"Good luck" to all of you who want to put paint on FED & FUD parts with the dreaded crystallization problem still unresolved by both Shapeways and 3DSystems after now more than 1 year.
Anyone who listens to the self appointed chemistry experts here who think they found the magical solution for painting & cleaning FED & FUD parts without ending up with a mass of crystallization would be mistaken, because not even the chemist hired by Shapeways nor the chemical engineers of 3DSystems know the answer... and if 3DS have the answer they sure are not telling us, because I have yet to find a how-to guideline published by 3DSystems to explain how to do this & what products to use & which ones to avoid, & until we get that everyone else is just playing apprentice sorcerer. They may keep repeating that their special home-brew method works for them, but vested commercial interests apart, plenty of people have shown photos of crystals growing underneath painted FED & FUD parts too...
So I would suggest people stop inducing unsuspecting customers in error and refrain from playing experts who know better than the chemical engineers of 3DSystems & their UV-curable acrylates manufacturer, because if & when clients decide to eventually launch lawsuits for defective material and or false advertising, I think the wisest course of action would be to stop giving out information that is not based on any accurate technical information & that could cause problems with their 3D printed part (crystallization) & to refrain from giving out paint & cleaning advice on these materials. Even the name of the chemical company making MJM UV-curable acrylates for 3DSystems & which Shapeways sells under the names FED and FUD is not known, and 3DSystems sure is not sharing that information with us...
So let's stop giving non-accurate 'expert' advice on paint until the real experts at 3DSystems tell us what is safe and what isn't. How about WE all start emailing 3DS for answers ? That would make a lot more sense than staying here for 1 year & giving out 'advice' which is ill advised and totally unscientific as NO store owners or modelers know what is the exact chemical content of the MJM UV curable acrylate plastics from 3DS as that information is a trade secret. And even if we knew it still wouldn't help us as we are not molecular engineers: UV-curable use a complex 3 stage reaction (plus in the case of 3DS MJM materials there is wax that enter in the equation as well). So store owners are way over their head on this one.
Please read my comments on the crystallization thread about potential sources of contamination. There's LOT more than what most people think.
And as if to confirm what i just wrote, and I had wanted to write this since a long time: ever noticed that on the page for FED or FUD material Shapeways is showing what looks very clearly like a bottle of Testors red enamel paint ? (and other colors in the background). A type of paint that clients have already found out could cause crystallization to occur when applied to FED or FUD parts... (not the brand specifically, but enamels in general, most likely due to to the solvents they contain). So any SW clients who sees this & buys FED or FUD products & think that enamels are safe because they saw Shapeways display a photo of it on its own webpage may have a disagreeable surprise & may ruin their expensively 3D printed parts if the parts are from one of the batches that are somehow affected by the crystallization issue...
I think Shapeways should remove that photo ASAP to avoid the risk of causing it's clients more problems. I have waited for nearly 1 year to see if they would pull out that photo, given the number of people having reported problems with enamel paint when used on FUD & FED parts, & given SW told us since now 1 year that there is a problem of crystallization with FED & FUD plastics, it is rather astonishing that they did not have the good sense to remove that picture to avoid giving the wrong idea to scale modelers.