Posted on January 19, 2010September 10, 2025 by Dale Phillips Questions: Lutherie Related Skin Rash Questions: Lutherie Related Skin Rash by Udi Vachterman Originally published in American Lutherie #80, 2004 and Big Red Book of American Lutherie Volume Seven, 2015 Udi Vachterman from Rehovot, Israel writes: Way back in American Lutherie #58 there was a question from Henry Kingery of Pittsfield, IL. He wrote about a severe itchy skin rash presumably brought on by woods or chemicals in glues. He was taking a synthetic steroid to keep it in check. I know it has been a long time, but I would still like to tell him and others of my experience with a similar problem. A few years ago, just a few days after being exposed to a lot of chemicals and wood dust (an Argentinian wood called “algarrobbo,” which I believe to be “carob tree”), I noticed that small extremely itchy liquid-filled bumps started appearing on the backs of my hands, especially around the joints. With time the bumps developed into shallow wounds and spread toward my wrists. Similar symptoms appeared on my elbows and the upper part of my feet. I went to see four doctors who each had a different diagnosis of my problem. However, they all advised the same treatment, cortisone creams. Yet, they all told me that the cortisone is unlikely to cure the disease, just help manage its symptoms. However this did not make much sense to me. If I am sick, then I want to know what it is and not have four opinions of what it might be. So I went to seek advice of the local pharmacist. To my surprise, she told me that her son has, or had, to be correct, the same problem. It’s a type of psoriasis, a skin disease that is often the body’s response to a trauma caused to the skin (skin injury, skin infections, reaction to certain chemicals). Her treatment was as follows: 1. Extensive use of natural hypo-allergic moisturizing cream. 2. Fish oil (omega 3 essential fatty acids); 3 capsules daily, 1000 MG each, taken with food. 3. Tea tree essential oil used topically for itchiness. After a few months all my symptoms disappeared. My hands were almost like new and I have since built a guitar, inlaid it, and finished it without any of the above mentioned symptoms. And I can once again play my guitars without bleeding while bending strings! If anyone tries this and it helps them, I’d love to hear from them: vachterm@hotmail.com.
Posted on January 19, 2010September 9, 2025 by Dale Phillips Questions: Spalted Maple Mold Questions: Spalted Maple Mold by Bob Woodcock Originally published in American Lutherie #69, 2002 and Big Red Book of American Lutherie Volume Six, 2013 Mike Collins of Argyle, New York asks: I just came across some nice spalted maple and made a rosette of it. After I was done, a violin maker told me that you could die from the mold in the wood. Where can I get more information about this? A few days later, Mike wrote back with this information: I found a website, www.woodbox.com/data/wood/ that has some information on spalted wood and possible health problems. Here’s an excerpt: “Spalted wood may still contain spores, therefore it should always be worked and sanded only when wearing a good dust mask or respirator, and using a dust collector. There is medical evidence that substances from decaying wood are a health threat, and some allergic reactions and serious lung diseases have been traced to spores and fungi that inhabit rotting wood. The effect on an individual woodworker however depends on his/her natural tolerance to the spores and fungi, since some individuals are more likely to react to environmental toxins than others.” Become A Member to Continue Reading This Article This article is part of the Articles Online featured on our website for Guild members. To view this and other web articles, join the Guild of American Luthiers. For details, visit the membership page. MEMBERS: login for access or contact us to setup your account.
Posted on January 19, 2010September 9, 2025 by Dale Phillips Questions: Spalted Wood Toxicity Questions: Spalted Wood Toxicity by Bob Woodcock Originally published in American Lutherie #71, 2002 and Big Red Book of American Lutherie Volume Six, 2013 Bob Woodcock of Conshohocken, Pennsylvania responds. Bob is both a poison information specialist and registered nurse. As to the question about spalted maple being lethal, the writer may be referring to my Dec. 1991 article on wood toxicity in Wood magazine. I mentioned a case of a wood turner with allergic asthma who was found dead in his shop with spalted maple turning on the lathe. The cause of death was acute asthma. Spalting is mostly a result of Cryptostroma corticale, a potent allergy-causing mold. You’d know if you were allergic to it; you would sneeze, cough, or tear up while working with it. These allergies tend to get worse over time, and a period away from the substance will allow the body to increase its sensitivity. Workers with allergies from work exposure find that the first day back after a few days off are the worst. This is referred to as “Monday morning asthma.” Such was probably the case with the turner. After a weekend off, his immune system was primed and ready to go; exposure resulted in death. The take-home lesson is to use common sense. If the wood seems to bother you in any way, avoid it. ◆
Posted on January 19, 2010September 10, 2025 by Dale Phillips Questions: Toxicity of Odorless Superglue Questions: Toxicity of Odorless Superglue by Bill Hunter Originally published in American Lutherie #82, 2005 and Big Red Book of American Lutherie Volume Seven, 2015 Ralph from Austin, Texas asks: I recently read on a luthier e-mail list about a guy using odorless cyanoacrylate glue for filler. The brand he uses is by Satellite City, maker of Hot Stuff™ and UFO™, which stands for “user-friendly odorless.” I know from experience that vapors from CA glue are not friendly to the eyes or to the respiratory system. My question is: if it has no scent and you don’t have any skin exposure, does this mean it’s rendered totally nontoxic or nonirritating? The bigger question is: how are products made odorless? Are there just blocking agents so that we are unable to detect them, but they’re still there, and therefore still irritating or toxic? Bill Hunter of Simi Valley, California, cofounder of Satellite City, answers: “Toxic,” in general implies a lasting or long-term harmful effect. Cyanoacrylate adhesives are not toxic except to those who are allergic to them. The same could be said of milk, peanuts, and grains. “Irritating” is comparable to the feeling one gets in the eyes and nose when dicing onions. The scent is not what irritates the eyes, nose, and throat, it’s the fumes. And, of course, if the fumes are masked, a product can give the unrealistic impression that there will be no irritation. In fact, the scent of many chemicals is a good gauge by which to judge exposure. If, on the other hand, there is no scent because there are no fumes, you have the best possible working conditions. Hot Stuff “UFO” instant adhesives have been relied on by folks who have allergic reactions to typical cyanoacrylates since 1988. Many of these people can’t be in the same room where an instant glue is being used without a violent reaction. No problem with “UFO.” It’s the only CA they can use. Regarding skin exposure: Skin exposure, even for typical cyanoacrylates, is not a consideration for 99.99% of users, and in thirty-five years, I have never, ever heard of anyone being bothered in any way by skin exposure to “UFO.” Note: Mr. Hunter also sent me the MSDS on CA glues, which didn’t help me understand. I tried to follow-up Mr. Hunter’s answer and he repeated the above information. I’d like to hear from some of you with sensitivities to the regular stuff and perhaps others who understand the chemical lingo. A product so seemingly integral and essential to modern lutherie certainly deserves a little scrutiny.
