Heres one for the domestic lads mostly,youve all seen external scrim cloth,big rolls about a metre wide and probably 50 metres long,anyway if your doing a rescim to a bad surface ie old artex;old lath walls and such try bedding a layer of scrim onto the whole wall on the first coat then secound coat as norm,it straightens out walls that might have otherwise needed a bonding coat,it will also give a mint finnish and it just wont crack.
all the best ,gmw.
all the best ,gmw.