Waterline Staining

[SteveIOW]

My GRP hull was spray painted with 2 pack polyuethane 21 years ago and the paintwork has lasted very well. There is some yellow staining just above the boot topping whick I would like to remove. I tried using a blue coloured gell (Y80 ?) some years ago but that actually stained the paintwork blue so won't be using that again. Anyone out there with experiece of a better alternative cleaner on 2 pack polyuethane? (by the way - the hull is painted white)

 

[AlanRD]

Starbright produce a superb cleaner specifically for waterline stains. Can't remember the full name but just spray it on, leave a few minutes then wash off. It is also ideal for removing small barnacles and nasties from props.

 

[VicS]

Y10 is the waterline stain remover. Is it blue? dont know never used it. DIY alternative is a solution of oxalic acid thickened with wallpaper paste.

Star Brite hull cleaners

 

[blueglass]

Cillit bang - works a treat

 

[VicS]

[ QUOTE ]
Cillit bang - works a treat

[/ QUOTE ] Several Cillit Bangs. Which one? Grime and Lime?

 

[blueglass]

can't remenber the name but, yes the one that does limescale stains, not the anti grease one.

 

[mapron]

Cillit Bang original - leave it on for about 15 mins before washing off, or Harpic bathroom cleaner with limescale remover - works faster than Cillit.

 

[safariofhowth]

Y 10 is excellent for most hull stains.
It is a blue gel

 

[SteveIOW]

Thanks for the Harpic suggestion. Used the Harpic Limescale & Stain Remover today - Brilliant. Applied it, left it for 20 minutes, washed it off, job done. Far better than Y10 gell and it didn't leave blue stain on my 2 pack polyuethane (see original post).