1. My instructions say to mix 1oz of Z-3 and 4-5 drops of ZFX. My problem is.... How do I know how much 1oz is? My hand is not a scale. To be more specific, how much is 1ox in relation to the little bottles that come w/the ZFX kit.
2. Can I use Zaino (z-3) over 3M SMR and 3MPIIIFCC (fine cut...