Reasonable bond strength - enough for paint - can be achieved with very light surface roughening using detergent water and fine wet-or-dry sandpaper. The best are too hazardous for a small shop or garage since the chemicals involved are actually dangerous. In industry there are numerous methods used to treat the surface of polyethylene before bonding or painting. One is to "activate" or "modify" the surface chemically to allow wet out and adhesion. There are two issues involved in painting polyethylene. Also, if the guy that used bed liner to cover would report his results I would appreciate it as that sounds like a reasonable idea. I was wondering if it could be lightly sanded or if the stain goes much deeper than that. As with many of the questions posted, I am trying to restore a faded dirt bike gas tank to white. I too have tried painting the Plastic gas tank on my MZ several times with no success. I'm trying to find out if Brett W had any luck with the bed liner spray sticking to the plastic gas tank.
Check with me in a couple weeks and I'll tell you how it turned out. If it works well, I may paint the other pieces to match. The finish will be textured, but still shiny - and TOUGH. POSSIBLE SOLUTION: I'm taking it to a local spray-on truck bed liner company. Same thing - just weeks later, I got bubbling, and eventually scraped it all off. I tried painting with an epoxy primer and paint. All remain white over the years, but the gas tank is yellowed. 1986 Yamaha TT350 with white PE (plastic) fairings, fenders, and yes, gas tank. It is like painting plastic ground effect kits for cars, same thing. You can paint the plastic, it is made out of the same plastic as the fairings and such. This is a common thing now with the new Honda CBR only the outer shell is plastic the inner tank part is still metal. The ones for street bikes are Polyamide (nylon).īest regards, Roberto C Ī. Painting could be performed if the tank is fluorinated (not very practical for me). According to them they are not repairable nor paintable. I contacted Acerbis a major manufacturer of motorcycle gas tank and they told me that their tanks for off road (dirt) bikes are Reticulated Polyethylene (PE-X). I can confirm this having a problem of painting a gas tank myself. (It is our sad duty to advise that Freeman passed away But please get back and let me know what make of motor bike this is, a cross country special, perhaps? Thanks. which is why it, like many plastics, is coloured (normally black) but red colours, ask any motorist, DO fade. PE is pretty good in permeability but PE will eventually break down due to U.V. Are you SURE? Was this always like this? (which I doubt). I would be much more concerned about the gas fumes that, you say, permeate through the tank's walls. (commissions from your purchases make possible) I have a plastic (polyethylene, I believe) gas tank from a motorcycle I would like to paint or at least find a way to have it colored "red" instead of the faded orange type color it is now. Previous closely related Q&A's, oldest first: 2002 VMX Enthusiast /restorer - Doylestown, Pennsylvania Thanks in advance for your knowledge and input on this matter. Has anyone ever tried this with Powder coating the exterior of the tank? Hope this will get a lot of response in order that there maybe a reasonable way to successfully paint your MX plastics without the negative consequences that we all have heard about or experienced. Would a special paint such as ("Imron" or "Emron", not sure how it is spelled) Aircraft quality paint improve the chances of obtaining the best finish. Does an adhesion promoter and flex agent need to be used with the paint for most durable long lasting finish. First off do these epoxy gas tank sealers work? or will this peel or negatively effect the performance of the plastic tank? If this were successful in sealing the inside of the tank, what other special provisions are needed to successfully paint the exterior of the fuel tank. My thinking is that this may solve the out gassing issue in order that the paint may stay adhered. I would like to seal the inside of the tank with a good plastic epoxy gas tank sealer. This being said, does anyone know of some process that would allow for the successful application of a good Automotive paint finish that will not "bubble up" once applied to the HDPE tank. I have never tried this, but have been told that this is not possible due to the out gassing of fumes thru the plastic "pores". I know that many people would love to be able to paint their old faded beat up MX fuel tank. "Painting a plastic (polyethylene) motorcycle gas tank?" It's Tuesday 12/21/21 & your Q or A is Welcome.Ĭhime right in! (a "no registration" site)
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