I did not realise that you have to use the material immediatley after mixing the contents of the 2 tins, therefore can be problamatic if you don't want to use all the contents staight away. If you followed the instructions and wanted to apply 2 coats then you would need 2 lots of material. I actually poured part of the contents into a separate container in a roughly 2 to 1 ratio. Drying time was actually a lot longer than expected, and was still tacky after 24 hours, maybe due to the temperature, although it was still quite mild last week. Also did not find that it started to solidify 30 minutes after mixing.