Slippery slabs

[marts_uk]

We had limestone paving slabs laid 6-7 months ago, and in order to restore and keep the colour, I applied Romex Sealant and Colour Enhancer a few weeks ago.

I cleaned the slabs beforehand using a pressure washer and round brush attachment, and ensured they were dry before sealing (3 dry days beforehand).

I applied two coats of the sealant with a roller, a few hours apart. However now the slabs are slippy to walk on when dry (and wet to be honest)

Is this normal when dry or will it get less slippery once they have had a good rain shower?

Thanks

[ResiblockBoss]

Hi Marts
Our company has no personal experience of the Romex Sealant - but the way to overcome slipperiness for many materials is simply to put some sharp sand onto the surface and sweep it around with a yard broom (ideally leaving it there for a couple of weeks) then sweep it off.

This action will cause micro-abrasion of the surface and prevent water from beading up, thereby re-introducing the desired SRV (Skid resistance Value)
Craig

[Tony McC]

How heavy did you apply the sealant?

I've seen umpteen jobs sealed with the Romex CE and, while it's not the greatest product in the world, it's usually good enough as long as it isn't slathered on. The only time I recall it being a problem was, as I said, when the guy applying it worked on the principle of "more means better" and had built up a visibly thick layer of the resin.

As Craig said, KDS will abrade the surface and boost the SRV, and that's the simplest fix. If it's not on too heavily, a very sparse additional coat liberally dusted with a traction grit might be possible.

[marts_uk]

I applied using a roller, fairly lightly, but didn't let the sealer pool / push the sealer around with the roller - if that makes sense

When I say slippery - maybe I should say greasy.

We have a porcelain tiled kitchen floor, which is off the patio. If you walk in from the patio (patio has the issue) - the kitchen floor is slippy as though someone has spilt some cooking oil and no cleaned it up. So its transferring off your shoes onto whatever you walk on

[Tony McC]

So: you think there is transfer from the patio to the internal flooring? I find that very unlikely.

Has the sealant dried/cured? It can either be a liquid, or it can be sticky-gooey, or it can be dry and hard. There is no other state for it, so I can't see how anything is being transferred.

[marts_uk]

I cleaned the patio with some washing up liquid and hot water, and a soft bristle brush, working the suds into the patio, then hosed off - that seems to have done the trick. It doesn't feel greasy any more

[Tony McC]

Then it must have been some contaminant lying on the surface of the sealant, rather than the sealant itself.