Block paving sealer advise

[Stevemac]

I've always liased with clients, pre-warning that there is a possibility it will happen. However, I always keep an eye on it, returning to the client and sealing once it has dissipated...Customer Service goes a long way to recommendations...

[drew54388]

@R&A no i haven't got a website.

@Ken no i live in Warrington

Just wanted to pose another question.

Why have you all got this thinking that blocks have to be left for so long before sealing?

Is it just that that is what someone told you once or something else?

I struggle to comprehend this thinking, as basic physics dictates, if a surface is sealed to stop contaminates penatrating the surface from the top, then it will also stop surface penatration from the bottom, it is impossible for this type of coating to work in one direction!!

[RAPressureWashing]

I have seen eflo still coming out of pavers after a couple of months once they have been laid, in fact looked at a job at the weekend, paving has been down 18 months and is covered in the stuff.
The other reason I gave the time to wait was the opening poster and I might be wrong seemed like they hadn't sealed before so to give a first timer a chance better temps, weather and a few months of no eflo will give him a better chance of doing the job right.

I have also seen enough paving with eflo under sealers, maybe the person's sealing made a mistake, paving was damp when sealed who knows.