as well as radical photoinitiator 2-hydroxy-2-methyl-1-phenyl-1-propan-1-one (Darocur® 1173, Aldrich - Sigma) and both hydrochloric acid and ethyl alcohol (Merck, Whitehouse Station, NJ, USA).

However, you should avoid rubbing alcohol or products made of straight alcohol, since they can damage the protective coatings that prevent oil and water from harming your screen. Some suggest ...