I had some problems with a model I made not being able to be cleaned (have the support material removed). After hearing that the support material for Black Detail expands when it is removed I started realizing some of the limits of 3d printing and cleaning because of this. I got a very helpful response from Frank Geven about the different processes for support material removal: The way support material is to be removed depends on the material you choose for your model. Cream Robust: indeed, it dissolves. White Strong & Flexible: the support material is unused powder. After production this powder can be removed by using a brush. White Detail, Black Detail and Transparent Detail: big chunks not too close to the model can be broken. The rest will be removed with water jet (30-60 bar). Here the support will expand during removal. Hope this helps you! I'm planning on having my miniature coca cola bottle printed ( http://www.shapeways.com/model/7680/coca_cola_bottle.html ). I'd like to do it in Transparent Detail so it looks like glass, but it wouldn't be able to be cleaned right? Thanks for the help.