How to Paint a Motorcycle Tank - 56juqingba: How-to instructions you can trust

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Reviewed by Jason Shackelford

Last Updated: September 15, 2021 References

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This article was reviewed by Jason Shackelford. Jason Shackelford is the Owner of Stingray Auto Repair, a family owned and operated auto repair shop with locations in Seattle and Redmond, Washington. He has over 24 years of experience in auto repair and services, and every single technician on Jason’s team has more than 10 years of experience.

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Painting a motorcycle tank is way to customize your motorcycle, but not everyone knows how to paint a motorcycle tank. The gas tank on a motorcycle is a highly sensitive part, and there is a specific technique to painting it safely so that you get a smooth finish. Learn the best way to paint your motorcycle tank, and you can save yourself money that you would spend hiring someone else to do it.

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1 Remove all of the existing paint. Use a sandblaster to sand the tank down to bare metal. Sandblasting might leave some cracks and holes, so use a metal filler to fill in cracks and a body filler to fill in holes. ^{[1] X Research source} Use a piece of 180-grit sandpaper over the surface repeatedly until it is smooth to the touch. ^{[2] X Research source}
2 Cover all openings with duct tape, and use a utility knife to trim the tape before you paint a motorcycle tank. Cover any areas where the rubber gaskets contact the gas tank as this will prevent the paint from getting inside the gas tank. This would include areas in the filler neck area, the petcock assembly, and where the fuel gauge mounts to the tank. Advertisement
3 Apply a minimum of 5 coats of primer. ^{[3] X Research source} Allow each coat to dry. After each coat is dry, sand it and apply another coat until you have 5 layers. ^{[4] X Research source}
4 Apply several coats of base paint, and sand with 380-grit sandpaper in between coats. Allow each coat to dry before proceeding to the next coat.
5 Air brush and add designs, if desired.
6 Apply 3 to 4 coats of clear coat polymer. Allow to dry. This will protect your tank in case you drip gasoline on it while using a gasoline pump. ^{[5] X Research source}

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Question Should I wet-sand the clear coat? Community Answer Yes, you should. Thanks! We’re glad this was helpful.
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Question Which type of paint is best to avoid gasoline damage? Community Answer Use an automotive, catalyzed 2K urethane paint, primer, color layers and clear coat. It is much more resistant to physical damage, UV exposure and chemicals than the acrylic automotive paints. Thanks! We’re glad this was helpful.
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Question Do I need to remove all the old paint when painting a motorcycle tank? Community Answer For best results, yes. Thanks! We’re glad this was helpful.
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Tips

Apply the primer and paint in optimal conditions for the best results. Make sure your painting area has good lighting, a temperature of around 70 degrees Fahrenheit (21.1 degrees Celsius), and low humidity (below 50-percent relative humidity). Most importantly, make sure you are working in a well-ventilated area. Thanks Helpful 24 Not Helpful 18
Take pictures of the tank, and take note of the location of any pre-existing dents or blemishes before you start to sandblast. This may help you remember where the dents are because they might be more difficult to see later on. Thanks Helpful 16 Not Helpful 23

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Warnings

Before you paint your motorcycle tank, drain any gasoline from the tank into a suitable container. Make sure the tank is completely aired out before you begin painting it, since gasoline is highly flammable. Allow the inside of the tank to dry out until you can no longer smell the gasoline fumes, which may take a few days. Thanks Helpful 8 Not Helpful 2
Remove all of the old paint before applying new paint to avoid incompatibility issues between the 2 types of paint. ^{[6] X Research source} If you fail to remove all of the old paint, this will become obvious after the tank is repainted. Thanks Helpful 0 Not Helpful 0