Plastering & Rendering

Hairline cracks in mist coat.

Anonymous user 03/03/2024 - 3.24 PM

Hi all had previous post on help on mist coat, I followed the advice to a T. Wiped bare plaster as suggested before painting with macpherson eclipse watered down by 40 percent as per tin. I have now got round to “de nibbing” with 240 fine sand paper and filling (not much required) and have noticed a few hair line cracks in the mist coat. This has worried me quite a bit as I made sure to do everything correctly this time, is it my mist coat of paint that has cracked or is it tiny cracks in the plaster? There is about 5 hair line cracks 2 each where the radiators where fitted, on two of these I can follow the crack down to the bottom bare plaster and it looks like it joins in which makes me think it is the plaster skim.. Can anyone give me some advice on how to tackle these should I try fill them then paint over? Or paint over and hope it fills them. Also should I water the next coat of eclipse was hoping to do a second coat tomorrow? EDIT 1: It is on a re skim. Can anyone recommend me a good filler? or should I use something like caulk Edit 2: de nibbed the whole two rooms with sand paper and it brought out about 3 more hairline cracks, mainly around the door frames/window sill. I have purchased some easifil 20 and plan to widen cracks with a stanly and fill today, is this the stuff I need or should I purchase a fine filler? Also how deep should I go with the knife; I don’t want to do too much damage as they are very fine. Thanks in advance.