I cleaned a new garage slab floor for a customer(which is out in the open,new const.) anyway when it came time for sealing the job out comes the customer with 2 gallons of Thomsons all purpose sealer so anyway I try explaining how I feel thay should use a 'cure and seal" type sealer,but thay don't want to spend anymore money since thay already have the thomsons and insist on using it... so I apply the thomsons crap...and wouldn't you know it 2 weeks go buy and the phone rings...seems the sealer never really dried and left the surface oilly with a tacky film,and thay want me to "fix the problem"....so anyone have any ideas how to get this crap off...will it require hot water? I only have a cold water unit as I mainly focus on wood. any help would nice..thanks in advance.