[gwrightson]

]Can any body recommend a suitable quality sealer for sandstone?
I have a full house to clean and they are requesting a sealer on all of the house.

Budget does not appear to be a problem to them, they just bought the house and want it all doing. A couple of pics so some idea

Geoff 
ps well I would if it allowed uploads

[BDCS]

I used Enhance and seal from Kevin ( I think, ask him ) and that was easy to apply, looked really good and still does a couple of years later. The customer was very pleased.

[richywilts]

what does the sealer do to the look of the sandstone??

[BDCS]

It makes it look like it does when its wet - it enhances the colours and seals. No idea why they called it "enhance and seal" though. 

[gwrightson]

Thank you for reply,
Before I quote for the sealing , do you have an idea of price and coverage?  I know that sandstone can be very porous so it is a case of rough pricing and it is a very large house .
Geoff

[chris scott]

Teflon…£7 per sqm.

[gwrightson]

Thanks Chris,
when you say Teflon, what product are you referring to? and is the £7.00 per sq.metre the cost of product or the price I should be quoting.
Thanks geoff

[chris scott]

Thats the price to seal (including product) Cleaning needs to be priced separately according to soiling.
Can't recommend any products due to advertising restrictions….Kevin Martin would rip anything apart I suggested anyway.
Here is some bedtime reading                            http://www.stoneworld.com/articles/82540-sealers-help-stone-stand-the-test-of-time
We use a water based Teflon by DuPont.    http://www.dupont.com/products-and-services/plastics-polymers-resins/fluoropolymers/brands/teflon-fluoropolymer-resin.html

[gwrightson]

Thank you again Chris ,
I will look at the options. 

As for pricing the cleaning  I do need to go and  take a more detailed look[
Geoff

[Kev Martin]

Thats the price to seal (including product) Cleaning needs to be priced separately according to soiling.
Can't recommend any products due to advertising restrictions….Kevin Martin would rip anything apart I suggested anyway.
Here is some bedtime reading                            http://www.stoneworld.com/articles/82540-sealers-help-stone-stand-the-test-of-time
We use a water based Teflon by DuPont.    http://www.dupont.com/products-and-services/plastics-polymers-resins/fluoropolymers/brands/teflon-fluoropolymer-resin.html

Chris

I am not ripping anything apart you say!  The 1st article that you are referring to is over 14 yeaqrs old and recommends Aqua Mix Products which are virtually now not available anymore in the UK or Europe and the 2nd article by dupont mainly refers to non stick frying pan coatings.  The sad fact is that Miracle are 20 years ahead of all this technology.  Miracle Seal & Enhance is the way to go and the cost per M2 for this product is around £0.54 per M2 plus application which we cdharge around £3 per M2 for which results in it being half the cost of what you are suggesting with the closest Dupont product.

Kevin

[chris scott]

The article was more intended so the poster could get an intro into different types of sealers and  uses.
I did not mean it as a direct comparison of manufacturers and products.
£7 per sqm is what we charge. We use specialised equipment to coat vertical surfaces…somebody is going to pay for this technology.
 I struggle to see how you will coat the rough textured vertical surface of that house with a paint pad.

[Kev Martin]

The article was more intended so the poster could get an intro into different types of sealers and  uses.
I did not mean it as a direct comparison of manufacturers and products.
£7 per sqm is what we charge. We use specialised equipment to coat vertical surfaces…somebody is going to pay for this technology.
 I struggle to see how you will coat the rough textured vertical surface of that house with a paint pad.

Chris

I know you didn't mean to compare products but if you put links up that old then people will take them as gospel.

I did not realise the surface was that rough!  Have you seen photos of it?  What specialised equipment do you use because Enhance and Seal can be sprayed as well with the it on mist provided you have the right weather.  Is it what we discussed before  where you have modified stuff for Algoclear?

Kev

[chris scott]

The article was more intended so the poster could get an intro into different types of sealers and  uses.
I did not mean it as a direct comparison of manufacturers and products.
£7 per sqm is what we charge. We use specialised equipment to coat vertical surfaces…somebody is going to pay for this technology.
 I struggle to see how you will coat the rough textured vertical surface of that house with a paint pad.

Chris



I did not realise the surface was that rough!  Have you seen photos of it? 
Kev

Yep…it looks rougher than  a smack head on Giro day. 
At "your" suggested coverage rates for that product you would have to atomise it to spray it. (based on suggested rate min 50sqm per litre)
Do you think you could get an even coverage ? Not having a go at you …just asking a question.
I have carefully worked out flow , pressure and droplet size for the products/ equipment  we use. ….

[Mike Halliday]

Geoff how are you going to clean that house? In particular  those cills and lintels.

I know very little about sealing (and someone else might chip in) but you will need to use Breathable sealant that allows moisture to exit the stonework as any moisture that gets behind it will have no where to go apart from inwards, also a building of that age will not have perfect brickwork and mortar, so if it is a bit crumbly  then applying a sealer will be pointless as it will just flake away.

If you seal that building you are asking for trouble down the line especially as you are talking about them paying a decent amount

[gwrightson]

Not some thing I have considered yet Mike if I am been honest, but you do have a point, at the moment I am just trying to get a quote together .
I will how ever take the point into consideration and I am sure there must be suitable sealants out there, I am sure this type of work has been carried out before.
They are supplying a cherry picker to do the job.

Geoff