I'm about to attempt the same task luckily I have a few mates who are painter decorators and have tackled this before claiming how much paint it will absorb, not sure they used Durobond paint before but will ask. Luckily I have gutted the place so nothing more than an empty shell with a concrete floor so opting for a quick spray job for ease. Any other tips would be greatly appreciated and will post my experience once the job is done hopefully in the next week or so before the kitchen arrives.