Neither fluorocarbon nor monofilament, the best of both!

KastKing, focusing on innovating the way you fish, launches another revolutionary technology in sport fishing with TriPolymer Advanced Monofilament.

TriPolymer sets a new standard in fishing lines by using a proprietary tri-extrusion process. Three types of nylon are incorporated into a revolutionary new line. Neither fluorocarbon nor monofilament, the best of both! KastKing TriPolymer Advanced Monofilament is the best of both.

Rex Nelson, KastKing Product Development Specialist, explains the impetus behind the development of TriPolymer. “Although fluorocarbon lines are great fishing lines, we were looking for an alternative to fluorocarbon. The limited supply and high cost associated with the resin used to make fluorocarbon translate into higher prices for anglers. We set out to make a line that had many of the same benefits that fluorocarbon offers, but at a much better value for the angler.”

Nelson further explains the technology behind TriPolymer. “By combining three different nylon resins into a single monofilament line, a truly unique fishing line is created. The three nylon resins, being in the same chemical family, blend perfectly during the manufacturing process. However, each resin has its own unique attributes that make the end result a truly amazing line.”

“The tri-extrusion process begins with Nylon 6, which forms the core of KastKing’s advanced TriPolymer monofilament. Nylon 6 allows the line to remain soft and flexible. Then we introduce Nylon 6,6, the highest tenacity nylon, which gives TriPolymer its high strength. The last part of the extrusion introduces nylon 12. Nylon 12 is the most durable nylon that gives Advanced TriPolymer monofilament its high abrasion resistance. The end result is a new standard in monofilament fishing line that will perform in even the toughest fishing conditions.

KastKing TriPolymer Advanced Monofilament offers exceptional smoothness not found in traditional monofilament lines. The smoother surface reduces friction on the rod guides, allowing you to cast further. Coupled with less memory, the result is longer casting distances and fewer issues like line spin and kickback. Precision wound spools further reduce line memory compared to standard monofilament lines.

Perhaps one of the most unique aspects of KastKing’s triple extrusion process is the fluorocarbon-like low light refraction. Fish simply won’t see TriPolymer underwater! With a specific gravity of 1.21, KastKing’s TriPolymer Advanced Monofilament is heavier than water and provides a considerably faster sink rate than monofilament. This allows the decoys to enter the attack zone faster.

Worried about line stretch? With a stretch factor that is approximately 30% lower than traditional monofilament, KastKing’s Advanced TriPolymer Monofilament allows you to feel even the slightest bites, resulting in more immediate hook casts and fewer lost fish. Less line stretch, low visibility underwater, high abrasion resistance and maximum casting distance. All the benefits of a premium fluorocarbon, but with a MSRP of $8.99 per reel, it’s significantly easier on your wallet.

KastKing TriPolymer Advanced Monofilament is offered in 4 to 30 pound tests on 300 yard spools and 8 to 100 pound tests on ¼ pound spools. Available in three colors for any fishing condition: Sunrise Yellow, Ice Clear, and Max Green.

KastKing TriPolymer advanced monofilament. No fluorocarbon, No monofilament, He the best of both!


  • low light refraction
  • Abrasion high resistance
  • Improved knot strength
  • Soft and pliable for less line memory and smoother launch
  • Tests available from 4 to 100 pounds
  • Available in 300 yard ¼ LB spools
  • Three colors to choose from; Sunrise Yellow, Clear Ice, and Peak Green

Learn more about KastKing’s innovative new products by visiting Post 5108 in ICAST 2023

For more information on KastKing and the tripolymer, please contact Dena Vick at [email protected].

About KastKing:

Founded in 2013, KastKing had a vision of producing quality products designed by anglers for anglers and delivered directly to the consumer at affordable prices. True to that vision, KastKing products are developed through input from the fishing community and go directly to the manufacturing plant. This reverse formula from manufacturer to consumer introduces cutting edge features into the new products that anglers want and need. The brand has gained popularity with anglers by offering affordable innovation through in-house engineering, allowing KastKing to offer never-before-seen technology at truly extraordinary prices. Ten years later, KastKing’s products have been sold to consumers in more than 150 countries and regions around the world through a variety of supply chains. Originally, KastKing products were only available online, but consumers can now find their favorite products in a growing number of retail stores. To learn more about KastKing and KastKing products, please visit our website at kastking.com or follow us on Instagram, Facebook, TikTok and YouTube.