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Author Message   Fidji Tinkerer Username: Fidji Post Number: 21 Registered: 12-2011 Rating: N/A Votes: 0 Posted on Saturday, January 12, 2013 - 09:26 am:    I believe Naptha comes in different grades and is made from different substances.The petroleum naptha made for lighter fuel is perfectly safe on cameras and lenses,but I don't use it on SLR freznel screens made of plastic.It will remove some paints if rubbed in hard enough,but most are safe enough. The grade you have may be different as it has uses in the paint industry,so I would hesitate using it. Ronosol and other makes of lighter fuel are safe and easy to buy in small cans,so I would stick to them.