Strength & Stretch
The core found in the MDT fly line has a breaking strength of 50 pounds making it the strongest double taper fly line available. The complete lack of stretch in these fly lines, compounded with the strongest core available, translates the most subtle of takes back to the hand of the angler to virtually eliminate the chances of missing fish. Even the longest of casts can now be paired with long-distance hooksets without loss in reaction time due to fly line stretch.
Factory-welded loops are additionally reinforced to the point where the loop weld will actually outperform the core strength. This unmatched strength is critical at these high-stress locations.
Unlike vinyl, or PVC fly lines, the clear, polyethylene coating on the MDT Fly Line does not contain the volatile chemicals that must be added to PVC in order to create a fly line. This shift in technology is important to maintain the durability of the line. Previously, these chemicals would constantly migrate into the environment. This is why we steer away from PVC baby toys and food containers—they emit poison. As those chemicals migrate out of the plastic, a void is created in the compound. Not only does this alter the compound from its initial characteristics, but that void forces the compound to crack over time. This is where the circumferential cracks on a PVC fly line are born. Add dirt, oil, and other foreign debris to the cracks and performance degrades. Monic lines do not lose material over time, and therefore do not crack. This is important in the overall durability of the line and its performance longevity for the angler.
When you add things to the coating, such as micro balloons to make it float, those particles make their way to the surface of the fly line and create an abrasive quality. This abrasion causes cuts in the hands and noise on the guides of the rod. The smooth finish found on Monic lines remains smooth over time and has a better feel in the hand of the angler.