Hi, ill be cleaning and sealing 75 sq mt of tumbled marble this week, any tips on ways to speed up the process of applying and ect. and would you seal before an after grouting? any advice would be appreciated

Not sure what you mean.. is this a re-vamp cleaning job or a new install.?

its a new install its ready for grouting. so going to clean seal grout then clean and seal again whats your thoughts on that and whats quickest way to do it ie lint free roller? ect???

IMO i grout first... but this depends on how experienced you are with stone..

So for you.. clean down with mild LTP grimex( 5:1), leave to dry over night then seal with LTP Mattstone.. leave to dry over night again then this will act as a pre-seal.. then grout and clean up as normal.. make sure they are clean and then seal with Mattstone again till the stone is sealed to saturation.

Follow instructions on drying times between coats of sealer.

As above, it wont do you any harm to seal before grouting, the end product is more important than the speed IMO

Thanks Dave and what best way to apply on sealer on large area, jay cloth, roller?