I use cheap, clear lacquer to lightly mist over my chalk lines. After about 1 min the lacquer dries enough for you to start walking and working over your chalk lines. This method does affect your Thinset bonding properties.
I use cheap, clear lacquer to lightly mist over my chalk lines. After about 1 min the lacquer dries enough for you to start walking and working over your chalk lines. This method does affect your Thinset bonding properties.