Re skim blowing

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Excalibur

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Jus re skimmed a bungalow pva'd all walls a skimmed thru like a million times before, 2 weeks have passed an customer has started painting an I get a call about blown plaster I pop in an on 2 walls its like the paint has soaked in an the skim has blown in patches... I've never had this before.. Any ideas as to what may have caused this!? I've hacked the 2 walls off today an used febond blue grit an going to re skim them tomorrow.. Bit embarrassing
 
alright excalibur u shouldnt have know trouble with blue grit bud sticks like **** that stuff bud .what part of west sx r u from mate
 
I've used the blue grit b4 on silk paint no problem, but this background wasn't silk 99% of the time I use pva without any problems till this job as say only 2 walls out whole 2 bed bungalow, bit embarrassing not aving the answer as to why it failed for the customer all I could is correct it for him,Worthing mate
 
[QUOTE =Excalibur;852680]Jus re skimmed a bungalow pva'd all walls a skimmed thru like a million times before, 2 weeks have passed an customer has started painting an I get a call about blown plaster I pop in an on 2 walls its like the paint has soaked in an the skim has blown in patches... I've never had this before.. Any ideas as to what may have caused this!? I've hacked the 2 walls off today an used febond blue grit an going to re skim them tomorrow.. Bit embarrassing[emoji15][/QUOTE]

Was it in the kitchen the walls had the problems
 
Background was the old grey finish with a few painted areas all walls where the same its baffled me as to why just these 2 walls ave blown.. As say never had it happen before, luckily the customer understands jus left me a little red faced
 
All of the above can cause the problem you've just got to scrape the walls as much as possible and pva or thistle bond the **** out of them and just hope.. it's happened to me before I think it was down to the walls being greasy/yellow down to them being big smokes in the house. I cleaned the walls down before I gave it 2 coats of pva but it still came off in bits soon as the paint/ rollers hit it so I went back and scraped it back thistle bonded it and skimmed it again and it was fine [emoji106]
 
Iv always. Keyed the plaster with a Stanley. And used pva and Bonding before 2coats of Skim on all re skims. Never used the blue grit. Are you able to coat on the blue grit then just 2 coats of Skim? Would save me a hell of a lot of time.
 
Years using just pva on 99% of my work never had a problem (that I no of) but this happening has done my head in lol, I've always questiond it in my head pva'ing artex ceilings then skimming an how good it actually keys.. But blue grit is a pain in the arse to use to thick not sure if any tricks to thin it down at all without it looseing it's purpose????! An it's not always practical to get in prep an grit then go back the following day to skim.. If I've got say just a ceiling to do I get in sheet up scrape it pva it go for breakfast then come back an skim.. So pva has always been the one.. I read that SBR used 50/50 with pva an kiln dried sand is good but never tried it myself anyone tried this!?? My whole way of doing things is now being questiond in my head arrrggggghhhh lol:RpS_scared:
 
Excalibur said:
Jus re skimmed a bungalow pva'd all walls a skimmed thru like a million times before, 2 weeks have passed an customer has started painting an I get a call about blown plaster I pop in an on 2 walls its like the paint has soaked in an the skim has blown in patches... I've never had this before.. Any ideas as to what may have caused this!? I've hacked the 2 walls off today an used febond blue grit an going to re skim them tomorrow.. Bit embarrassing
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i no its a pain in the ass but use bondit green everthing pva is hit and miss now years ago people used one coat paint on new plaster not knowing it needed to be sized first or had no idea wat they were doin bond it cuts out all this **** had lots probs before paint peeling of in sheets ect ect everyjob i do now its greened if theres paint no come backs
 
After scraping all the skim of an applying febond blue grit yesterday then re skimming it today during the 2nd coat it bubbled in a few areas I cut it out an the painted areas where coming away it was like it had never had a mist coat an the paint in areas jus hadn't keyed.. That blue grit is a pain in the arse to use is the bondit a better product? It's been a headache:RpS_confused:
 
Excalibur said:
After scraping all the skim of an applying febond blue grit yesterday then re skimming it today during the 2nd coat it bubbled in a few areas I cut it out an the painted areas where coming away it was like it had never had a mist coat an the paint in areas jus hadn't keyed.. That blue grit is a pain in the arse to use is the bondit a better product? It's been a headache:RpS_confused:
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georgemealy and you yourself answered your own question. If it's not mist coated the paint will shell off . If your original skim is stuck to the paint but the paint has shelled off the wall it's the customers problem not yours. Your plaster has stuck to the substrate
 
Hello irish_spread shamefully only sussed what was going on yesterday as I had scrapped the wall over an pva'd originally no problem skimmed no problem it blew 2 weeks after once the customer had started painting, never had that happen before I shall certainly be very aware in the future maybe years of scrapping over pva'ing then skimming without problems made me a little complacent.. I put it right free of charge to try save my name haha
 
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