We add nothing to our product! It is the exact same as TJ Pounder. We buy 40,000 liters at a time and add nothing. It is pure Blackmac exactly the same as TJ Pounders. Your ill informed on this and spreading bad information.
As far as spraying foundations... yes it is to code you can spray foundations with it. We have a number of customers that only do foundations with it.
Cut back is just another name for the oil based sealer.... cut back is actually just refering to it being a derrivitive of actual ashpalt. We buy off of the exact same manufacturer as TJ Pounder.