Category of products that prevents or acts on possible sedimentation phenomena that may occur within the application systems (such as agitation tanks), keeping the solid particles of the system suspended.

To put it simple: they can act from the steric point of view, creating through particular polymers a cross-linkng effect inside the system that prevents particles to approach, also "contrasting" the force of gravity that would cause the solid parts to drop and settle in the lower part of the tank or container..

Alternatively, suspending agents act on a ionic charge level by increasing the amount of some ions able to saturating the water, thus structuring the system.