Flammability. generally fundamentals

Most sealants use mineral-based fillers, which may contain small amounts of crystalline silica. Crystalline silica is a known cause of silicosis, a debilitating disease of the lung. Some but not all sealants use flammable ingredients, but for those that do, proper inserdng and grounding are needed to prevent potential explosions. In general, sealants should be used in areas that have good ventilation, A careful review of the material safety data sheet is fundamental before use of any sealant. 

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