Wessex Chemical Hull White

Wessex Chemicals Hull white is a high quality cleaner designed for use on fibreglass surfaces for the removal of stains, discolouration and black marks.

Hull White contains an organic mixture of polymer
gelling agents, oxalic acid, surfactant and glycol based
solvent mixtures for the cleaning of fibreglass hulls.
Hull white can be used on any fibreglass surface
which has become discoloured through age and
weathering. It is effective at removing the brown/yellow
staining on the waterlines of boats.
As it is a gel, it stays where you apply it, even on
vertical surfaces, meaning it can stay in contact with
the surface for a longer period of time.