"BigWallop" wrote in message
...

"Grunff" wrote in message
...
Niel A. Farrow wrote:
I recently asked about the new damproofing cream. Not much response. I
searched the web but not much info there.

Anyone suggest where to get info from, or missed my last question and
can
offer some opinions about it.

WTF is damp proofing cream? What part of the body is it applied to?

--
Grunff


I think it's this stuff :

http://www.safeguardchem.com/Damp/dryzone.htm

but as far as I've seen and heard, it's garbage, and only stays local to
where it is applied instead of spreading out like the thick jelly
injection


I installed a DPC - it wasn't jelly, looked like and smelled like white
spirit - very thin.

stuff that penetrates in to the stonework better, and can actually push
out
the moisture that's already there.

I've also heard of a new technique which is beginning to take over on the
continent. Seemingly it consists of wedging the stonework and digging out
the old mortar, then replacing it with a damp proofing mortar that is
injected in to where the old mortar was removed.

The old methods in UK are :
1. use a masonry saw - cut 12- 18" sectiuons and insert a new DPM
2. electro osmosis - run an earth wire around, and ground it well (only used
inside to my knowledge)
3. drill and insert at an angle porous ceramic tubes - allows water to leach
out under hydrostatic pressure - think this has discontinued in use.


Rick