damaged DPM in floor slab

[pugsman0]

Hi
I have to re lay some pipes in the ground floor slab in a new location and damage to the DPM has occured. It will not be possible to join a new piece of DPM to the old piece. Can I get some sort of waterproof paint or coating to put on the newly exposed concrete prior to re screeding
Or what is the best method for relaying the screed whilst maintaining the damp proofing?
Many thanks.

 

[gregers]

3 coats of synthaproof last coat blinded with sand,or a couple of coats then stick some dpm over the top.

 

[davebelushi]

vandex bb75e is pretty good in that situation. just brush apply it.