Polysulfide liquid polymers are mercaptan terminated, long chain aliphatic polymers containing disulfide linkages. They can be converted to rubbers at room temperature without shrinkage upon addition of a curing agent. Used for exterior sealant and sealed insulating glass sealant.

Synthetic rubber-like substance used as caulking or sealing for gaskets. It is weather and chemical resistant in both solid and liquid forms.

Polysulfides are a class of chemical compounds containing chains of sulfur atoms. In their simplest form, polysulfides are anions with the general formula Sn2−.