6 x UV Ink Permanent Marker Pen. Ultra Violet Security Markers

• Six pack Permanent UV Ink security property marker pens that leave a waterproof mark
• Doesn't fade like standard UV pens
• No need to purchase overseals to protect the mark
• Markings fluoresce under UV light
• Can be used outdoors

A UV security property marker pen with high quality permanent UV ink that leaves a waterproof mark and doesn't fade like a standard UV pen. Markings are invisible under normal light conditions and fluoresce under Ultraviolet light. How to use tip: The ink from UV pens dries leaving a glossy mark which may be noticeable 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. Testing with a UV light will reveal the mark. 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.