reading Posted February 10, 2012 Share Posted February 10, 2012 We did a couple lead tests today: some mugs and our rosin. Well, the mugs were all fine, but to my surprise the rosin wasn't :confused:. And no, it's not the type of rosin that has lead added on purpose. Of course I don't know how critical the lead level is, especially since the color change didn't happen instantly, but I don't want to take any chances in that regard. Can anyone recommend a good rosin, preferably low-dust? Quote Link to comment Share on other sites More sharing options...
zaichiki Posted February 10, 2012 Share Posted February 10, 2012 We did a couple lead tests today: some mugs and our rosin. Well, the mugs were all fine, but to my surprise the rosin wasn't :confused:. And no, it's not the type of rosin that has lead added on purpose. Of course I don't know how critical the lead level is, especially since the color change didn't happen instantly, but I don't want to take any chances in that regard. Can anyone recommend a good rosin, preferably low-dust? What type of lead test did you do? I've heard that the types you purchase off the shelf at Home Depot and the like are not reliable (false positives and false negatives). Quote Link to comment Share on other sites More sharing options...
reading Posted February 10, 2012 Author Share Posted February 10, 2012 Homax Lead Check, the Home Depot kind. These tests are not very accurate, there are plenty of false negatives. False positives are rare, though. When the CPSC tested them, only 2 of 104 test results were false positives. XRF or lab testing is out of the question, so I'll just use some other rosin :glare:. Quote Link to comment Share on other sites More sharing options...
reading Posted February 10, 2012 Author Share Posted February 10, 2012 Dd uses Hill Dark but I don't know anything about lead in it. Thanks! I put it on my list. Quote Link to comment Share on other sites More sharing options...
zaichiki Posted February 10, 2012 Share Posted February 10, 2012 (edited) But how would you know which brands of rosin have lead in them? I mean... I can suggest a few... but I would have no idea if they had any measurable levels of lead in them... ETA: Why not call a strings store, share your experience with the lead testing, and ask them if they can lead (ha) you in the right direction? They sell MANY brands of rosin and might know something about whether or not any of them have lead in them. Here are two places you might start. Contact info is on their home page. www.sharmusic.com www.johnsonstring.com Edited February 10, 2012 by zaichiki Quote Link to comment Share on other sites More sharing options...
Guest Posted February 10, 2012 Share Posted February 10, 2012 Wow, thanks for posting this. I'm going to have to check our my rosin. Quote Link to comment Share on other sites More sharing options...
mlbuchina Posted February 10, 2012 Share Posted February 10, 2012 As my dd8 is taking her first violin lesson tomorrow, this really caught my eye. I googled lead in rosin and this is what I found: "Some companies also add precious metals to their recipes—another choice to consider when shopping for rosin. It is not uncommon to see gold, silver, lead-silver, and copper added to rosin. These materials purportedly increase the rosin's static friction, creating different tonal qualities." "Lead-silver rosin is well-suited for both the violin and viola and is a soft but nontacky rosin. It enhances warmth and clarity, producing a fresh playing tone." Source: http://www.allthingsstrings.com/Bows/CARE-MAINTENANCE/The-Differences-Between-Dark-and-Amber-Rosin This begs the question, what is lead-silver. Another google search reveals that silver is found attached to lead, so silver mined from lead is lead-silver. "Silver is found in lead, zinc, and copper ore deposits. A full two-thirds of the silver resources in the world are found in association with these other metal ores. The remaining third is found in association with deposits of gold." Source:http://www.mii.org/minerals/photosilver.html I have no idea how you know if your rosin has lead in it or not, nor if this information is helpful.:D Quote Link to comment Share on other sites More sharing options...
Guest Posted February 10, 2012 Share Posted February 10, 2012 As my dd8 is taking her first violin lesson tomorrow, this really caught my eye. I googled lead in rosin and this is what I found: "Some companies also add precious metals to their recipes—another choice to consider when shopping for rosin. It is not uncommon to see gold, silver, lead-silver, and copper added to rosin. These materials purportedly increase the rosin's static friction, creating different tonal qualities." "Lead-silver rosin is well-suited for both the violin and viola and is a soft but nontacky rosin. It enhances warmth and clarity, producing a fresh playing tone." Source: http://www.allthingsstrings.com/Bows/CARE-MAINTENANCE/The-Differences-Between-Dark-and-Amber-Rosin This begs the question, what is lead-silver. Another google search reveals that silver is found attached to lead, so silver mined from lead is lead-silver. "Silver is found in lead, zinc, and copper ore deposits. A full two-thirds of the silver resources in the world are found in association with these other metal ores. The remaining third is found in association with deposits of gold." Source:http://www.mii.org/minerals/photosilver.html I have no idea how you know if your rosin has lead in it or not, nor if this information is helpful.:D :lol: I'm not sure if that information is helpful, either, but it sure is information, isn't it? ;) Quote Link to comment Share on other sites More sharing options...
mlbuchina Posted February 10, 2012 Share Posted February 10, 2012 :lol: I'm not sure if that information is helpful, either, but it sure is information, isn't it? ;) :lol::lol: Isn't it though? Makes we wonder if I need to get rid of my silver jewelry...:tongue_smilie: Quote Link to comment Share on other sites More sharing options...
Guest Posted February 10, 2012 Share Posted February 10, 2012 :lol::lol: Isn't it though? Makes we wonder if I need to get rid of my silver jewelry...:tongue_smilie: :lol::lol::lol: I wonder where we could find information about that. Not sure if it would help us, though. Quote Link to comment Share on other sites More sharing options...
Jaybee Posted February 10, 2012 Share Posted February 10, 2012 This is what I use: http://www.music123.com/Orchestral-Strings/Accessories-for-Orchestral-Strings/Bows-Rosin/Rosin/Violin-Viola-General-Purpose-Rosin/Violin-Viola-Cello-Rosin.site7sku470996000000000.sku But I have no idea whether it has lead or not. That never even occurred to me as a possibility. Quote Link to comment Share on other sites More sharing options...
Donna Posted February 10, 2012 Share Posted February 10, 2012 The rosin my dd uses has gold dust in it. I have no idea if there is lead in it or not. I never would have thought about lead in rosin. Hmmm. Quote Link to comment Share on other sites More sharing options...
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