BAL sbr

[Aston]

Promise last question(s)!!!!
I think I hoovered well with my big Numatic Hoover, but will check tomorrow when dry for any residual dust.
However, is there a check for porosity? Drops of water pooling ??
By giving second coat of sbr can you over prime? And would it be same 4:1 ratio?
Thanks in advance
Richard.

the easiest way to check for porosity is to brush some water over and area and see how quickly it dries. if it stays damp for 2o mins, then the porosity is lower, if it dries within minutes, then its higher.

as for ratios, start off low and then reduce ie 4-1, then 3-1 etc...
hope this helps

 

[Wood's better]

It does help, thanks.