Hi there. I'm excited to try out the new brass material! Since I make and sell a lot of jewelry, I often get questions from customers about the metal contents, particularly about metals that can cause allergies. I know that brass is often made with some amount of lead, so this is also of interest to customers with kids. Can you please provide information about the composition of the brass material, and hopefully a material safety data sheet? I know that what Shapeways stainless steel is a different composition than what most people associate with stainless, so I want to make sure I understand what the brass material is. Thanks!
One data point from the original announcement (on the blog) is that the gold-plated variety uses a nickel underplate. Shapeways has so far not responded to concerns regarding compliance with exposure limits as per EU REACH regulation annex 17.
Sorry, I posted that message to a thread open in another tab on my browser, and the forum posted it here because this window was more recently refreshed. Glitch in the forum system I guess.
Hey guys, we're working on the MSDS for you. I can tell you that our Brass is 15% Zinc, 5% Tin, and 80% Copper. If you need any other information please ask and I'll see what I can find.
I brought it up as the original blog posting for/from the trial phase states Now I just noticed that the original "24K gold" in the phrase that followed has been changed to "22K gold", so you might want to strike out the part about nickel plating in the old blog entry as well. Probably the product was changed to be more skin-friendly, or the initial description was copied over from some internal document on the gold-plated stainless (which btw might also benefit from a note on the details of electroplating) ?
I am interested in the density of the materials, I would like to be able to estimate weight based off of material volume.