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Posted: Mon Jul 18, 2005 11:37 am
by Richc69
Hi there,

I am new to the forum, and am impressed by the breadth and depth of information on here.

My question is in connection with our Stonemarket Riven patios which were laid by a landscaper approx 18 months ago.

I am pleased with the look of the flags, which are the black 'Old London' type, but I am still getting loads of black dust coming off them. This a real pain with the kids getting black feet etc. :(

I have tried cleaning with a low pressure wash (Stonemarket don't recommend jet washing) and have brushed them with a stiff brush repeatedly, however the dust keeps coming off.

As yet I haven't attempted to seal them with anything.

My questions are -
1. should the flags still be dusting after this length of time? and 2.what sort of sealant would you recommend to stop it?

Any advice would be appreciated.

Thanks

Richc69

Posted: Wed Jul 20, 2005 7:16 am
by mouldmaker
No, they shouldn't be dusting. This usually only happens if they've been treated with acid/brick cleaner, or pressure washed, both of which damage the surface layer and make it friable. There are manufacturing issues that could cause it also; you could try consulting Stonemarket, as their warranty doesn't have a stated time limitation. I wouldn't hold out too much hope on that score though!

Eureco in West Sussex make a good water based sealer. For Solvent based, try Worldpoint.

Posted: Wed Jul 20, 2005 9:26 am
by Richc69
Thanks Mouldmaker,

I will get onto the Landscaper who did the job and follow it up with Stonemarket.

Regards

Richc69

Posted: Sat Jul 23, 2005 9:28 am
by lee
Just of of interest, for my own information....

I would be pleased if you could post the outcome of this..
again its just for future reference!


lee

Posted: Fri Aug 19, 2005 3:49 pm
by Tony McC
Mouldmaker - do you rate that Eureco jollop? I've tried it on wet-cast products and thought it was pretty poor. It didn't prevent penetration of thin oils (paraffin and lighter fluid), and didn't protect against burger fat. I was unimpressed and surprised to find Stonemarket endorsing it.