Dust in cracks

[screenman]

I agrh Yvan on this one cracks can be cleaned as anyone who has been involved with Novus will know they actualy pioneered a crack cleaning system as far back as 1989 it is only by pushing the barriers do we find the limit and I believe we are not there yet keep experimenting and improvement will come.
If you are in a poor area your customers will appreciate your effort to save them money even if you get the odd failure.

If you can repair every single job 100% I would suggest you are not taking any chances and are turning jobs away which could have been repaired.