What type of materials are lifting bags typically used to spread or lift during rescues?

Lifting bags are typically used with rubber or neoprene compounds because these materials are flexible, durable, and have the capacity to withstand the forces encountered during lifting operations. The nature of rubber and neoprene allows the bags to conform to various shapes and surfaces, ensuring better contact and grip during rescue situations. This ensures that the lifting bags can operate effectively to raise or stabilize objects in need of rescue, such as vehicles or debris. Their waterproof and resistant properties also contribute to the effectiveness of lifting bags in diverse rescue environments, where moisture or harsh conditions could be a factor.

In contrast, wooden blocks, metal sheets, and plastic tarpaulins do not provide the same kind of flexibility or adaptability required for effective lifting tasks. Wooden blocks may serve a different purpose, such as stabilization, while metal sheets can be too rigid and heavy. Plastic tarpaulins lack the structural integrity needed to support significant weight during a lift. Thus, rubber and neoprene materials are ideal for the requirements of lifting bags.