[JandS]

My Dad has and indian stone driveway and path round side of house.....the drive is slightly sloped and in Winter is like a skating rink when walking down it as is the path even though the path is level......any ideas for not just cleaning it but keeping it non slip as my parents are quite old.

[Kev Martin]

John

Go over the whole area with an antiquing brush. Then seal it with Miracle 511 Impregnator.

Kevin

[JandS]

Will that stop it becoming slippy.....there's a lot of trees in the area and this time of year when it's wet it soon becomes slippy again even though he tries to keep up with the cleaning of it.

[Kev Martin]

Essentially what you are doing is the brush creates small pits and fissures in the stone which alters the slip co-efficient and makes the surface better then the sealer seals the stone.  However, if the pits, fissures and surface then fill up with algae then the surface becomes slippery again.  So treat with an algae remover to deal with it it then the natural weathering will take care of it.  But it will need reapplying

[JandS]

Cheers for that Kevin.....there's a lot of trees where they live  and the stone soon becomes slippery again once cleaned due to all the algae....my dad's at home most days and tries to keep up to it.....I nearly went flying the other night whilst visiting.
Think he is going to take them up and lay something else.

[Neil Jones]

Good luck sealing anything outside at this time of year.

[Kev Martin]

Good luck sealing anything outside at this time of year.

No problem at all sealing in this weather as long as the surface is dry as long as you use Miracle 511 H20 Impregnator as it is water based it is a doddle

[BDCS]

chainsaw - remove the cause

[Neil Jones]

Personally wouldnt ever use a water based product outside.

[Kev Martin]

Personally wouldnt ever use a water based product outside.

Why not?

[BDCS]

Personally wouldnt ever use a water based product outside.

Lets hope you never need your car sprayed

[Smurf]

Just whack some hypo down on it should do the trick when it starts to become slippery.
You don't need a pressure washer either as the chem does all the work fast to kill any organic growth/slim etc
1. To treat the surface simply wet the surface down and run off areas like boarders, plants etc first.
 2. Mix 14-15% hypo 1-1 in a painter’s oblong pale and apply it liberally with a cheapo telescopic car brush.
3. Agitate it if need be with a stiff deck brush, let dwell for about 30 -40 mins without the surface drying out.
4. Then rinse down well with a hose including run off areas.
 
Job done.

Warning:
Just make sure you ware old cloths & ppe (rubber gloves, eye protection and wellies) as hypo at that strength is nasty stuff and avoid pets, kids and adults into the area unitl the surface dries out as then become harmless.  Obviously avoid people tracking hypo back into the house on footwear too.

You may also find this interesting reading? http://www.pavingexpert.com/maintain_02.htm#aml