Bad decisions…advice needed

ndsf1000

New Member
On the hottest day of the year I decided to make my DIY return to plastering. It was a newly overboarded ceiling in a hot house with poor insulation in the roof.

After a bit of a delay I started at 11am, temperatures already rising. As I was starting I must have spilt a few litres of water out of my bucket which ended up with my wife telling me we had a water leak and the mains needed to go off. So I lost a few minutes isolating the water and dealing with that. All in all a terrible start.

I throw the first coat up, all is going well but plaster is stiffening quick and going off before I can make it round the room. I continued at speed thinking all would be fine. I make my second mix and as soon as I go for coat two it is clear the water is being sucked straight out of the plaster. I ditch the effort realising this is futile. I re-wet some of the plaster and try to smooth out roughness of the 1st coat, thinking I might just have to see what I can salvage with a 1 coat finish.

I left the house after clearing up and returned a few hours later to find extensive crazing.

Ultimately this was a series of s**t decisions but I guess the upside is I learnt a lot in the process.

My thought now is whack on a good layer of bond-it pre grit and skim with a single layer. If that doesn’t work, ripping down the boards and starting from scratch will be necessary. But for the price of a bag of multi finish I may as well try to fix with a skim and see where I end up.

Any help would be appreciated.
 

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On them rare hot days. :rolleyes:


You might need to scrape off before any priming.
When the moisture evaporates that quickly, it doesn't key as well either.

Tap - hollow? Take off.

All in all a good day of learning.
 
As long as you had fun that's all that matters ;) All jokes aside as a fellow DIY plasterer it's so hard. I'm not touching any plastering in this heat.

Out of interest did you use any Extra Time? If not would be worth using for your next go whichever you choose to do.
 
As long as you had fun that's all that matters ;) All jokes aside as a fellow DIY plasterer it's so hard. I'm not touching any plastering in this heat.

Out of interest did you use any Extra Time? If not would be worth using for your next go whichever you choose to do.
Yeah I used extra time, it achieved nothing in the heat.
I hadn’t realised until later that the boards in the ceiling were so warm. It was cooking the plaster as I applied it.
I’ve since been told to avoid multi finish with batch number B2, which seems to be setting fast…I had bags from this batch.
 
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