Tim S wrote:
Tim S coughed up some electrons that declared:

Ball have an epoxy DPM called F76 - have you come across this?
Claims to deal with rising damp (if any) and it's not *that*
expensive. There's also Stopgap 900 which is used under F76 should
the substrate be too bumpy to coat well (that'll be the old wall
base and the bit in front of the fire).

Then P131 and Stopgap 300 to top off.

Wonder why they didn't mention those yesterday - I'll ring them
again and put it too them. Need scarifying but with the ease the old
crap is coming off, taking much of the Blackjack with it, that
shouldn't take long with a suitable machine.

Ideally, I'm keen to use a system that finishes with a product I
know, for obvious reasons

OK - good news...

After a chat with F Ball, the system that they said would work is as
follows:

Scabble/scarify to take of all of the black junk;

Smooth off any very rough bits with Stopgap 900 direct to base.

2 coats of F75 (variation here on my initial theory)

P131 and Stopgap 300 as required to flatten.

They said that will cope with any damp that may be present, and stop
it dead and will be happy under an impervious covering.

Now I need to go finish cleaning the floor, take a survey of heights
and estimate materials, but initial measurements suggest 15kg F75,
bag or two of 900 and perhaps 6-8 bags of 300 and 5l P131.

All in it's shouldn't work out too bad on cost...

Cheers

Tim

HMMmmmm.....
8 stopgap 300 @ £20 = 160
sg 900 ? = about £15
f75 = £66
p131 = £25
Scarifier = £70

Total = £336

Don't forget to add on your other initial costs regarding this floor, and
don't forget that the DPM may or may not work, for any length of time, and
it's still uninsulated :-p

Skip = 80
concrete = 150
dpm = 15
insulation = 50

Less than £300, brand new floor, dry, warm, flat, solid and above all,
cheaper.

--
Phil L
RSRL Tipster Of The Year 2008