In article ,
405 TD Estate writes:
When plastering a brick wall the plaster has cracks in it when drying
- it this because I should have use a paint on barrier? If so what is
the trade name of a suitable barrier?

Will the cracking affect the ability of the plaster to remaining stuck
to the wall? - the finish doesn't matter (and it needs more coats
anyway) as I will be tiling over it.

What plaster did you use?
What type of wall (particularly water absorbtion)?

Plaster shrinks as it sets. Too thick a layer can crack.
It won't matter in bonding coat. Make sure the finish
coat is a thin layer (which shrinks by getting thinner)
rather than a thick layer which will also crack across.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]