S&C over paint

hail hail

hail hail

Private Member
Been doing few weeks bits and bobs jobs for a family I know and the day after I built this low wall and concreted that sq base, I was asked to scratch that back wall just to use up what stuff I'd left mixed up in the mixer. The wall underneath the scratch coat is in a bad state, thou they just wanted it looking anything better than it was. Thrres also a shed going where you I see it not scratched.
S&C over paint
S&C over paint
S&C over paint
S&C over paint
S&C over paint
Nowey've asked me to render it in an old cottage style render seeing as the wall is all over the place. They didn't want a few scratch costs to straighten it out.

Anyway, theres also a side wall they asked me to render same as the old cottage effect. Told them I'd prefer to strip back the painted render so I could get a scratch coat before my final coat but they are just wanting a cheap job and wanted to know about rendering over the wall as is.

TBH with ya, I've never rendered over a painted wall or even heard of it being done. Anytime we've renewed a walls floating coat, we've always stripped back however seeing this time I know the clients very well and they looking to save on labour. Is there any product I can use to spread on the wall so I can throw a coat on it without stripping.
 
You could run over it with a small grinder to give it a scratch effect,then a blast of a power washer.Then a coat of sbr and scudded while still tacky.
 
Like nicm said grind it, peck it with a kango pointy chisel or there's that everbuild rendergrip.


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hail hail said:
Been doing few weeks bits and bobs jobs for a family I know and the day after I built this low wall and concreted that sq base, I was asked to scratch that back wall just to use up what stuff I'd left mixed up in the mixer. The wall underneath the scratch coat is in a bad state, thou they just wanted it looking anything better than it was. Thrres also a shed going where you I see it not scratched. View attachment 19213 View attachment 19213 View attachment 19213 View attachment 19213 View attachment 19213 Nowey've asked me to render it in an old cottage style render seeing as the wall is all over the place. They didn't want a few scratch costs to straighten it out.

Anyway, theres also a side wall they asked me to render same as the old cottage effect. Told them I'd prefer to strip back the painted render so I could get a scratch coat before my final coat but they are just wanting a cheap job and wanted to know about rendering over the wall as is.

TBH with ya, I've never rendered over a painted wall or even heard of it being done. Anytime we've renewed a walls floating coat, we've always stripped back however seeing this time I know the clients very well and they looking to save on labour. Is there any product I can use to spread on the wall so I can throw a coat on it without stripping.
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2to1 scud with plenty of pva. It will be like steel on the wall. I've did it a few Times no problem. It doesn't matter what you use you are not covered anyway to go over paint. Pva the scud the c**t
 
The client gets what the client wants. This job is built into a sloping site and it's the best I could do with it seeing as they dont want a step. Near lost it. Took a break after the leveling/pour. Sun beating down and dried out quick :(

Will try get that stuff in the bucket. If I can't source it here in the West, will scud with SBR and use the SBR in the mix aswell. Hopefully it'll stay on.
S&C over paint
 
hail hail said:
The client gets what the client wants. This job is built into a sloping site and it's the best I could do with it seeing as they dont want a step. Near lost it. Took a break after the leveling/pour. Sun beating down and dried out quick :(

Will try get that stuff in the bucket. If I can't source it here in the West, will scud with SBR and use the SBR in the mix aswell. Hopefully it'll stay on. View attachment 19217
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It will stay on with the pva mixed in the scud.
 
hail hail said:
How
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Wizz over surface with a light scabbler or a grinder with a wire head. Remove any loose paint, pressure wash. Sbr slurry and scud or apply a wet coat of tyrolean (with sbr through that mix as well) will give you a solid key , personally I use silver sand with lime so you can put a real tight scratch on
 
Years ago before I was on the forum and less knowledgeable I grinded lines into a wall and used pva and two coat rendered on to it, it stayed on somehow :rayos: embarrassing really
 
:whistle:
Cornelius said:
Years ago before I was on the forum and less knowledgeable I grinded lines into a wall and used pva and two coat rendered on to it, it stayed on somehow :rayos: embarrassing really
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Back in the 80's I rendered over a few painted walls after priming them with PVA and neat cement. We used to get some really cold winters then as well. As far as I know they've all stayed on ,well no ones phoned up !
 
bill said:
:whistle:
Back in the 80's I rendered over a few painted walls after priming them with PVA and neat cement. We used to get some really cold winters then as well. As far as I know they've all stayed on ,well no ones phoned up !
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I still have a scutch hammer knocking about somewhere ... but wouldn't know where to get the little jagged blades to put in it now?

I spent many an hour scutching painted brickwork in me yoof.
 
PlanB said:
I still have a scutch hammer knocking about somewhere ... but wouldn't know where to get the little jagged blades to put in it now?

I spent many an hour scutching painted brickwork in me yoof.
Click to expand...
Jewsons and TP do the blades
 
PlanB said:
I still have a scutch hammer knocking about somewhere ... but wouldn't know where to get the little jagged blades to put in it now?

I spent many an hour scutching painted brickwork in me yoof.
Click to expand...

Yeah I had one of those but could never find replacement scutch's
 
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