Pond sealer

Garry R · Post by **Garry R** » Wed Aug 09, 2006 1:20 pm

Some time ago a reference was made to using a pond sealer type of "varnish" instead of UCP for sealing before varnishing but I can't remember what the stuff was - perhaps it was Chris who used it on Merlin 36? Any ideas what it is?

Post by **Rupert** » Wed Aug 09, 2006 4:04 pm

There are 2, both of which I have used. they are either G4 and V8, or less likely, V4 and G8...I'm in France at the mo, so can't nip out and check. It is available from garden centres. It has a very short shelf life once opened, and gets thicker and thicker even with the lid back on, so don't buy more than you need and expect it to be there when you need it again!

alan williams · Post by **alan williams** » Wed Aug 09, 2006 4:26 pm

Hi Garry Rupert
The Stuffs G4 Shelf life is't to bad had mine since Christmas and it's still usable.
Ps its far cheaper than varnish lasts better and dries very quickly.
Cheers Al

Garry R · Post by **Garry R** » Thu Aug 10, 2006 9:12 am

Thanks for that and the tip on shelf life - won't order yet then!!

Post by Ed » Thu Aug 10, 2006 1:28 pm

I think the problem with short shelf life is common to all 'moisture cured' coatings. Certainly true of blakes woodseal.

Sometimes they are OK....and other times they just go hard very quickly...even inside a well sealed can.

I have always presumed this was due to any moisture in air....or other debris that might find its way into can. So best to stick to 'best practice'. Decant, clean lid and don't leave open too long. I also sometimes put a bit of appropriate thinner as a film across top of coating. This works quite well for woodseal, don't know about G4 - yet to trial.

cheers

eib