John,dont get me wrong,I am not criticising you or your methods and I am sure you are concientious just as I am,maybe I am doing something different,I dont know
costings petrol £8
sand £10
two coat sealant £ £100 sprayed acrylic 26%solids
total spend £118
charged £360
margin £242
averages out at £40 per hour,I try and work at a minimum of £35 and put £10 towards running costs,hope this makes things a little clearer,if you have any suggestions they will be gratefully recieved,this forum has been extremely useful for me,cheers Neil