Question 1

Put one coat over damp patch, 2 days later added 2nd coat, now 2 days later all the sealant has cracked - why?

Accepted Answer

Polycell Damp Seal Paint has been specially formulated to seal patches of penetrating damp on interior walls and ceilings in just one coat, preventing them from showing through and spoiling decorations. Cracking tends to happen if the product has not dried out.

Question 2

Is it ok to plaster\skim over the treated area?

Accepted Answer

My artexed ceilings were recently plaster-skimmed. The contractor recommended that I first coat a stain from a plumbing leak with "stain-block". Before skimming the ceilings, he scraped the texture from the artex and then applied a solution of PVA adhesive (it may have been Uni-bond). Hence the plaster skim was applied over the PVA solution which was over the stain-block. The stain has not re-appeared.

Question 3

Can i put this on painted walls?

Accepted Answer

In theory you can. Please be very careful though, as when I used it I ended up with a far worse situation than I had started with. To begin with, I applied one coat of damp seal on a painted wall, but it didnt work, and the bubbles in the paint kept coming back. Eventually I resorted to six coats of damp seal on a wide area of wall, not just the affected area,allowing a couple of days between each coat, followed by three coats of emulsion, and it still didnt work. On the contrary, the damage just kept getting worse. I might just have been unlucky, but please think very carefully before wasting your hard earned cash on this completely useless product!

Question 4

Can i apply damp seal to the spot which has water stain only, instead of applying damp seal to the full wall?

Accepted Answer

Yes you can. what I would do is dry the spot with a hair dryer then lightly rub it off with fine sandpaper then apply dampseal give it a couple of coats , let it dry between coats

ASIN	B001EJ1X5M
Best Sellers Rank	7,228 in DIY & Tools ( See Top 100 in DIY & Tools ) 139 in Sealers
Brand	Polycell
Colour	white
Compatible Material	Plaster, Drywall, Concrete
Customer Reviews	4.5 4.5 out of 5 stars (3,295)
EU Spare Part Availability Duration	1 Years
Global Trade Identification Number	05010212505885
Included Components	POLYCELL DAMP SEAL 1LTR
Item Dimensions	13.2 x 10.7 x 10.8 centimetres
Item Form	Liquid
Item Type Name	POLYCELL DAMP SEAL 1LTR
Item Weight	1.48 Kilograms
Manufacturer	ICI Paints Akzo Nobel
Manufacturer Part Number	PLCDS1L
Material	Plastic
Model Number	PLCDS1L
Number of Items	1
Number of Packs	1
Style Name	Single
Surface Recommendation	Wall
UPC	790295693352 798256159909
Unit Count	1.0 count
Water Resistance Level	Water Repellent

Polycell One Coat Damp Seal 1L

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