Chemical lead sheet is a thin layer of metal made by rolling nearly pure lead (99.9% per QQ-L-201F Grade C) into flexible sheets. This soft, easy-to-work-with material is a favorite among construction workers for its waterproofing abilities. Lead sheet's resistance to corrosion makes it ideal for roofs, flashings, and lining materials in wet environments like fountains and chemical tanks. Beyond waterproofing, it's a great sound and vibration dampener, making it useful in soundproofing applications.