analeptic (anÂ´ÉlepÂ´tik), n 1. an agent that acts to overcome depression of the central nervous system. n 2. a strong central nervous system stimulant that is used to restore consciousness, especially from a drug-induced coma. 1. a drug that acts as a stimulant to the central nervous system, such as caffeine and amphetamine.
Shellac is scraped from the bark of the trees where the female lac bug, Kerria lacca (Order Hemiptera, Family Kerriidae), also known as Laccifer lacca, secretes it to form a tunnel-like tube as it traverses the branches of the tree.
Shellac based primer is shellac with white die and pigment in it. Shellac is one of the best stain blockers around, bar none. Shellac is an alcohol based product. Not oil or water. So you will need to buy some denatured alcohol to clean up with. Paint thinner, mineral spirits or soap and water won't work.