Having turned up at my shop recently to discover somebody had spray painted the windows with bright green tags, I did a search for what might be the best way of removing the paint.   A couple of forums suggested that Magic Erasers might be what I needed - so I searched again and found a great price for a pack of 20 on ebay.  I placed an order, they arrived a day later and with a little scepticism I began to try one on the windows.
By adding a little water to the pad and rubbing at the paint, IT WORKED!  I did use a blade to carefully scrape off the thickest of the paint, but the eraser did the rest.  OK so it took a bit of elbow grease, but the graffiti came off.  After a rinse with ordinary glass cleaner to remove any smears left by the pad, the windows now look bright and clean – and customers can once again see what I have in my window displays.
For three windows of graffiti (about 5 square metres affected) I needed just the one pad and it took about an hour to do.  The other 19 I have?  Some I will keep in my shop for the odd clean-up task and the rest will go home.  They will no doubt be unhesitatingly replaced when they run out.

Recommended: Yes