Removing baked on salt water marks

 Hi All,


I have an old 1996 merc 40hp which hasnt been looked after.

The cowling is caked with years and years of burned on salt water stains.

I tried CLR, but I think that might only work on minor stains, does anyone have any tips on how to clean it off without damaging the plastic?


Thanks !

little johnny's picture

Posts: 2685

Date Joined: 04/12/11

Try blue loo

Mon, 2018-02-05 22:28

Toilet stuff. Takes bore stains of windows . Worth a shot ?

Posts: 35

Date Joined: 09/12/15

 i read that somewhere, but i

Mon, 2018-02-05 23:21

 i read that somewhere, but i think it will destroy the paint, its a last resort

scano's picture

Posts: 969

Date Joined: 31/05/07

White vinegar?

Tue, 2018-02-06 05:50

 obvioisly try it on an inconspicuous area, but that is an awesome natural cleaner on just about anything




Coastrunner's picture

Posts: 149

Date Joined: 25/10/14

Salt Away

Tue, 2018-02-06 06:12

Might be worth a go.

backlash's picture

Posts: 152

Date Joined: 12/10/10

Prepsol ?

Tue, 2018-02-06 08:00

maybe try Prepsol ?

at least I know it shouldn't damage your paintwork otherwise a light cut and polish might work

Posts: 195

Date Joined: 02/01/12

 Salt elim, works a treat

Tue, 2018-02-06 09:26

 Salt elim, works a treat bought a couple of bottles a few years back when HayWay closed its doors, very impressive product even cleaned away hard water marks that I could not get off windows with  Anything else. Hopefully  it's still around was retailed under the brand name quest marine products. If you can't find it I would give salt away a try sounds like a  similar product