Virus

[MIXERMAN]

Could be botchulism. Lick it ,and if you're tongue falls off , it might need a coat of pva.

 

[zombie]

Nicotine

 

[tapit]

Went up the loft no sign of rots.

 

[Monkeynuts39]

Very strange ,looks like mould but definitely isn’t as it wouldn’t grow that quick and it’s still drying so happening suddenly, never seen anything like it

 

[tapit]

Nicotine

Possible, it may have been under paint and leached through when it was wetted.

 

[ChrispyUK]

Stain block.

Thread closed

 

[Cockney]

 

[Wayners]

Light oil in the mix water maybe.

 

[Deleted member 32554]

I'd agree with nicotine , but in the bathroom ?

 

[tapit]

Still there after plaster dried but stain blocked and painted over now.
It remains a mystery, case closed.

 

[ChrispyUK]

Still there after plaster dried but stain blocked and painted over now.
It remains a mystery, case closed.

possible entry for the Collins bumper book of unsolved mysteries.

 

[smoother09]

Get some of that zinzer stuff on it

 

[tapit]

Get some of that zinzer stuff on it

Do they do mystery stain block?

 

[Ktownsend]

Rat or mouse piss that is

 

[MakeItSmooth]

Still there.

Looks like it could be oil or grease

Vaseline?

 

[Trppy]

Vaseline?

Maybe