White stains - Stains on slabs

Patio flagstones (slabs), concrete flags, stone flags including yorkstone and imported flagstones.
RAPressureWashing
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Post: # 105270Post RAPressureWashing

Itsmeimhere wrote:I'm pretty sure it was dry before sealing, or atleast the surface was dry!! I don't think a acid was used. I used a premix Karcher patio cleaner solution so I'm not sure if that had anything in it. Do you think it can defiantly be fixed or is it buggered?? Do you think Thomsons will accept any liability.
Okay, surface may have been dry but still been some moisture in the paving?

I don't know what is in the Karcher cleaner sorry.

Yes it is fixable won't be cheap though, would Thompson accept any liability? I don't know, as from the photos you have shown, does look like a bit of moisture/dampness hasn't helped the issue and that could be their argument?
Roger Oakley BDA(Europe)Member 2006
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Itsmeimhere
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Post: # 105274Post Itsmeimhere

Many thanks for your time Roger. I have sent a email to Thomsons about this but I won't hold my breath!! I can't believe that they sell this product knowing the impact that it could potentially have.
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lutonlagerlout
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Post: # 105276Post lutonlagerlout

a quick google tells me the karcher stuff is just a detergent
so looks like you have sealed in moisture
as roger says it is gonna be a PITA to put right
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Tony McC
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Post: # 105317Post Tony McC

Just out of interest, what's the solvent for removing Patio Ruiner?
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RAPressureWashing
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Post: # 105364Post RAPressureWashing

Tony McC wrote:Just out of interest, what's the solvent for removing Patio Ruiner?
Fot Thompson's patio crap, I use Miracle coatings remover, used to use Aqua-Mix but they have pretty much stopped selling in the UK, the solvent remover is used with a low speed rotary cleaner medium brush, the one thing with the Thompson's is it goes like a glue once the stripper starts to go like a glue, so on a patio of say 40 sq meters I end up having to throw away a brush as they are f**ked so £80.00 odd out the window. BTW any decent sealer or coatings remover will remove the rubbish sealer.After removal, we re-clean & re-hone the surface before re-sealing etc.
Roger Oakley BDA(Europe)Member 2006
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lutonlagerlout
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Post: # 105367Post lutonlagerlout

did you ever look at this mob roger?
http://www.stripperspaintremovers.com/
their stuff is really strong
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Itsmeimhere
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Post: # 105394Post Itsmeimhere

I notice that these products are acid based. Will that not make the problem worse on limestone being as they are alkaline based??
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RAPressureWashing
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Post: # 105395Post RAPressureWashing

Itsmeimhere wrote:I notice that these products are acid based. Will that not make the problem worse on limestone being as they are alkaline based??
Which ones are acid based?
The thing is, if you have a Limestone paving that has been ruined by either the home-owner using the wrong products or contractors doing the same, we have to re-etch the surface using certain acid's to get the paving to balance out again prior to sealing but not the old favourite "Brick Acid" which is the one that will screw your Limestone up. Limestone is a Calcium based stone if I'm correct.
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lutonlagerlout
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Post: # 105398Post lutonlagerlout

itsmeinhere apologies mate I was talking generally to roger about paint removers
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RAPressureWashing
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Post: # 105401Post RAPressureWashing

lutonlagerlout wrote:did you ever look at this mob roger?
http://www.stripperspaintremovers.com/
their stuff is really strong
LLL
LLL

Cheers for the link, I think you put it up before but I forgot to bookmark it, yes they do look like they do so decent coating removers most seem to have DCM in them which is a good chemical but nasty to use so great care is needed when using.
Roger Oakley BDA(Europe)Member 2006
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Itsmeimhere
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Post: # 105403Post Itsmeimhere

Just reading on the miracle data sheet and it's talking about IT being an acid, I maybe looking at the wrong product though. :D
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RAPressureWashing
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Post: # 105406Post RAPressureWashing

Itsmeimhere wrote:Just reading on the miracle data sheet and it's talking about IT being an acid, I maybe looking at the wrong product though. :D
You must be reading the wrong MSDS it's Mira Strip from Miracle you would use to remove sealers/coatings it's solvent based not acidic they do a water based one too. I have used both.
Roger Oakley BDA(Europe)Member 2006
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Itsmeimhere
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Post: # 105480Post Itsmeimhere

I have had a response back from Thomsons

I have now had the opportunity to discuss your case with a senior team member.

My colleague has advised that these white patches have been caused by problems with the jointing compound used.

My colleague's advice to you is to scrub the affected areas in a circular motion with white spirit.

In addition to this I will send you some replacement High Performance Patio and Block Paving Seal to repeat the same process on the affected areas.

If you are happy to accept this offer in resolution of your complaint, please let me know by return.

Also I would appreciate if you could supply me with a contact telephone number for our carrier.

I look forward to hearing from you.

Kind Regards

Helen.
Technical Services
Sherwin-Williams
Diversified Brands Europe
Tel: +44 (0)114 2409 469
Sherwin-Williams Diversified Brands Ltd, Registered in England 02968830, Registered Office : Thorncliffe Park Chapeltown, Sheffield, S35 2YP
Take life as it comes

RAPressureWashing
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Post: # 105489Post RAPressureWashing

Itsmeimhere wrote:I have had a response back from Thomsons

I have now had the opportunity to discuss your case with a senior team member.

My colleague has advised that these white patches have been caused by problems with the jointing compound used.

My colleague's advice to you is to scrub the affected areas in a circular motion with white spirit.

In addition to this I will send you some replacement High Performance Patio and Block Paving Seal to repeat the same process on the affected areas.

If you are happy to accept this offer in resolution of your complaint, please let me know by return.

Also I would appreciate if you could supply me with a contact telephone number for our carrier.

I look forward to hearing from you.

Kind Regards

Helen.
Technical Services
Sherwin-Williams
Diversified Brands Europe
Tel: +44 (0)114 2409 469
Sherwin-Williams Diversified Brands Ltd, Registered in England 02968830, Registered Office : Thorncliffe Park Chapeltown, Sheffield, S35 2YP
Ask them to come down and do this for you, White spirt and scrubbing with what? a brillo pad FFS
Good luck with this mate, all this proves to me is their stuff is no more then a cheap acrylic sealer which is absolutely useless for natural stone (so a surface sealer) and all the white sprit will do is just possibly release the moisture and drop their crap sealer back down again once it evaporates same as you do with PIC sealers that get moisture under the sealer.
But as I said get their "Experts" to come down and do this and then re-seal, and getting a finish say as in the photos I put up after removing this shite. Don't mean this to sound big-headed but I've been doing this a long time and their idea of resolving this sounds bollocks.
Roger Oakley BDA(Europe)Member 2006
R&A Pressure Washing Services Ltd
info@rapressurewashing.co.uk
www.rapressurewashing.co.uk

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