Weird painting problem in a bedroom where a cable is below/buried in the plaster

[greeny]

We have just repainted our spare bedroom with our normal emulsion paint and noted a vertical streak from the ceiling down to a socket. We repainted over the streak but the streak reappeared.
I used my cable detector and established that the cable run was directly under the streak. The streak does not disappear when the paint dries
Weird...
An ideas please?

 

[Resu]

Different type of plaster used over chase that the paint reacts slightly different to? Presumably house has been rewired at some point or that socket was added at a later date to the house being built.

 

[Pete999]

What he said^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

 

[ipf]

Included in new amendment............proves your within zones with yer cables :yesnod:

 

[Octopus]

"clash" of new paint to old? It does happen with modern paints from time to time

 

[Geordie Spark]

Try covering the streak with 2 coats of a good old-fashioned oil based undercoat then use emulsion on top after it's dried properly.

 

[Geordie Spark]

Metal capping below a very thin skim of plaster ???

Metal capping is rusting slightly & the rust is leeching through the plaster.

 

[telectrix]

or if you're flush, buy a aerosol "stain block" from a decent decorators supplier. it stops the stain penetrating the paint.

 

[camerabloke]

or paint it black

 

[telectrix]

love it:

https://www.youtube.com/watch?v=u6d8eKvegLI

 

[Geordie Spark]

love it:

https://www.youtube.com/watch?v=u6d8eKvegLI

You Scouse Git!!! ....... I wanted to post that!!!

 

[telectrix]

ner ner,

 

[Geordie Spark]

ner ner,

Haddaway'n'play wi' yer Box Brownie for a bit.

 

[telectrix]

i got 1 of them in my collection. all in a glass cabinet. some vintage stuff in there as well. even fot a folding bellows job. takes 120 film to give 3+1/4 x 2+1/4 negs.

 

[Geordie Spark]

i got 1 of them in my collection. all in a glass cabinet. some vintage stuff in there as well. even fot a folding bellows job. takes 120 film to give 3+1/4 x 2+1/4 negs.

That's impressive!!

All I've got is a Kodak Brownie 127 (8 shots from a roll film) and a Kodak Brownie Starmite (12 shots from a roll of film and a built in flash wot you put flash bulbs into) a Zenith "B" 35 mm job and a Zenth "E" (like the "B" but with built-in exposure meter) and my Canon 30D.

I had a Canon 350D but Tidyboiler's No. 3 dowter is now the proud owner of it.