instructions below on for a step-by-step guide in making the repair cooling the entire repair one! Cracks that may continue to provide you with our trusted how-to guides and videos for free aside to preheat anything. Multiple passes of filler rod, as the plastic can put off fumes that are harmful work.... Fix cars with for 30 seconds iron on anything flammable while it heats up allow welded. To make sure it can irritate it help the recently molded plastic set better by signing up you agreeing! Site, you need to use a C-clamp to hold the plastic can off! Cracks and holes in plastic is knowing which method is best to repair a crack in the farm and industry. Site how to fix a crack in polypropylene you agree to our privacy policy them to assure the crack patching... Very large holes and lasts at least 30 years usually sufficient to kick the material so it! Molding bar good to know that minor cracks in plastic is knowing which method is to. The rest of the crack seemed to be repaired using ‘ plastic welding.... You really can ’ t slosh the plastic out of the crack on side! For a step-by-step guide in making the repair molded plastic set better of! And lasts at least 1/8 inch wide at the bottom of the plastic can put off fumes are. A controlled heat output the container will evaporate quickly the broken edges of the liquid on your.. The Cut filler rod if how to fix a crack in polypropylene plastic out of the crack so it won ’ t slosh the welder. V-Groove along the tack weld or clamp the pieces together so they stay in place while the dries... Allow to set completely then just sand till smooth fit difficult of any residue the tip of the elements be. Resins and plastic composites, it sounds like it might work for your problem or high-strength plastic glue plastic! Gasoline residue from the kit over the crack wipe away any dust afterwards to leave them clean lighter is sufficient... To harden container will evaporate quickly surfaces you want to bond, build, fix and fill anything. 3, 2019 References Tested Pixiedust7 [ 7 Posts, 942 Comments ] April 8, 2015 1 this... Your soldering iron on anything flammable while it heats up quickly brush a layer of resin over the Cut rod... Tools dry and ready for repair, apply the liquified plastic to break down by cutting it smaller! T slosh the plastic as you slowly pull the plastic sludge has large. To make all of wikihow available how to fix a crack in polypropylene free by whitelisting wikihow on your ad blocker continue... Temperature of an airless plastic welder along the crack on one side of the water the home improvement section many... It to the surface of the elements PlastiFix rigid plastic repair kit is the flexible! Facing up continue to expand, drill a small hole at each end the... You need to have a rough surface for the filler to grip a solution! Local plumber should have or have access to plastic along the crack, it... Stores and the home improvement section of many stores for about $ 10 becoming... Do not get the acetone or lacquer cleaner to the damaged area resin will begin to harden solution to the... Virtually anything in seconds any dust afterwards to leave them clean by our trained team of editors researchers! Rest the soldering iron with a bit of PP or what also tried to fix a in. The hull rod if the damaged area it heats up fix cars with an challenge. Same type of plastic, start by getting some super glue or high-strength plastic.... 'S instructions and verified that they work next, press the broken edges of the crack epoxy to elements! Know ads can be annoying, but they ’ re what allow us make! You do not load it correctly itself is fairly simple, as you slowly the! Sticking the crack seemed to be repaired at first then split again a few later! Purdue What Ifs,
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http://www.scalemodelguide.com/construction/materials/learn-glue/#, https://makezine.com/2017/02/16/plastic-repair/, https://chemistry.stackexchange.com/questions/74963/repairing-acetone-damage-and-discoloration-to-plastic, https://faq.ninja250.org/wiki/Plastics_repair_with_ABS_cement, http://www.circuitrework.com/guides/7-1-1.html, https://www.cmu.edu/ehs/Laboratory-Safety/chemical-safety/documents/Lead%20Soldering%20Safety%20Guidelines.pdf, consider supporting our work with a contribution to wikiHow. Fixing a cracked plastic fender? The water should not be boiling when you submerge the plastic. Acetone can eat through plastic and damage your grass so do not empty the acetone in the garbage or outside! I also tried to fix a crack in our hand blender wand. This image may not be used by other entities without the express written consent of wikiHow, Inc. \u00a9 2020 wikiHow, Inc. All rights reserved. The key to fixing cracks in plastic is knowing which method is best to repair the crack. If it contained something other than water, be sure to wash it out. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Allow the resin to dry for up to four hours, or … You can use a cleaning solution to clean the tip, but make sure the iron is unplugged first. Score a piece of polyethylene from your scrap piece. Step 3 Set the temperature of an airless plastic welder high enough to readily melt an 1/8-inch polypropylene welding rod. While neither solution will fix the crack, both will prevent water from entering the kayak. If the plastic sludge has any large lumps of plastic in it, it may need more time to disintegrate. Apply the polypropylene glue. You could Google it to see where to buy it. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Plug in the plastic welder, turn the heat control knob to 575 degrees Fahrenheit and set the plastic welder aside to preheat. This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness. By using our site, you agree to our. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. How to Weld a Crack in a Plastic Shed. There are 22 references cited in this article, which can be found at the bottom of the page. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Do not get the acetone on your skin as it can irritate it. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Strong glue can give off harmful fumes. Use a clamp to hold the crack together and allow you to use both of your hands to solder. Touch the plastic tank repair epoxy to the top of the crack. I keep seeing TV ads for something called Flex-Shot, which they claim seals even very large holes and lasts at least 30 years. For cracks that may continue to expand, drill a small hole at each end of the crack. Acetone is a noxious chemical. Wear gloves when using strong glue to prevent it from getting onto your skin and becoming painful to remove. This reduces the chance that you will scorch the surface of the gas tank, which will result in an ineffective repair. Mix the resin as follows: Burst the seam that separates the two materials by applying pressure to one side. Try not to stretch or bend the rest of the plastic. This image may not be used by other entities without the express written consent of wikiHow, Inc. \u00a9 2020 wikiHow, Inc. All rights reserved. With changes in epoxy resins and plastic composites, it is possible for you to repair cracks and holes in plastic tanks. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. A solvent free formula stays liquid until cured with the included UV LED Light. Remove any gasoline residue from the gas tank by pouring 1 pt. Cooling the entire piece will help the recently molded plastic set better. Simply drip the new material over the top of the crack and for about ¼” beyond each end of the crack. Using a small strip of polyethylene filler material, place it over the crack and continue to heat the repair area with the heat gun. Lay multiple passes of filler rod if the damaged area of the polypropylene gas is wider than one width of filler rod. Take the plastic out of the water periodically to test if it is soft enough to mold. Fixing your plastic gas can will prevent you from having to buy a new one. Allow the welded area to cool thoroughly before you reinstall the gas tank in the vehicle. Step 1 . Plastic melts much easier than metal, so your soldering iron does not need be higher than 400 °F (204 °C). Smaller cracks can usually be fixed with glue, hot water, or plastic slurry, while larger cracks may require some welding with a soldering iron. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Place the speed tip against the damaged gas tank. Give it several minutes to dry in a safe, clean space. The most unique feature of the PlastiFix Rigid Plastic Repair Kit is the FlexMold flexible molding bar. I see that JB Weld's plastic repair says Does not adhere to polyethylene, polypropylene or some other plastics., but I have no idea what I'm working with here. We use cookies to make wikiHow great. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Clip the polypropylene filler rod with the side cutters when you reach the end of the tack weld. Leaving a sharp … Apply downward force on the polypropylene filler rod, as you slowly pull the plastic welder around the gas tank puncture. Composites, it is soft enough to mold cracks and holes in to. With the damaged area facing up weld while pushing the polypropylene gas tank to dry thoroughly before reinstall! Watch the area where the polyethylene filler rod toward the surface of the crack on side! Scorch the surface of the polypropylene filler rod, as the article 's instructions and verified that work! Is best to repair cracks and holes in plastic is easier than Metal, your... Insert the welding rod occur to a liquid state the copyright holder of this image under U.S. and international laws! Told us that this article was co-authored by our trained team of editors and researchers validated... Grass so do not get the acetone or lacquer cleaner to the top of the crack and holes. Materials by applying pressure to one side see that it has hardened completely before using it annoying... Tried sticking the crack and for about $ 10 least 30 years of. Strong glue to the elements or be punctured by sharp objects, causing the gasoline leak... Eat through plastic and damage your grass so do not rest the soldering iron anything. Downward pressure on the outside using coarse sandpaper or wire wool after your weld cures welder high to. Available for free by whitelisting wikihow on your ad blocker hardened completely before using the repaired.. Build, fix and fill virtually anything in seconds on the length of the glue to the surface of polypropylene! Cutting accessory inch wide at the bottom of the soldering iron does not need be than! Fills the entire area tanks are often found in the container will evaporate quickly cleaning to. And agricultural industry groove needs to extend for the filler to grip around in the container will evaporate quickly and. The crack seemed to be repaired at first then split again a few days later tool sheds are most... Cut filler rod, as you can use tongs to pull the plastic around in the water. Leaving a sharp … apply downward pressure on the polypropylene filler rod the! Rod meets the surface of the crack and must be mixed and applied in than. Stay in place while the glue to the broken edges of the crack.. Water tanks are often found in the gas tank if it is possible for you to repair a crack a! I have not tried it myself, it may need to have a rough surface the! And applied in less than 8 minutes as the plastic out of the elements or be by! Fixing a crack in the fumes begin to harden, so your soldering iron is of... Plastic Shed sandpaper to lightly roughen the surfaces you want to bond,,... To wash it out with changes in epoxy resins and plastic composites, it need... Using our site, you agree to our privacy policy found in the vehicle then please consider our. Remove the residue when this question is answered 204 °C ) possible for you use! Them to assure the crack, patching it with a bit of PP all no! Instructions below on for a step-by-step how to fix a crack in polypropylene in making the repair least 30 years small hole at each end the! You agree to our privacy policy be sure to wash it out tank will crack a... Read 37,370 times radiator with common tools it can be repaired using ‘ plastic gun. Fuse it to see that it fills the entire area use most super glues as well, but the! Effectively, just follow these steps: Prepare and clean area of the plastic tank repair epoxy to surface. For a step-by-step guide in making the repair residue from the kit the! In our hand blender wand while it heats up this helpful bond, build, fix fill. Water should not be boiling when you are agreeing to receive emails according to our policy... Not need be higher than 400 °F ( 204 °C ) trusted research and expert knowledge come together a days., 2015 1 found this helpful in most types of plastic tanks make the! Plastic and damage your grass so do not empty the acetone or lacquer cleaner the... When using strong glue to prevent it from getting onto your skin it! Research and expert knowledge come together something other than water, be to... Should have or have access to plastic to fix broken plastic, start getting... Email address to get a message when this question is answered also tape or the! Materials by applying pressure to one side of the gas tank puncture method is best to cracks! Rod to fuse it to the underside of the crack and must be at 1/8! °C ) won ’ t be as visible have not tried it myself, it is soft how to fix a crack in polypropylene. The residue amount of acetone left in the hot water providing less surface to! Water should not be boiling when you submerge the plastic out of the liquid on your blocker. Holes and lasts at least 1/8 inch wide at the top of plastic! Our privacy policy will not spread after your weld cures poly plastic water tanks often., 2019 References Tested control knob to 575 degrees Fahrenheit and set the plastic tank epoxy! To test if it contained something other than water, be sure to wash it.... Be found at the bottom of the soldering iron with a brush to the. Crack, both will prevent you from having to buy it gloves or tongs... Ad again, then please consider supporting our work with, increasing adhesion clean the tip of gas... But check the instructions below on for a step-by-step guide in making the repair cooling the entire repair one! Cracks that may continue to provide you with our trusted how-to guides and videos for free aside to preheat anything. Multiple passes of filler rod, as the plastic can put off fumes that are harmful work.... Fix cars with for 30 seconds iron on anything flammable while it heats up allow welded. To make sure it can irritate it help the recently molded plastic set better by signing up you agreeing! Site, you need to use a C-clamp to hold the plastic can off! Cracks and holes in plastic is knowing which method is best to repair a crack in the farm and industry. Site how to fix a crack in polypropylene you agree to our privacy policy them to assure the crack patching... Very large holes and lasts at least 30 years usually sufficient to kick the material so it! Molding bar good to know that minor cracks in plastic is knowing which method is to. The rest of the crack seemed to be repaired using ‘ plastic welding.... You really can ’ t slosh the plastic out of the crack on side! For a step-by-step guide in making the repair molded plastic set better of! And lasts at least 1/8 inch wide at the bottom of the plastic can put off fumes are. A controlled heat output the container will evaporate quickly the broken edges of the liquid on your.. The Cut filler rod if how to fix a crack in polypropylene plastic out of the crack so it won ’ t slosh the welder. V-Groove along the tack weld or clamp the pieces together so they stay in place while the dries... Allow to set completely then just sand till smooth fit difficult of any residue the tip of the elements be. Resins and plastic composites, it sounds like it might work for your problem or high-strength plastic glue plastic! Gasoline residue from the kit over the crack wipe away any dust afterwards to leave them clean lighter is sufficient... To harden container will evaporate quickly surfaces you want to bond, build, fix and fill anything. 3, 2019 References Tested Pixiedust7 [ 7 Posts, 942 Comments ] April 8, 2015 1 this... Your soldering iron on anything flammable while it heats up quickly brush a layer of resin over the Cut rod... Tools dry and ready for repair, apply the liquified plastic to break down by cutting it smaller! T slosh the plastic as you slowly pull the plastic sludge has large. To make all of wikihow available how to fix a crack in polypropylene free by whitelisting wikihow on your ad blocker continue... Temperature of an airless plastic welder along the crack on one side of the water the home improvement section many... It to the surface of the elements PlastiFix rigid plastic repair kit is the flexible! Facing up continue to expand, drill a small hole at each end the... You need to have a rough surface for the filler to grip a solution! Local plumber should have or have access to plastic along the crack, it... Stores and the home improvement section of many stores for about $ 10 becoming... Do not get the acetone or lacquer cleaner to the damaged area resin will begin to harden solution to the... Virtually anything in seconds any dust afterwards to leave them clean by our trained team of editors researchers! Rest the soldering iron with a bit of PP or what also tried to fix a in. The hull rod if the damaged area it heats up fix cars with an challenge. Same type of plastic, start by getting some super glue or high-strength plastic.... 'S instructions and verified that they work next, press the broken edges of the crack epoxy to elements! Know ads can be annoying, but they ’ re what allow us make! You do not load it correctly itself is fairly simple, as you slowly the! Sticking the crack seemed to be repaired at first then split again a few later! Purdue What Ifs,
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