Carba Mix Ingredient Allergy Safety Information

What is it?

Carba mix contains the following three allergens:

Diphenylguanidine
Zincdibutyldithiocarbamate (ZBC)
Zincdiethyldithiocarbamate (ZDC)

Chemicals like those found in carba mix (called carbamates) are used as accelerators in the manufacture of rubber products and in agricultural chemicals. Both natural and synthetic rubber may contain these agents.

How do I avoid it?

Skin contact with one of the components of carba mix is required for it to cause a rash. Discontinuation of exposure to products containing carbamates should result in improvement and/or resolution of your dermatitis. By law, all products made in the U.S. for topical use have the ingredients listed either on the product package or the box that contains it, so check the labeling. At work, request a safety data sheet (SDS) to help identify potential sources of exposure. It may be difficult to determine which rubber products contain carbamates.

If you are allergic to carbamates and have foot dermatitis, it is probably due to your shoes. Avoid rubber insoles, rubber boots, and rubber shoes such as sneakers and tennis shoes. You may wear all-leather shoes with no inner or outer sole, like moccasins. Molded plastic shoes or wooden clogs can be worn. If in doubt, wear new shoes for a few days and watch for a rash. You could also contact a local or online shoe store and ask for U.S.-made, rubber-free shoes. If you cannot find such shoes, the insoles should be removed from leather shoes, and insoles cut from piano felt, cork, or plastic should be inserted. Sweating should be minimized, and socks that may have absorbed allergens should be discarded as this chemical does not wash out.

If you are allergic to carbamates and have hand dermatitis, you should avoid rubber (latex) gloves and, if possible, wear vinyl gloves only. If rubber gloves must be worn, you may need to search online or contact manufacturers to find carbamate-free rubber gloves.

Inform your health care providers that you are allergic to carba mix chemicals.

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