I have heard conflicting instructions regarding primer on drywall, some saying one and some saying two coats. The bucket of Killz2 itself says reapply after 1 hr, implying two coats are needed (I am sure they want to sell more product). I have also heard varying customer feedback regarding Killz2.
Is it enough to apply just one coat of Killz2 primer on drywall or should I go with two? I have already done some painting with just a single coat and it turned out fine.