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5 5.1 Using WEST SYSTEM® Epoxy This section is designed to help you understand and safely handle WEST SYSTEM epoxy products and to provide the basic techniques used in most repair and building operations. Refer to the WEST SYSTEM User Manual & Product Guide for more complete product infor- mation. Epoxy safety Epoxies are safe when handled properly. To use WEST SYSTEM epoxies safely, you must un- derstand their hazards and take precautions to avoid them. Hazards The primary hazard associated with epoxy involves skin contact. WEST SYSTEM resin may cause moderate skin irritation. WEST SYSTEM hardeners are corrosive and may cause severe skin irritation. Resins and hardeners are also sensitizers and may cause an allergic reaction similar to poison ivy. Susceptibility and the severity of a reaction varies with the individual. Although most people are not sensitive to WEST SYSTEM resin and hardeners, the risk of be- coming sensitized increases with repeated contact. For those who become sensitized, the severity of the reaction may increase with each contact. The hazards associated with resins and hardeners also apply to the sanding dust from epoxy that has not fully cured. These hazards decrease as resin/hardener mixtures reach full cure. Refer to product labels or Ma- terial Safety Data Sheets for specific product warnings and safety information. Precautions 1. Avoidcontactwithresin,hardeners,mixedepoxyandsandingdustfromepoxythatisnot fully cured. Wear protective gloves and clothing whenever you handle WEST SYSTEM epox- ies. Barrier skin creams provide additional protection. If you do get resin, hardener or mixed epoxy on your skin, remove it as soon as possible. Resin is not water soluble—use a waterless skin cleanser to remove resin or mixed epoxy from your skin. Hardener is water soluble—wash with soap and warm water to remove hardener or sanding dust from your skin. Always wash thoroughly with soap and warm water after using epoxy. Never use sol- vents to remove epoxy from your skin. Stop using the product if you develop a reaction. Resume work only after the symptoms disappear, usually after several days. When you resume work, improve your safety precau- tions to prevent exposure to epoxy, its vapors, and sanding dust. If problems persist, dis- continue use and consult a physician. 2. Protect your eyes from contact with resin, hardeners, mixed epoxy, and sanding dust by wearing appropriate eye protection. If contact occurs, immediately flush the eyes with wa- ter under low pressure for 15 minutes. If discomfort persists, seek medical attention. 3. Avoid breathing concentrated vapors and sanding dust. WEST SYSTEM epoxies have low VOC content, but vapors can build up in unvented spaces. Provide ample ventilation when working with epoxy in confined spaces, such as boat interiors. When adequate ventilation is not possible, wear a NIOSH (National Institute for Occupational Safety and Health) ap- Using WEST SYSTEM® Epoxy 30 5PDF Image | Vacuum Bagging Techniques 002150
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