Sam was prompted to list what properties a nail polish should posses.After discussion and questioning, the following were listed.It should not be brittle, maintain color, have shine, adhere to the nail,be nontoxic, and easily removed. The following items were introduced; Nitrocellulose to form a film on the nail, acetates to act as solvents and be volatile, adhesive polymers to insure staying on the nail, pigments like chromium oxide for green, iron oxide for reds and ferrocyanids for blues. The use of plasticizers like camphor for flexibility and UV stabilizers such as benzdophenones to resist color change.