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sandstone

Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks.Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions.
Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs.Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to tectonic compression within orogenic belts.

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  1. J

    Tiling over a sandstone hearth

    Hi All, Does anyone have a recommendation on how to tile over an old sandstone hearth? I know sandstone is porous and not sure if I have to put cement board down first and if I can attach the board to the sandstone with thinset. Thanks for the help!
  2. P

    I'm Looking For This Tile BCT - Dartmoor Naturals Sandstone Wall Satin Tiles CAN43602

    Hi, I would very much appreciate help in finding the following discontinued tiles, required to repair an existing installation. Manufacturer: British Ceramic Tiles (BCT) Product: Dartmoor Naturals Sandstone Wall Satin Tiles Nominal Size: 250x400mm Work Size: 248x398mm Product Code: CAN43602...
  3. D

    Natural Stone Laying sandstone pavers outside

    First job with this type of stone (have laid floor and wall tiles several times successfully) Sandstone paving (B&Q bought says from India) 300x600 by 20mm thick. Laying on a solid concrete base - little uneven in places, but pretty decent. Small area - about 20 stones half of which will need...
  4. G

    200 mts 20mm semi polished sandstone advice please

    hi, i am a virtually retired tiler (58), legs back hips etc etc. a friend carpenter (65) has been renovating his attached barn for around 5 years (still works full time) he has asked me to help him lay 200 mts, 20mm thick, all 500mm x 1.00mt, 900mm, 850mm down to 600mm but all @500mm one edge...
  5. N

    Newly laid Sandstone patio has faded

    Hi I have recently had a marshalls indian sandstone patio laid. The patio was mainly put down by a somebody who lays flooring predominantly internally, but has put his own driveway in and can turn his hand to pretty much anything. Our patio since being laid has seemed to fade. It was laid a...
  6. W

    I'm Looking For This Tile Looking For Johnson City Sandstone Beige 300x200 (CA0010143)

    I wondered if somebody could help me please? These tiles are in all the rooms with a toilet in, in a 6 year old house. I got the information from the house builder. I don't know if the code is correct. I have seen these tiles but in a bigger size on the net, which is not of much use. I...
  7. D

    Looking for discontinued B&Q tiles Sandstone with code BQSS1A.

    Hi all, can anyone help me, im in need of 3/4 boxes of BnQ sandstone tiles. I have a code BQSSA1. Any shops/warehouse that may still have a bit of stock left?
  8. 1

    Indian Sandstone Picture Framing/Grout marks

    hi all, Had patio done 2 months ago by landscaping co. Slabs are Indian Sandstone ‘Raj Green’. They were varied Autumnal colours prior to grouting, browns/reds/yellows.. Problem is there is a picture frame effect in & around the grout lines. The slabs are bone dry but look wet around the...
  9. G

    Aus white marks on indian sandstone patio

    Hi guys, I recently had an indian sandstone patio installed, it looked great until I tried to seal it. After sealing I have been left with faint white spots on the slabs. I used a flouropolymer sealant which I put down on saturday. I believe this has been caused by the slabs not being fully...
  10. M

    Trowel size for 22mm sandstone flags

    Hi, I am unsure what size trowel to use for the flagstone I have to lay in the hallway. They are 'calibrated' to around 22mm, going to be laid on benfer leaderflex, The substrate is the old tiles which are set in concrete and will be primed for the new adhesive. It is very level and good to...
  11. Geoff Thacker

    UK First time post ....problematic sandstone floor

    Hi all, iv been apart of the forum for a little while now but never posted until now. I’m Geoff and my company is GHL Bathrooms and Tiling we’ve been trading on and off (off when I was paye for a few years) for 15 ish years now around central Scotland. Thought I’d share this job to see if you...
  12. Ttt1601

    Advice on Sandstone sealer

    Hello good people, as the title suggests, I'm looking for advise on Sandstone sealer, got a customer who wants the whole of their down stairs tiled in 22mm thick sandstone, I've done one room and I used lithofin stain stop as per what their tech dept instructed, but the customer isn't happy with...
  13. S

    Pietra Serena Sandstone 800x800mm help

    Hi All.. This is my first post here – I usually lurk around and find this site very useful for general info. I’m looking for some product advice (and general advice) for a tiling job I’m doing at my house. Details Floor Area - 145m2 Tile - 800x800x20mm Pietra Serena Sandstone in light grey...
  14. T

    Grounting Indian Sandstone Over Ufh

    I will be grateful for suggestions and advice on best grout and 'how to' tips for scenario below: 1. Anhydrite liquid screed over wet UFH 2. 22mm indian sandstone installed with Granfix CSR flexi adhesive. Joints approx 10-15mm 3. sandstone is grey and used externally on patio as well with...
  15. K

    Advice Needed Please! Fila Colour Intensifier On Newly Laid Sandstone

    Please help - I know nothing about paving/tiling....!! We have just had some sandstone paving laid in our garden. Following advice, we washed and cleaned off the chalky residue, waited a few days for the sandstone to dry, and then applied 2 coats of Fila colour intensifer (I wanted to stone...
  16. M

    Grouting sawn sandstone internal

    Hello new and in need of help. Fixed a sawn calibrated(30mm) sandstone floor onto anhydride floor using anhyfix. Looks lovely but now need to grout... Cleaned stone with water then sealed with swift seal (as supplied by quarry). Trial area of grout has slightly stained stone. Could anyone...
  17. F

    Advice please - natural sandstone - indoors on anhydrite screed

    Hello, I am pretty new to this forum and would like some help please on laying sandstone indoors. I’ve read up everything I can find that looks relevant first so as not to waste your time :smilewinkgrin: I have a 3.2m diameter circular floor area with anhydrite screed finish and am a laying...
  18. C

    Cement dust on Indian Sandstone HELP!

    Hi, I'm repointing my indian sandstone patio with a dry mix (4:1). Tried a test area first, but when I brush the mix into the joints the dust is staining the sandstone. Is this OK?? I've brushed off as much dust as I can. The stone hasn't been sealed. Any advice would be welcome! Pete
  19. A

    Efflorescence or Sealant problem on Indian Sandstone

    Hi all, I have recently had an Indian Sandstone installed in Oxfordshire, after some thought I decided to seal it, we have parties, we have kids and I have clumsy other half. I waited for around two months to see if there was any obvious signs of Efflorescence, I then washed the patio down left...
  20. T

    White patches on sandstone patio slabs

    Hi there, I've sealed my patio last night and later this afternoon white patches appeared on some of the stone slabs, please, could some one help how I can fix the problem:-(here is a picture of one of the ruined slabs Any thoughts are very appreciated please... Thanks!
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