SPYDER I also asked the same question. It seems the factory DOES NOT use a heat setting as high as most powder coaters use. I think it is a time thing but not completely sure.
Be Safe
THE DAWG
Mike, I think you and I spoke about this once previously. But it's been long enough ago I wouldn't swear to it.
There was a concern (voiced by the machinist at Zippers that worked on the jugs) that many powder coaters bake at too high a temp. Problems can result.
Can't speak to any others. But everyone involved in my work seemed of the opinion that Sumax knew what they were doing here and would not be a hazard. The pistons fit the jugs just fine so, apparently, all was well on that job. Sumax was slower than 49cc scooter carrying me and Dawg together. But their work was apparently top notch both in terms of visual appearance and in familiarity with the requirements of what they were working on.