Sealing large gaps around block paving

[Bob_A]

GftK is a German company that manufactures epoxy mortars for paving
http://www.gftk-info.de/node/208

NCC is the main distributor in this country
http://www.nccstreetscape.co.uk/Pavemen....dAmYAsw

[233sqn]

Thank you everyone for your replies.
I think having read through them all and visited the manufacturers websites I’m going to stick with old fashioned sand and cement, mainly because although some of these products seem very good and easy to use, at anything between £50 and £75 for 25Kg amounts etc, it isn’t going to be economical, I just have a few small areas to do, it just doesn’t add up.
Sooo....
I see Wickes do idiot proof mixes for patching and repairs etc that looks like the option I will go for., see http://www.wickes.co.uk/mix-in-the-tub-mortar-5kg/invt/154060/ As mentioned previously these gaps are not going to be load bearing it’s just cosmetic, they are gaps that to me just looked too big for sand alone. I’ll push it in with a pointed trowel and finish it by hand.
Just out of interest, I seem to remember (many ) years ago my dad using a completely dry mix, brushing it in with a broom and sprinkling it with a watering can, or even just leaving it and waiting for it to rain!

[specialbranch]

I was just about to email some piccies to Marshalls when I saw this thread so thought I would post them here. This Patio was done April 2011. The client was really fussy about having a buff flag(wouldnt entertain Indain stone) and a buff joint and didnt want me to use my usual 3:1 mix as it was too grey. so we agreed on Weatherpoint buff. Was definatley installed correctly as I was involved with the Trails and used plenty on the remedial works I did for Marshalls supervised by the team introducing it. The job went black within 3 months I contacted Marshalls and they said any pointing method would have discoloured?? but send some photos and they would look into it. The client cleaned the patio and said she was happy enough to leave it in. It discoloured again after a few weeks and she now wants me to rip it out and point with easipoint buff at her cost but Im going to try Marshalls again on her behalf as the product is not fit for purpose in my mind. I am quite happy with the Bassalt Grey Weatherpoint I have used elsewhere but people i speak to at have also commented on the discolouring of the Buff, Not Good!

[lutonlagerlout]

my big fear with any product that is permeable is that when you lay it on a rigid base i.e. sand/cement
the water ends up sitting in the joints
sand and cement it runs off
we relaid a patio years ago and the guy couldnt make up his mind
so we filled the joints with KDS
once a year he jetwashes it all out
and puts 3 new bags in :;):
the way forward maybe?
LLL

[Tony McC]

I know of certain buff/sand/sable coloured "proper" resin mortars that don't discolour, as long as you discount the crud which inevitably accumulates on the surface. Some of the polymerics do seem to suffer from severe algal colonisation in record time and this is often the cause of the initial discolouration. Geo_fix was always a bugger for turning black with algae when you went for a brew.

I've been working on a new video project where a 4 year old installation using a resin mortar is cleaned-up as part of a tidying-up job, and although the colour is basalt/dark grey rather than buff, in terms of that colouring, it's exactly as it was on the day it was installed. If I get it finished, it will be uploaded some time over the winter....famous last words!