"Simon Hawthorne" wrote in message
...
Hi

I'm told there is some sort of sealant I can paint on external walls
that will help repel water, and hopefully prevent damp getting into
the walls.

I can't find anything on the internet - can anyone help?

Thanks in advance

Simon
Thomsons Waterseal if you want a clear coating. Onle effective on bare brick
or masonry where it can penetrate freely, and, boy does it penetrate. Best
done in the summer when the wall is bone dry. Think in terms of 10 or 20
litres rather than retail sizes. www.sovchem.co.uk
Use a solvent based masonry paint like Johnstones Stormguard if the walls
are already painted.