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 Author  Topic: Shapeways parts crystallizing
JEno

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of JEno  Posted on: Aug 29, 2020 - 7:20am
Interesting thread. I have used quite a bit of SW parts and yes, I can be a pain to clean of the "crud". An air eraser shooting baking soda seems the best,. All that said, it appears that once the part is cleaned and immediately primer, the "crud" stays gone for good. Of course"for good" may well be a relative term. it will be interesting to address this topic again in a year of so and see if anyone reports the return of the "Crud".


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Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: Sep 11, 2020 - 2:09pm
Wayne Traxel shared an experience he had with the crud contamination. If you try it, I'd stick with original formula Dawn, it's known as an excellent yet gentle cleaner. They even use it to clean wildlife after oil spills:

Have experienced Crud on some items. Soaking in Dawn & Water works for crud removal but only after you forget that they are soaking for about a month or two in a covered plastic coffee container. When finally remembering the container it was discovered that the water turned pale blue, milky and rather slimy, but parts were very crud free. Let them sit in the sun for final cure.

I asked him if I could share his experience on the forum:

Yup, you can use me as to how to clean parts. Make sure to mention that I forgot about them for a couple of months and my first reaction at seeing that creamy substance was that the parts dissolved. I had had the parts for sometime before cleaning them. Have a feeling that they should be cleaned the Day of arrival and get rid of the packaging they were packaged in. Baked in the sun and stored in a parts bin.

Thanks Wayne, beats the heck out of hours of scraping, sanding, blasting!


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