Indian Sandstone (UK)

[Roger Oakley 14]

Here's a before and after photo of some Indian sandstone I've just cleaned.

200 sq mts. It took 60 liters of Sodium Hydrochloride, to clear the Black Mould, that seems to be around these houses. Also one of the worst water pressure's I have come across (no pressure) Owners want the Teak furniture restored at a later date.

Roger

[McMoo 14]

Great work looks real good!

[Russ Spence 76]

nice work

[RPetry 564]

Roger,

Looks great, is Indian Sandstone from India?

A quick conversion shows ~ 2125 sq. ft. and 16 gals. of bleach. Did this 16 gals. include water to dilute the bleach or are you saying it took 60 liters of say 12.5% sodium hypochlorite? If so, that "black mould" must be some really tough stuff.

[Roger Oakley 14]

Roger,

Looks great, is Indian Sandstone from India?

A quick conversion shows ~ 2125 sq. ft. and 16 gals. of bleach. Did this 16 gals. include water to dilute the bleach or are you saying it took 60 liters of say 12.5% sodium hypochlorite? If so, that "black mould" must be some really tough stuff.

Rick,

It was neat 15% bleach, Black Mould can be a pain to shift, it really gets deep into whatever you are cleaning. I had tried a couple of weaker mixes but to no avail.

Some Indian Sandstone the real expensive/good quality stuff does come from India, but there is a lot of "copies" about that have been no closer to India then the local take-away india resturant. This one cost somewhere in the region of £5-6000 GBP, so I really needed to treat this one will kid gloves.

[WEW 14]

Beautiful!!

[Chappy 138]

I hope you suggested sealing to keep it that nice.

[Roger Oakley 14]

I hope you suggested sealing to keep it that nice.

Hi Jon,

You don't really seal Indian sandstone, it's to porous for one, plus sealing would take away the feel of the stone make it sort of false.

This stuff is really just high maintenance, needs to be cleaned say twice a year to keep it looking this good, this one had not been cleaned since new about 3-5 years owner thinks.

Roger