Sanding the paint off, yes, though the material itself is hard to sand. I just thought it would be worth pointing this out on the Material page, rather than stating erroneously that WSF is easy to sand.
As for FUD, I did get some buses printed in that material, at a much dearer cost than WSF, and they were a disaster. A mish-mash of clear and rough finish, and covered in some foul yellow wax that I still haven't managed to clean off properly. Even if I do manage to clean it all off, there is no way I could sell anything of that poor quality to anyone else. They were unfit even to show anyone.
In this and other posts, I suppose I am trying to make the point that just because Shapeways is opening up 3D printing to the masses, at affordable prices, it is not a justification for poor quality. Unfortunately, most of what I and my customers have ordered over the last year has been of dubious quality for one reason or another. I need to be able to rely on a standard level of quality, rather than the lottery I have had up to now.
The very first print I got was very good. In fact I was delighted with it. Most prints since have been invariably worse, either orientated wrongly, not cleaned properly, delivered with broken parts due to being jammed into unsuitable packaging, one part even appeared to have shifted in the machine due to wavy print lines, and with regard to FUD, that horrible wax.
If I were to send back every unsuitable print to Shapeways, I would have sent back most of them. Instead, I have absorbed the cost of them, and made the best of them. It's part of a learning process. I didn't mind in the beginning. But I am getting tired of it. This doesn't lend itself to opening a shop and selling such models in any numbers to other unsuspecting customers. I have already taken much criticism over the few I have sold.
I'd love to push Shapeways among my modelling community here, but so far, the results have not been reliable enough. At the moment, it really only serves for my own private models, and there are other better quality manufacturers for that.