Rust-Oleum 1 Gallon Zinsser 00901 White Shellac-Based Primer Sealer for Interior & Exterior Use - Perfect for Wood, Drywall, Metal & Masonry Surfaces

I always keep some of this in my supply. It is hands down the best shellac primer ever. I use it on everything! It’s bond is incredible and I trust the product any time I need to use it. It is strong smelling as it is an oil based primer, but if you’re only doing small spots, you should be fine. When I was using it in my enclosed bathroom, even with the fan on and no doors even attached in any doorways, I needed to use a respirator. When I was priming my trim, moving around the house and with windows open, I did not need one. I tried some other brand’s “bonding” primers before (they are not worthy of the word), I don’t know why I wasted my money on those products, but nothing is as good as this stuff. Anyway, super reliable and the best on the market!