Artists and Crafters who experiment with materials for the first time often aren't attune to the safety hazards of new materials.  As a professional, it doesn't hurt to brush up on safety from time to time. If you have a home studio, teach classes, or work with children it would be in your best interest to print out the safety requirements and post them in your work space. Having them on hand could save you from an unnecessary accident. This materials safety guide is free for you to download from the U. S. Consumer Product Safety Commission. [safety guide]