[Knot Strength Experiment] Seaguar Blue Label vs. Red Label Leader Line


It’s fishing leader line experiment time again!

But today, we’ll be diving into the knot strength difference between two popular fluorocarbon leaders…

Seaguar’s Blue Label leader line vs. it’s Red Label leader cousin.

Seaguar says that the Blue Label line is higher quality than their original Red Label product, so I thought it would be interesting to see how much better it is in terms of their relative knot strength which is a very important factor for any leader line.

Here’s an overview of the experiment that we performed on these lines…

Note: We are not affiliated with any line company in any way, so there is zero bias one way or the other. These line tests are simply to help us all determine which line is truly the best based on facts and not marketing or emotion-driven hype.

Knot Strength of Seaguar Fluorocarbon Experiment

To determine which of these two lines enable the strongest knot strength, we used a basic yet effective “a” vs. “b” test in which the two lines are tied together with a series of the same knots.

seaguar blue label knot strength expirement

And then I pulled on the entire strand until the weakest point breaks.

After each break, I then would check to see exactly where the break occurred and noted the results.

Here is a video that shows the test:

Seaguar Leader Line Knot Strength Contest [Video]

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Click here to see the “abrasion resistance” test I performed on these same lines.


Seaguar’s Blue Label leader line did prove to be stronger than its Red Label cousin as advertised in terms of knot strength.

And given the earlier results from the abrasion test where the Blue Label came out on top as well, I’ll definitely be more confident using the Blue Label line over the Red Label when out on the water.

But before giving Blue Label the ultimate approval, I’ll certainly need to test out many different lines.

More tests will be coming soon. Leave a comment below if you have any line recommendations that you’d like me to test next.

Related Posts:

– Fluorocarbon Leader Line Vs. Fluorocarbon Main Line Experiment

Seaguar Blue Label vs. Red Label Abrasion Experiment

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Robert B Hosfeld
5 years ago

I’d like to see the seaguar vs vanish flouro leader. I buy the the vanish at Walmart because it is significantly cheaper

Chris Stanard
5 years ago

Hi Luke. Just curious, what was the pound test of the line?

Chris Stanard
5 years ago
Reply to  Luke Simonds

I guess that kinda opens another can of worms.

Michael Neumann
5 years ago

Hi-Seas 100% Fluorocarbon has been a quality product.

Adam Bailey
5 years ago

Thanks for these tests! Sometimes I use Seaguar Premier, so it’d be nice to see how that stacks up to the regular blue label, regarding knot strength and abrasion resistance. At the same pound test rating, it’s a little bit thinner in diameter, which is one reason that I like it.

Robert Glassen
5 years ago

It would be interesting to try a shock (dynamic) test by tying different lines to a weight and dropping it from a fixed height. The lines would have to be the same length.

Steven Jachec
5 years ago

Thank you for your continued unbiased tests (“But before giving Blue Label the ultimate approval, I’ll certainly need to test out many different lines.” Your reel review, etc.). This is one of the strong suits of SS in my opinion (The others being How to Find Fish and Insider Reports).

tim Gallagher
5 years ago

I’d love to see you guys do a test on the invisibility of Floroucarbon vs Monofiiment sometime soon too!!!

Mike Schulze
5 years ago

Could test out Yo-Zuri fluorocarbon? I have been using the 20lbs and 30lbs pink.


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