Shellac has a pretty strong smell, and even though it dissipates quickly, no one wants to be using it in their homes. Also, since shellac is alcohol based, it doesn’t clean up as easily as a water based product. Also, it doesn’t smell nearly as bad as shellac.Click to see full answer. Similarly, are shellac fumes dangerous?-shellac is non-toxic for use on children’s’ furniture and for use around food. The fumes during application, being alcohol, are also non-toxic although good ventilation is recommended. -shellac reacts to alkaline products such as ammonia and some household cleaners.One may also ask, does shellac based primer smell? They smell too, but it is the regular water based paint smell that most people are used too. It does take a while sometimes. The more area and more coats make it stronger, of course. Hopefully it had enough time and cross ventilation so the bin could dry well and gas out. Beside above, will shellac seal odors? Shellac has wonderful blocking properties, better than any other finish. It blocks silicone contamination, which causes fish eye, odors (for example, from smoke or animal urine), and residual wax extremely well.How do you seal the smell of wood? Seal the Wood A few coats of de-waxed shellac (with a light sanding in-between) might help. Shellac is a terrific sealant but isn’t water-resistant, so if the unit will be exposed to moisture, you’ll want to use something to protect the finish such as polyurethane to seal the wood.