another urgent

[Matty A]

Layed a slate floor on wed & thurs all went well grouted on friday i sealed the tile with 'STONE SHIELD' by fired earth (customer supplied) now i cleaned the floor with my wash boy and kept changing water to keep it clean i have washed the floor 3 times now and it still keeps drying with haze on now i tiled the porch of the house in the same tile with the same sealer and this hasnt got any haze on i only sealed the slate once before tiling but was informed by fired earth that once is ok im no too experienced in nat stone so was wondereing if there is anything i can add to my water to get this haze off as it will have dried over night now

 

[UKTT Darren]

Slate should be sealed twice leaving an hour in between coats then leave at least 6 hours before you grout, if you go to the tile shop and ask for cement remover for slate tiles, Lithofin builders clean or HG Extra, something on those lines, follow instructions on how soiled they are to dilute, seal again after you have finished. For future, get a piping bag and directly pipe the grout straight into the joint.

 

[Leatherface]

Sealing is the key. But first thorough cleaning before sealing - slate is usually very dirty / dusty - the slate needs to be clean and dry prior to sealing, otherwise any sealer will seal in the dirt and dust if you have not removed it first.
prior to fixing I usually grade all my slate first - thin, med and thick - and wipe over with a sponge and clean water as I go. Once laid I clean with another couple of changes of water and leave to dry thoroughly. Seal twice. 4/5 hrs between coats. 12 hrs after final coat before grouting.
Use 2 washboys when cleaning off grout - plenty changes of water. Use a small sponge as well to clean ridges on tiles as well as using washboy sponge.
I would personally never use a customer supplied sealer unless it is one I know and trust. I always use LTP sealers.

 

[UKTT Darren]

Afer sorting out thickness, lay the thickest ones first then pack out the thiner ones up to level as best you can

 

[Matty A]

cheers guys turned out i just needed to wait till the grout had dried and then just mop the floor with clean water and seems to have done the trick thank f**k for that customer sems happy will find out more when i go for my money on monday.

cheers
mat