Starbrite bio diesel additive stains

[jlavery]

When we refilled with diesel, I spilt some Starbrite Bio Diesel additive on the transom. This has left brown stains.

Have tried:
Acetone
Diesel (!)
WD-40 (had a WD-40 spillage so thought to try it)
Starbrite hull cleaner
Starbrite rust stain remover

No luck.

Any suggestions?

 

[lektran]

Maybe try a little polishing compound to see if it moves at all?

 

[Refueler]

Thje problem with such fluids - they have solvents and various 'active' ingredients that can be quite aggressive / persistent.

The suggestion to try polishing out may be answer ... I have to admit that I have yet to find an effective cleaner for them.

 

[owen]

Oxalic acid??

 

[PeterBoater]

Cellulose thinners, Hammerite thinners or brake cleaner? Lidl brush cleaner seems to get most things off. No idea of the effect on gelcoat etc; as they say, try an inconspicuous area first.

 

[jlavery]

Jif (Cif these days ) and elbow grease seems to be working. I know one shouldn't use Jif as it's got ammonia in it, but she's 35 years old and seen a lot already. Elbow grease and a good rinse afterwards.

 

[Momac]

Laundry liquid mixed with warm water . Biological type if you have it. Scrub with a brush or cloth.
You probably have this at home so no harm trying.

 

[alahol2]

Try one of those magic eraser sponges. For some things they are amazing, for others they make little difference.

 

[Victoriana]

Sodium Bicarbonate and white vinegar mixed into a paste.