It's recommended to practice the procedure a few times on something you don't intend to security mark first to learn how much pressure to use to gain best results. They are commonly used in security situations to identify belongings or to prevent the reproduction of unauthorized banknotes. Testing with a UV light will reveal the mark. An ultraviolet ( UV) marker is a pen whose marks are fluorescent but transparent: the marks can be seen only under an ultraviolet light. The ink from UV pens dries leaving a glossy mark which can be seen under certain light conditions due to the contrast differences between the ink and substrate being marked - this is easily resolved by dabbing the fresh markings with a tissue to remove excess ink, waiting a few seconds to let it dry a little and then rub it until the mark is no longer distinguishable. If you want the mark to be completely out of sight, choose somewhere behind or underneath the item, but make sure it is somewhere the Gardai will be able to find it. Use your house name or Eircode (for example). How to use: Very simply, mark your property with a clear identification mark. However markings will show up clearly when put under an Ultraviolet light, meaning you can get your goods back! ![]() ![]() The ink will appear invisible in daylight, making a thief unaware that your property has been marked. Recommended by the Gardai, UV pens are an ideal and discreet method of marking your valuables in the event that they are stolen. Markings fluoresce brightly under Ultraviolet light (Blacklight).
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