View Single Post
  #5   Report Post  
mark down
 
Posts: n/a
Default

On Sun, 22 May 2005 09:06:03 GMT, Moonshine wrote:

I've had a couple of goes at doing this with the same failed result.

Just trying to base coat plaster patch over some chased in channeling.

When going back to it in the morning it has all just shriveled up and
cracked like a wholemeal biscuit :-(

I've wet the surface before applying.

The house is warm with CH running - could it be drying out too quick?
Could the mix be too dry?

Am I using the wrong stuff - Blue Hawk Undercoat Plaster (which claims
to be non-shrinking!)?

Thanks

Cliff

Bonding coat is probably better for small patching to old plaster but
not vital. Bonding coat also shrinks and cracks but for patching that
means you can put the finish coat on and still get it perfectly flush
with the old plastera assuming you ruled off the patch against the
surrounding plaster Just put the finish on and dont worry about the
cracks -they just improve the key.

M