A: Hi Jon, thank you for reaching out! Our Zinsser Bulls Eye Shellac may be applied to wood flooring; however, natural shellac resin is not as durable as polyurethane, and requires special upkeep. Instead, you may consider applying our Varathane Floor Finish Oil-Based Polyurethane, which has a similar natural amber hue. The existing coating needs to be fully cured, then lightly sanded with 220 grit sandpaper followed by cleaning to ensure proper adhesion. https://www.homedepot.com/p/Varathane-1-gal-Clear-Satin-Oil-Based-Floor-Finish-Polyurethane-2-Pack-130231/202058854 - Rust-Oleum Product Support 2
A: Great question! Rust-Oleum Bulls-Eye Shellac can be used to seal pressboard. For best results, apply several light coats with a brush, pad or lint-free wiping cloth and let dry for 1 hour before sanding with 220 grit or finer sandpaper. Allow any subsequent coats to dry at least 1 hour before sanding lightly and recoating. -Rust-Oleum Product Support 13
A: Happy to help, Michael! We recommend lightly sanding bare wood with 80 to 100 grit sandpaper to remove weathered wood fibers to ensure the best finish prior to applying Rust-Oleum Zinsser Bulls Eye Shellac Finish. If trying to color match an existing application, we recommend applying in a test area first to ensure favorable results. - Rust-Oleum Product Support 3
A: If the shellac is allowed to fully cure in an environment somewhere between 50F and 80F, then it will be fine later on at the extremes mentioned.
A: Happy to help Mitch. Because Zinsser Bulls Eye Shellac dries to an inflexible surface, it cannot be exposed to the temperature variations in your garage, this temperature variance can cause the shellac to crack. - Rust-Oleum Product Support 6