i've recently replasterd my kitchen/dinner as the walls where in a pretty tatty state I was initially pleased with the out come but after a week or so I have noticed areas that have developed Hair line cracks This has never happened to me before And although they are fillerble it sort of defeated the point of me skimming the walls The only thing I can think of is I have used to weak a solution of unibond or I have over mixed the plaster any Ideas? 
