Let's talk about this, PJ! To ensure full durability with Rust-Oleum Zinsser B-I-N Shellac-Based Primer, we do recommend applying a topcoat within 3 days of application. If a topcoat cannot be applied within that time, then the surface may need to be lightly sanded or a new coat of primer may need to be applied. If you would like further assistance with your application, please give us a call at (888) 855-1774, so we can try to make things right with you.
- Rust-Oleum Product Support 3