2604 is one of those tapes that you very rarely come across, but when you do, its an easy one to remember. Often referred to as helicopter tape or bike protection tape, 2604 is a clear 360 micron super thick protection film which is coated with an acrylic pressure sensitive adhesive. 2604 offers erosion protection of painted products. This tape is both tear and abrasion resistant. 2604 is most commonly used for mountain bike enthusiasts as an anti-scratch tape for bike frames, but can also be used to protect helicopter blades and aircraft propellers. Try this one out..... you wont be dissapointed. FREE SHIPPING ON THIS ITEM.