Sealing and laying rainbow sandstone

[rolysatch]

hi

i've just finished my brickwork, which i've made a nice job of, around my patio and i'm about to lay the patio itself. its the honed rainbow sandstone in a random layout. i know people here have misgivings with this sandstone, but that's what i've got now unfortunately and i'm stuck with it now.

anyhow i have a few questions before i start the job, if anyone can offer any advice on any of them it would be really appreciated.

i'm cleaning and then sealing it before laying with ltp mattstone, does that let the efflorescence out ok? i think i will be using a sbr bond bridge also if that will help preven it.

would a damp screed be easier to lay it on for a beginner or should it be a wet mix? and should i use the SBR bond bridge also? 6:1 mix ok?

am i correct in thinking being honed is going to be harder to lay for me, or easier?

i'm going to use a brush in jointing, any recomendations on what is best currently, i see on the main site he talks about Rompox, obviously cheaper the better. what's the narrowest joint i can use, whilst it remaining strong?

any advice appreciated, sorry for all the questions.

thanks in advance

roly

[Tony McC]

LTP Mattstone is OK but I'm not a fan of pre-sealing. It can often cause more problems than it solves.

SBR Primer will more than likely minimise eff, but there can never be a 100% guarantee

Moist mix is easiest for a novice

Honed paving is more excating so your levels have to be spot on - very little leeway without forming lips and trips.

"He" talks about? Do you mean me??? And "cheaper the better"???? WRONG! Buy cheap:buy twice.

Use a 2-part resin slurry such as Rompox D1 or GftK 800. You really do get what you pay for.

For joints of 5mm or less, use GftK 815