Use a lint free cotton cloth an old t shirt works best apply a little of the sealer on to the cloth.
How to seal a slate roof.
Ensure that the tile is clean a.
Slate guillotine some slate guillotines have batten hooks fitted so that you can hook it onto a lath or batten and work in situ up a roof.
Shake or stir well before use.
To do this use the slate ripper to rip off the nail that hooks the slate onto the slate roof.
Nd free from grout cement oil wax and other stains clean with the correct tile floor care product if necessary.
How to seal a slated roof.
You might find problems removing the nail with the slate ripper.
Another option is to make your own by screwing a guillotine to a piece of plywood and making your own batten hook with a spare piece of batten this makes it stable and usable on the ground too.
With good wire cutters you might also be able to cut off the head of the nail which will help.
Once you have covered the surface rub off any excess straight away with a clean cloth and allow to dry naturally.
8 hours after cleaning.