painting over stains

[bsffamily]

Hello there,
this is my first post so i hope i do it right!
My question is how to paint over some stajns that keep coming through the paint.
there ws a leek in the roof and water came through , if i am to put a fresh coat of emulsion on how do I stop the stain comi9ng througfh?

also we have some old beams that have been painted over but whatever they were treated with shows through as a brown stain. what can I do to seal the beams and paint over . we'd like to use emulsion on the beams as it will be same as ceiling.
looking forward to hearing how to do it
many thanks

[sparrow]

See the project on the website called blocking water stains. Its dead easy to remedy. The beams can be treated with a dark oil based undercoat which should stop the stains coming through if you want to paint them.

[thedoctor]

MANY OF THE ANSWERS TO YOUR POSTS CAN BE FOUND, WITH DIAGRAMS, IN THE DIYDOCTOR PROJECTS SECTION. CLICK HERE www.diydoctor.org.uk/projects.htm

[paintpot]

Hi There
INTERNATIONAL PAINTS have a paint on the market called ANTI-STAIN PAINT which should cover your first problem .If the damp is still coming through use ANTI-DAMP paint,Both products should be found in B & Q
Regards Paintpot