just ordered some protectakote to waterproof my van floor,i have noticed a few bolts and screws which i presume hold the floor of the van together and other various bits and pieces,do i just paint over these,any ideas?
yes, make sure you give them a good covering aswell
though look under the floor, at the rear you might have a cage under the floor that holds the spare wheel on, if thats the case, you have a option :
1. paint over it, and you will not be able to use the spare if you need to, but carry a can of puncture repair emergency air
2. undo the bolts, paint the holes etc, try not to get too much into the hole though, Then, when you put the bolts back in, put a rubber washer under it, this should keep the water from going under it