Roger resiblock 22 af needs "atmospheric moisture" to cure . It works well on sand stone 1/2 (depending on traffic) years down the line it is still helping to preventing staining red wine ,beer,burger fat,lichen etc .
The sealing window this year and in many years is very short this i will agree with, hence why i am interested in Fluropolymer waterbased products. In my experiance the waterbased products take twice as long to dry as solvented ones (generally) but they are less sensitive to moisture in the substrate.
Sealing paving is "easy money",given the correct expectations,products and weather conditions.
Resolving problems that have gone wrong with sealing projects by other contractors and homeowners is also "easy money " for me.
You mention Lithofin and aqua-mix being expensive but they work. I would rather pay extra for tried and tested products. In the end i have a reputation to uphold i would rather be remembered as being very expensive but worth it than cheap but "it looked ok in the beginning".
I give the customers a price for doing the job correctly... sometimes myself i think that the job is way too expensive but that is just how much costs these days!! A bar of chocolate is nearly a pound and they are getting smaller
Roger thank you for your recommendations i will look at these products.
Cleaning systems...do you have info on silane inpregnators