Scientific Anglers

FUN Interactive Fly Fishing Game
see below

Half a century ago, even the most accomplished fly fishers could only achieve modest results. All the skill in the world couldn't compensate for a silk fly line which had to be dried and treated every night (or half way through the day) just to get a few hours of fishing. There was a certain tradition to this, but it took away from the quantity and quality of the fishing.

Leon Martuch Sr. and Clare Harris had enough. They also had the scientific talents to do something about it - and that's when they became Scientific Anglers™. At first they conducted experiments in Leon's kitchen. In fact, it was there they developed the early prototypes of Air Cel™, known today as the first modern floating fly line.

Still on Castwell's Fly Vest Back in the early days of development in Midland Michigan, Leon and his fine staff welcomed curious fly anglers. Some, like our own Jim Birkholm were supplied with 'test' lines. Reports on the performance of the lines were expected. Jim (J. Castwell) received help with his casting, Scientific Anglers™ wanted their 'field testers,' as they were called, to be successful.

Line Chart Through the years, Scientific Anglers™ has continued to experiment with new materials and processes. They don't guess about what will work. They don't pretend that gimmicks have anything to do with catching fish - and they don't count on luck. They really are a company founded by scientists and they are driven to explore scientific solutions to the challenges we all face in our fishing.

All modern fly lines are based on the principles first developed by Scientific Anglers™ some fifty years ago.


New Sharkskin Trout Taper Fly Lines

What is Sharkskin?

By modifying the surface of the fly line with a micro-repeating structure, you can achieve surface interface properties that mimic nature such as the ability of insects to walk on water, the shedding and self-cleaning ability of Lotus leaves, or the adhesion that allows a gecko to walk up vertical surfaces.

Scientific Anglers Sharkskin™ technology is a precise texturing process that embosses the surface of the fly line coating with a repeating geometric micro-pattern. The finished surface is no longer smooth, no longer exhibits unwanted line flash, and can be optimized via the engineered shape, depth, and frequency of the pattern to yield greatly improved line-to-water floatation, casting performance, and overall line suppleness and durability.

What is the specific benefit for a floating fly line?

The Sharkskin technology is a radical modification of typical smooth-surfaced fly lines…introducing a micropattern around the entire circumference of the line. One of the pattern's key features is that it changes the meniscus force balance that up until now, holds all other floating fly lines at close to a neutral buoyancy within the line-water interface…essentially ½ the line is above the surface and ½ the line is below the surface. The micro texture greatly increases the upward meniscus force through a combination of the water's interaction with the new surface and the trapping of air into the valleys of the texture. The result is an over 200% improvement in resistance of the line to be forced into the water…effectively improving "floatation" of the line significantly beyond anything that can be achieved through the addition of glass bubbles or surface chemistries. The line sits higher in the water – less drag, easier mending, easier roll casting, easier pick-ups, less water spray.

What are the benefits of Sharkskin on casting?

Simply reducing running line diameters on weight forward (WF) lines has long been utilized as a way to reduce line friction in rod guides. However, reducing line diameter also reduces line durability, and increases the propensity for a line to tangle. Simple texturing of a fly line reduces the surface contact with rod guides during casting. Scientific Anglers introduced the Bonefish taper and other key distance-casting lines that utilize a braided monofilament core - modifying the surface of the running line, reducing the frictional interface during casting and resulting in the ability to shoot farther but with few tangles. The Sharkskin technology takes this a step further, allowing lines not made on stiff braided monofilament to have this shooting and casting advantage and the advantage extends to the belly and tip of the line, not just the running line.

Because friction in the guides is reduced significantly, even when the line belly is in the guides, shoot distance is increased allowing longer, easier casts. Casters who also double haul find haul resistance reduced which results in easier, smoother hauls, even on hot days or when the line is dirty. This, along with reduced shoot friction, has resulted in increased test casting distance when compared to the exact same line without the Sharkskin texture. Distance increases compared to competitive lines without the advantages of AST, Sharkskin, and our new taper, will be significantly greater. Although these new lines excel at distance, the features that allow that distance make shorter casts even easier.


Here's a fun way to 'try out' a line - right here! Just click on the logo at the left, and pick a fly line to use. The Interactive Game shows you what each line can do. Choose any of three lines, make the right cast and catch a fish (please release them, it's fun to see them swim away.) You can catch fish on the internet!

Scientific Anglers offers the ultimate selection of fly lines in the world, along with a growing assortment of leaders, tippets, outfits and reels.

Special Purpose Lines

AST Coating Patented AST - Advanced Shooting Technology - is 3M's proprietary floating-line coating process that offers the ultimate in shootability, floatability, and durabillity. Exceptionally slick and producing less friction through the rod guides for easier casting and better shooting. AST also repels dirt and algae, which keeps line floating higher, casting farther, and lasting longer.

L2L Connector
Here's another NEW innovative product - the Line to Leader Connector! Read the Product Review on it HERE!

Scientific Anglers™ has added dozens of exciting new products, because they each meet the Scientific Anglers™ criteria for excellence, which is to provide superior function and performance for a given task.

Read Castwell's Product Review of the Wet Tip Express!

Watch for these new additions to the fine Scientific Anglers™ product line at your local Mastery Dealer!

Scientific Anglers
3M Scientific Anglers
3M Center, Building 223-4NE
St. Paul, MN 55144-1000
Call 1-800-430-5000 for the location of your nearest dealer.

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