I had a '89 Yamaha Banshee that I wanted the tank cover a different color. I sanded the plastic, careful not to miss anything. I then sprayed it with Rustoleum Sunburst? yellow, using no primer. It lasted for years and never pealed. I believe the key is to make sure you sand/steel wool the entire piece until no gloss is left on the original finish.
In the case of this saw, I'm still sanding the plastic to remove all original gloss. It will surprise you how tough this plastic is. It'll take a courser grit than you would expect, like 220-400 wet/dry. Again, I used no primer. I then coat with Stihl paint until I get good coverage. Unfortunately, that's quite a lot with Stihl Orange. The Grey covers very well. No more than one or two coats is needed. I then let the color coat dry until tack free. Anything in grey can be baked at 170 in the oven. DO NOT bake anything in orange. It will blister, even at 170F. I then apply one or two coats of Rustoleum clear. I've yet to test the fuel resistance of this clear paint. Fortunately, the tank is not painted on this saw, so fuel resistance should not be the issue it was on the 045 Super I did last year.
In the case of this saw, I'm still sanding the plastic to remove all original gloss. It will surprise you how tough this plastic is. It'll take a courser grit than you would expect, like 220-400 wet/dry. Again, I used no primer. I then coat with Stihl paint until I get good coverage. Unfortunately, that's quite a lot with Stihl Orange. The Grey covers very well. No more than one or two coats is needed. I then let the color coat dry until tack free. Anything in grey can be baked at 170 in the oven. DO NOT bake anything in orange. It will blister, even at 170F. I then apply one or two coats of Rustoleum clear. I've yet to test the fuel resistance of this clear paint. Fortunately, the tank is not painted on this saw, so fuel resistance should not be the issue it was on the 045 Super I did last year.
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