Floating sand/ cement over painted brick and plinth

johniosaif

Private Member
The customer to be ?? Wants sand/cement and skim over this painted brickwork and plinth , they have sbr’d it before , would you ?
AD47FD8B-3011-4FA5-9F02-20803A02A608.jpeg
 

johniosaif

Private Member
Key surface with an angle grinder, go into your local Johnstone's decorator centre get a bag of key coat primer, give the wall a tight pass and key it then bang your sand and cement on
I told them to grind it or eml , but they’ve done one before and it’s fine ...
 

malc

TPF Special Forces
Parex Parinter renovation render. it is a base coat that can go straight on to painted surfaces.
 
D

Deleted member 23452

Guest
Surely no matter what you prime it with the S&C will only be stuck to the paint? If so that seems like a bad idea to me? Scratch through with a grinder would me at least some contact with something solid enough to hold the S&C.
 

johniosaif

Private Member
Surely no matter what you prime it with the S&C will only be stuck to the paint? If so that seems like a bad idea to me? Scratch through with a grinder would me at least some contact with something solid enough to hold the S&C.
customer was convinced it would be fine , I wasn’t , not at all
 

Ftp321

Well-Known Member
Surely no matter what you prime it with the S&C will only be stuck to the paint? If so that seems like a bad idea to me? Scratch through with a grinder would me at least some contact with something solid enough to hold the S&C.
It's not like it's a lot of paint to grind away at
 

Dollar

Well-Known Member
You are the pro
Tell customer you need to get a key to
Brickwork so will run grinder over it & seal so is more moneys
Get in get out get paid




Your welcome
 
D

Deleted member 32554

Guest
Surely no matter what you prime it with the S&C will only be stuck to the paint? If so that seems like a bad idea to me? Scratch through with a grinder would me at least some contact with something solid enough to hold the S&C.
That's why I prefer mesh , washered screws for peace or mind
 

johniosaif

Private Member
You are the pro
Tell customer you need to get a key to
Brickwork so will run grinder over it & seal so is more moneys
Get in get out get paid


I’d do what I think is right anyway as ever , just that she was so sure

Your welcome
 

malc

TPF Special Forces
Surely no matter what you prime it with the S&C will only be stuck to the paint? If so that seems like a bad idea to me? Scratch through with a grinder would me at least some contact with something solid enough to hold the S&C.

larry, have a look at the Parex Perinter web page. we have used this material for several years. it is used extensively in the renovation of lime and sand and cement render. labour saving.
 

johniosaif

Private Member
larry, have a look at the Parex Perinter web page. we have used this material for several years. it is used extensively in the renovation of lime and sand and cement render. labour saving.
Expensive though Malcolm
 
D

Deleted member 23452

Guest
larry, have a look at the Parex Perinter web page. we have used this material for several years. it is used extensively in the renovation of lime and sand and cement render. labour saving.

I don't doubt it's very good, but all it's doing is providing a key for the S&C to stick to the surface of the paint. So the entire weight of the S&C layer is only held in place by the adhesion that the paint has to whatever's below.

Looking at that picture there are multiple layers of paint which makes it worse as it's depending on how well the top layer of paint is stuck to the previous layer.
 
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