Paving Block Sealant

[Lynshut]

Hi, I’ve recently had new block paving done on my driveway & it was sealed shortly after. Now it’s looking patchy in areas, some bits darker grey than others. Any idea what I need to do to fix this?

 

[jj4091]

It depends what it was sealed with. Some acrylic sealers can be reactivated with a suitable solution, others may have to be completly redone.

 

[Lynshut]

It was Thompson’s one coat patio & block paving seal that was applied

 

[freddiemercurystwin]

Did Stevie Wonder do that manhole?

 

[Lynshut]

Did Stevie Wonder do that manhole?

not helpful

 

[foxhole]

Looks like some blocks absorbed more seal than others , had it rained prior to seal being applied ?

 

[accelerator]

Presumably if it's been dry for a while it looks fully uniform?

Does it just look patchy after a bit of rain?

 

[jj4091]

It was Thompson’s one coat patio & block paving seal that was applied

They recommend it is redone every 2 years, but I have read that it can be ok for 4 in the right conditions

 

[Lynshut]

Presumably if it's been dry for a while it looks fully uniform?

Does it just look patchy after a bit of rain?

Yes after a bit of rain it looks patchy and if it’s dry for a few days it does look uniform again. It’s the times in between it looks patchy all over the place. Should I be doing another coat or applying sealant remover to fix it or is it best leaving it well alone to weather?

 

[Lynshut]

Looks like some blocks absorbed more seal than others , had it rained prior to seal being applied ?

No it was dry for days prior to the seal being applied. It goes patchy after it’s rained and then if there’s several dry days it eventually goes beck to uniform

 

[freddiemercurystwin]

What prep was done prior to its application?

 

[Lynshut]

What prep was done prior to its application?

None, it was newly installed, with new silka sand in the joints

 

[johnny2007]

I stopped using Thompson patio sealer after the same experience with my front slabs path.
At the back I used Wickes patio sealer which is solvent based.
Much better finish and no discoloration.
It smells for a couple of days after application, but being outside it's not a problem.
Been there a year and still ok.

 

[foxhole]

Looks to have been poorly sealed so some areas don’t have enough to prevent water staining.

 

[Lynshut]

I stopped using Thompson patio sealer after the same experience with my front slabs path.
At the back I used Wickes patio sealer which is solvent based.
Much better finish and no discoloration.
It smells for a couple of days after application, but being outside it's not a problem.
Been there a year and still ok.

Did you just go over the Thompsons application with the Wickes one?