Afternoon chaps , im supposed to be starting an internal s/c job tomorrow ( upstairs bedroom ) . But my labourer has kindly text me 2 hours ago saying he won't be in all week . So I was wondering if I could use weber ocr instead ( I'll build out with 2 coats ) then skim over it a few days/week later ? Save me breaking my back with the mixer ? Customer doesn't want bonding or hardwall before anyone asks lol