How do you point Indian sandstone?

What do you use to point Indian sandstone?

Mix the sand and cement together adding water as you go to get a near-liquid consistency and then you can begin pointing the area. It is advisable to have two trowels – one for removing mortar and the other for pushing it down into the joint and firming it down.

What’s the best mix for pointing slabs?

3: Mortar preparation

  • Lay the paving slabs on a full mortar bed, which should support the whole slab, not just the corners.
  • Use a mortar mix of 6 parts sharp sand to 1 part cement.
  • Mix together with just enough water to make it damp and workable, but not overly wet and runny.

How long do you have to wait to seal Indian sandstone?

Whether you choose to seal before or after laying, most sealants require a period of at least three dry days with a temperature of 10°C or higher so the slabs have had plenty of time to thoroughly dry out, as any moisture on or within the slabs can sometimes cause unpredictable results.

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Can you sand Indian sandstone?

The stone paving slabs that are used on the steps are made from sandstone. This is quite a soft type of stone that allows it to be sanded down quite easily.

Can I use sharp sand for pointing slabs?

Some installers like to use a coarser or sharp sand, but this can result in a rough-looking finish when used for dry grouting. Due to its versatility, Sharp Sand is a good garden all-rounder. Ideal for screeds, renders or concrete, Sharp Sand can also be used when laying slabs or block paving.

How do you fill gaps between slabs?


  1. Use a completely dry surface.
  2. Put together a 4:1 (though some use 3:1) mix of builders sand and cement (do not mix with water!)
  3. Brush across the whole area using a softer brush, filling all slab gaps evenly.
  4. Compact the mix into the gaps with a trowel.
  5. Repeat as above until all gaps filled and mix brushed off slabs.

Should I use sharp sand or builders sand?

Most people use sharp sand over builders sand for floor screeds, fine concrete work and laying paving courses. In addition, sharp sand can also be used as a top dressing for lawns, as it provides good drainage.

Can I use a pressure washer on Indian sandstone?

Washing Indian sandstone slabs with a pressure washer is easy – just follow these steps: Remove furniture from your slabs. Sweep the area clean. Connect your power washer with a tap and turn on.

Does sandstone paving stain?

When your sandstone patio or garden area is first laid it looks pretty and pristine but after a while, you may begin to notice some staining. … The stains are likely to be minerals coming through, so they’ll be primarily salts which should go in time as regular application of water will wash them out.

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Which grout is best for outdoor tiles?

Most outdoor applications call for a sanded grout, which is used for grout joints 1/8 inch or wider (for smaller joints, you can use unsanded grout). Cement-based grout used outdoors must be rated for “no efflorescence” to ensure that the grout won’t effloresce or lose moisture and develop a chalky white residue.

Can you point a patio in the rain?

Laying a patio in heavy rain can cause real problems. The cement can become saturated causing level paving slabs to move and sink. Heavy rain is likely to wash the cement content out of mortar significantly reducing its strength. … Do not mix on the patio.

How much does it cost to repoint a patio?

Repointing patio cost

Much like with brick walls, the mortar is removed, the space cleaned and then it is refilled. Usually, this is done with a resin or polymeric mortar. Repointing a patio costs around £10 – £20 per m2.

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