In article ,
says...
On Thu, 8 Sep 2005 15:53:15 +0100, Rob Morley wrote:

In article ,
says...
Are proprietary 'Stain block' paints any better than oil-based undercoats?

For what?

Skid marks )

Nah; really water marks on the ceiling after a roof leak.

I reckon an oil-based wood primer will take care of that.