Floating sand/ cement over painted brick and plinth

[johniosaif]

The customer to be ?? Wants sand/cement and skim over this painted brickwork and plinth , they have sbr’d it before , would you ?

 

[Ftp321]

The customer to be ?? Wants sand/cement and skim over this painted brickwork and plinth , they have sbr’d it before , would you ?View attachment 42347

No

 

[lurpak]

Is that your neighbours house

 

[Ftp321]

No

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

 

[johniosaif]

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 ...

 

[Ftp321]

I told them to grind it or eml , but they’ve done one before and it’s fine ...

That stuff that I've mentioned is high polymer with fibres in it it's only 12 quid a bag

 

[Ftp321]

That stuff that I've mentioned is high polymer with fibres in it it's only 12 quid a bag

Sticks like s*** to a blanket literally

 

[Djr]

The customer to be ?? Wants sand/cement and skim over this painted brickwork and plinth , they have sbr’d it before , would you ?View attachment 42347

Yes only if it has rendaid on it 1st . This is over painted brick its stuck like fuk

 

[Deleted member 32554]

I'd mesh lol

 

[malc]

i would use Parinter as a scratch coat. bed fibre mesh in if cracked. EML is a thing of the past.

 

[johniosaif]

i would use Parinter as a scratch coat. bed fibre mesh in if cracked. EML is a thing of the past.

Can you do that as one coat ( monolithic) or wait a day ? Who sells parinther?

 

[malc]

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

 

[johniosaif]

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

Can you go over it straight away with render ?

 

[Deleted member 23452]

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]

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]

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

 

[Deleted member 23452]

customer was convinced it would be fine , I wasn’t , not at all

As long as that's in writing somewhere, fine. I can't begin to imagine how many fcuk ups have been preceded by "it worked fine last time".


Link Removed

 

[Dollar]

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

 

[johniosaif]

It's not like it's a lot of paint to grind away at

True

 

[Deleted member 32554]

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]

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

 

[plastererpeter]

needle gun the paint off first

 

[beader]

i would use Parinter as a scratch coat. bed fibre mesh in if cracked. EML is a thing of the past.

Unbelievable....

 

[malc]

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.

 

[malc]

Can you go over it straight away with render ?

no, you have to let the Perinter cure.

 

[johniosaif]

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

 

[malc]

Expensive though Malcolm

i am not concerned about the cost, that is just passed on to the client.

 

[Ftp321]

Grind the paint off key coat primer

 

[Deleted member 23452]

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.

 

[Deleted member 14228]

That's why I prefer mesh , washered screws for peace or mind

Yes ex met all the way and stainless steel screws