Scientific Anglers Info:


Scientific Anglers Products:

Scientific Anglers Fly Line Technologies



Scientific Anglers is credited with being the first fly line manufacturer to break from the tradition of braided silk lines by introducing something truly revolutionary: polymer coated fly lines. No longer did anglers have to treat lines to make them float, or dry them after a day on the water. Scientific Angler’s lines float higher, last longer, and require very little maintenance. Our proprietary manufacturing method allowed us to infinitely adjust tapers, to create lines tailor made for different environments and a variety applications. Scientific Anglers chose to use flexible PVC because of it’s incredible wear and bending strength and weather-ability. That’s how we make the most durable fly lines in the world.


Flex PVC

What is flex PVC?  Flex PVC is made by combining PVC with a suitable liquid known as a plasticiser. Plasticisers are added to make the PVC more supple, so that it can withstand the stress of being bent back and forth (casting for example). The type and loading of plasticiser determines how soft or rigid the end product is. Plasticiser science has evolved over the years and has adapted as needed. Older plasticiser technology used substances called phthalates which came under scrutiny and are now regulated by organisations and legislation like Proposition 65 (US-California) and REACH (EU).

Flexible (plasticised) PVC is still widely used in many different markets like medical tubing, blood bags, flooring, rainwear, boots, automotive interiors, plumbing, imitation leather, inflatable watercraft, and cable insulation to name a few.


Scientific Angler's Current Coating Formulation

Like other industries, Scientific Angler’s coating formulation has adapted over the years to better suit the market and to protect our resources. Scientific Angler’s current fly line coating formulation DOES NOT contain phthalate-based plasticisers present on  California’s Proposition 65 chemical list or regulated by REACH. We are committed to providing the highest quality, most durable and environmentally friendly products that we can.



A final thought, and different perspective on environmentally conscious products:  testing shows that our fly lines are 2-4 times more durable than competitive PVC lines, and 7-8 times more durable than competitive non-PVC lines. We keep more fly lines out of landfills simply by providing a more durable product.



Breakthrough Technologies

Throughout our 50+ year history, our superior chemistry has provided unmatched durability, permanent slickness, optimal floatation and sink rates that are unsurpassed in fly fishing.  Our proprietary technologies and designs continue to be ahead of their time - allowing Scientific Anglers to bring you the future of fly fishing today. The following are some of our breakthrough technologies:

Advanced Shooting Technology

Scientific Anglers’ patented dry-slick technology provides continual line slickness, allowing the line to shoot farther as it moves through the guides. Lines with AST easily shed dirt, algae, and other parasitic drag particles, allowing lines to cast farther, float higher, and stay cleaner than traditional lines.


Audible Reference Point

The Audible Reference Point is the inverse of the Tactile Reference Point. It is an embossed section of lne where the head meets the running line, allowing you to hear the transition as you strip in line. Available on our Spey Lite collection.


Advanced Shooting Technology Plus

A new formulation of our patented dry-slick technology provides continual line slickness over the lifetime of the line. Up to 40% slicker than other lines, fly lines with AST Plus cast farther, float higher, and stay cleaner than any other lines ever built.



Our camo technology creates a stealthy blend of muted colours on fly lines, providing much-needed stealth for wary fish, low-water situations, and any time where an additional bit of deception is necessary.


Floating Texture

A radical modification of smooth-surfaced fly lines. SA Floating Texture traps air to provide superior shootability and flotation while eliminating line flash and vastly reducing friction. Lines sit higher in the water, offering less drag and water spray, as well as easier mending, roll casting, and pick-ups.


Improved Dry Tip

Utilising a unique blend of microballoons, we have developed a fly-line tip section that floats twice as high as a standard line. The tip section will be floating higher with our Dry Tip Technology, which means easier strike detection, less drag from the front of the line and more positive hook-ups.


Scientific Anglers Line Identification

Meet the Scientific Anglers Line Identification System. SA•ID is an innovative line-marking system allowing you to identify your lines at a glance. Wonder if a shooting head is 200 grain or a 300? Just look at the SA•ID. The SA•ID can be found on the first 1-2 feet of the tip section of your line.


Seamless Density

Our Seamless Density technology is a gradual mixing of densities that provides a smooth transition between disparate densities, providing less hinging and a straight-line connection to the fly as it sinks.


Shooting Texture

The Scientific Anglers Shooting Texture features precisely replicated hemispherical divots, similar to those found on a golf ball’s surface. This evolution of our texturing technology has less texture on its surface so it feels like a traditional fly line but performs with the benefits of texturing. The result is a line that lasts longer, floats higher, casts easier, and, most importantly, fishes better.


Sonar Technology

For every one fish eating on top, there are ten feeding beneath it. Our Sonar sinking technology takes flies to where the fish are: beneath the surface. Using proprietary tungsten formulations and unique tapering, the SONAR sinking technology gets flies down, and keeps them there.


Tactile Reference Point

The Tactile Reference Point is a non embossed section of line where the end of the head meets the running line. This allows you to feel—and hear—the transition from our textured technologies.

Tropi-Core Technology

Tropical environments are not only taxing on the angler but can also be taxing on a fly line. Lines with Tropi-Core™ technology can withstand the hottest boat decks and warmest water environments. Combine the Tropi-Core™ technology with our proprietary hard saltwater coating and species-specific tapers, and you have the best in saltwater fly-line technology.


Welded Loop

A welded Loop produces smoother casts and easier turnover with a seamless fly-line-to-loop transition, making for softer landings and cleaner pickups. The sleek design maintains buoyancy for improved flotation and enables quicker connections between fly line and leaders or fly line and backing.


Welded Loops

Welded Loops produce smoother casts and easier turnover with a seamless fly-line-to-loop transition, making for softer landings and cleaner pickups. The sleek design maintains buoyancy for improved flotation and enables quicker connections between fly line and leaders or fly line and backing.


100lb Core

In the development of lines that could stand up against fish such as arapaima or giant trevally, we realized the first thing we had to do was strengthen the core. And strengthen it we did. Lines featuring our 100-lb. core have a super-strong single-strand monofilament core designed to handle the hottest environments and the biggest fish.



Back to top