Fluorocarbon ..... Just the Facts.

yessokk

Luck favors the well prepared.
Sep 18, 2006
1,023
1,206
113
Costa Mesa, Cailf
Name
Walt
Boat
11 ft Sears W/Duel 5.2hp
If you like objective data instead of subjective opinion here are 3 important facts to consider regarding the use of Fluorocarbon.

1. Giving water the specific gravity of 1 Mono is 1.15 and sinks very slowly. Fluorocarbon
has a specific gravity of 1.78 and sinks about 3X as fast as mono. A distinct advantage when getting your bait down into the water column.
2. Fluoro has about 21% better abrasion resistance when compared to Mono.
3. Water has a Refractive Index of 1.33 , Mono is aprox. 1.58 and Fluoro is 1.42. While Fluoro is not invisible under water as some line mfgs. would like you to believe it is closer to the refractive index of water and is certainly less visible.

The above three attributes of Fluoro are the most important but there are other less important factors to take into consideration.
Mono absorbs water at the rate of 8-10% by wt. of the mono. Where Fluoro absorbs 0.01 % water by wt. Mono suffers a high rate of degradation from Ultraviolet Rays while Fluoro is close to Zero.


The distinct advantage of Mono is that it usually cast better as it is on average a softer more pliable material. Mono has a slight advantage in knot strength, especially the Co-Polymers. From testing would guestimate about a 6-10% . Would speculate that difference stems from the fact the Mono has a higher breaking strength per diameter then Fluoro. Izor XXX 20 lb. has a diameter of .017 as does Black Water 20 lb. Fluoro but the break strength is better with the XXX at 30 lbs. while the BW is 27 lbs.
And of course it is less expensive.

Have found in the actual course of salt water fishing that Fluoro is most effective on bright sunny days when the sun light penetration is the greatest. Been on bites where if you did not use fluoro you just did not get bit. But on cloudy heavy overcast days or in very low light conditions such as the grey light in the AM and PM the difference in getting bit can be very minimal if at all.

Are lot'sa fish caught on Mono....of course. But on a day to day basis using fluoro cannot reduce your bite it can only improve it.

My .37 cents worth for your consideration.

Walt
 

plj46

I've posted enough I should edit this section
Jan 7, 2008
6,118
5,376
113
Socal
Name
jim
Boat
24 ft grady white
Nice info here.If you really think flouro is less visible underwater get in a swimming pool with both flouro and clear mono and see if you can tell the difference.I couldnt.
 

clintonstick

Well-Known "Member"
Mar 18, 2014
913
389
63
58
Name
mike
Boat
g3
If you like objective data instead of subjective opinion here are 3 important facts to consider regarding the use of Fluorocarbon.

1. Giving water the specific gravity of 1 Mono is 1.15 and sinks very slowly. Fluorocarbon
has a specific gravity of 1.78 and sinks about 3X as fast as mono. A distinct advantage when getting your bait down into the water column.
2. Fluoro has about 21% better abrasion resistance when compared to Mono.
3. Water has a Refractive Index of 1.33 , Mono is aprox. 1.58 and Fluoro is 1.42. While Fluoro is not invisible under water as some line mfgs. would like you to believe it is closer to the refractive index of water and is certainly less visible.

The above three attributes of Fluoro are the most important but there are other less important factors to take into consideration.
Mono absorbs water at the rate of 8-10% by wt. of the mono. Where Fluoro absorbs 0.01 % water by wt. Mono suffers a high rate of degradation from Ultraviolet Rays while Fluoro is close to Zero.


The distinct advantage of Mono is that it usually cast better as it is on average a softer more pliable material. Mono has a slight advantage in knot strength, especially the Co-Polymers. From testing would guestimate about a 6-10% . Would speculate that difference stems from the fact the Mono has a higher breaking strength per diameter then Fluoro. Izor XXX 20 lb. has a diameter of .017 as does Black Water 20 lb. Fluoro but the break strength is better with the XXX at 30 lbs. while the BW is 27 lbs.
And of course it is less expensive.

Have found in the actual course of salt water fishing that Fluoro is most effective on bright sunny days when the sun light penetration is the greatest. Been on bites where if you did not use fluoro you just did not get bit. But on cloudy heavy overcast days or in very low light conditions such as the grey light in the AM and PM the difference in getting bit can be very minimal if at all.

Are lot'sa fish caught on Mono....of course. But on a day to day basis using fluoro cannot reduce your bite it can only improve it.

My .37 cents worth for your consideration.

Walt
you always have great info,thanks
 

Otto

Well-Known "Member"
Aug 1, 2008
1,433
372
83
San Diego
Name
Floyd - Guy from Repo Man
Boat
19 SeaPro
If you like objective data instead of subjective opinion here are 3 important facts to consider regarding the use of Fluorocarbon.

1. Giving water the specific gravity of 1 Mono is 1.15 and sinks very slowly. Fluorocarbon
has a specific gravity of 1.78 and sinks about 3X as fast as mono. A distinct advantage when getting your bait down into the water column.
2. Fluoro has about 21% better abrasion resistance when compared to Mono.
3. Water has a Refractive Index of 1.33 , Mono is aprox. 1.58 and Fluoro is 1.42. While Fluoro is not invisible under water as some line mfgs. would like you to believe it is closer to the refractive index of water and is certainly less visible.

The above three attributes of Fluoro are the most important but there are other less important factors to take into consideration.
Mono absorbs water at the rate of 8-10% by wt. of the mono. Where Fluoro absorbs 0.01 % water by wt. Mono suffers a high rate of degradation from Ultraviolet Rays while Fluoro is close to Zero.


The distinct advantage of Mono is that it usually cast better as it is on average a softer more pliable material. Mono has a slight advantage in knot strength, especially the Co-Polymers. From testing would guestimate about a 6-10% . Would speculate that difference stems from the fact the Mono has a higher breaking strength per diameter then Fluoro. Izor XXX 20 lb. has a diameter of .017 as does Black Water 20 lb. Fluoro but the break strength is better with the XXX at 30 lbs. while the BW is 27 lbs.
And of course it is less expensive.

Have found in the actual course of salt water fishing that Fluoro is most effective on bright sunny days when the sun light penetration is the greatest. Been on bites where if you did not use fluoro you just did not get bit. But on cloudy heavy overcast days or in very low light conditions such as the grey light in the AM and PM the difference in getting bit can be very minimal if at all.

Are lot'sa fish caught on Mono....of course. But on a day to day basis using fluoro cannot reduce your bite it can only improve it.

My .37 cents worth for your consideration.

Walt
Hoping you could explain the stretch factor between fluorocarbon and mono.
 

balik

Newbie
May 29, 2007
125
20
18
Long Beach
Name
Bob
Boat
17 Whaler Dauntless
In addition to the better casting (and general ease of use) and significantly lower price, I also like mono for the stretch as others have pointed out. I do believe it results in fewer pulled hooks. For these reasons I still like a 50-100 yard mono topshots and am not a fan of the Spectra to flouro trend... My 27.4 cents worth ...
 

hucklongfin

Deep release specialist
Jul 3, 2003
8,122
5,091
113
63
Mission Viejo
Name
MarkT
Boat
Blazer Bay 1860
Fluoro is expensive enough that I don't use it as a matter of course. I think fluoro helps when fishing tuna but not so much with yellowtail. If they're wide open I don't bother, on a pick bite I use it.
 

kuyamonster

I only wishes to catch some fishes...
May 14, 2009
625
477
63
San Diego/Tacoma USA
Name
Marcel
Boat
Limited load cattle car
Thanks. I'm still a fan of both lines but I shall take your 37 cents worth of info. Do you have change for a dollar, Walt? :profile:
 

MJB

I've posted enough I should edit this section
Jun 19, 2008
2,405
553
113
San Diego
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Mark
Boat
sold it!!
Good info

Fluorcarbon is harder to tie your knots so take your time and check it twice if it doesn't look right retie.

What about shelf life of both?
 
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titos334

VIP Elite Member
Aug 19, 2012
1,441
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Hell
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Kevin
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Rainbow Surprise
Nice info here.If you really think flouro is less visible underwater get in a swimming pool with both flouro and clear mono and see if you can tell the difference.I couldnt.
Are you trying to catch humans?
 
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yessokk

Luck favors the well prepared.
Sep 18, 2006
1,023
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Costa Mesa, Cailf
Name
Walt
Boat
11 ft Sears W/Duel 5.2hp
I liked reading. Tell us about the stretch factor.
Hoping you could explain the stretch factor between fluorocarbon and mono.
]

That is an interesting question. The latest information I have studied indicates that the stretch factor of mono and fluoro are actually very close at around 30-35% , that can vary as per mfg. . The difference is that fluoro takes a pulling pressure almost equal to its breaking strength to obtain maximum stretch while max mono stretch is achieved around 60-70% of breaking strain. This is what accounts for it excellent ability to act as a shock absorber.

Good info

Fluorcarbon is harder to tie your knots so take your time and check it twice if it doesn't look right retie.

What about shelf life of both?

Have not found anything definitive regarding shelf life of either material but from my own experience it is best to keep all fishing line in a closed drawer void of all light and store in a plastic zip lock bag.
The reason for this is that ultra violet light degrades mono but not fluoro. But O-Zone has also been known to affect some plastic type products. So keep line in a closed drawer or better yet in the drawer and in a plastic bag is your best insurance. Storing all my line this way has proved beneficial. re-tested some 20lb Izor XXX that was over 2 yrs old and it tested as new. Same with spooled reels. At least keep them in a closed drawer.
 
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drumford

gotta go babe!
Sep 20, 2010
2,471
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C.M. CA
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Dondo
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Cory's Rig
Yes, agreed. Mono does degrade faster than flouro. I am of the old school though. Braid, as with fly fishing, is the backing. Not your main "fighting" line. Kelp cutting and deep drop rockfish is where braid shines with a short top shot. My .38cents.
 
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Normslanding

I've posted enough I should edit this section
Oct 13, 2010
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Palmetto, Fl., USA
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Dave Spangler
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Blue Heaven
This is what a manufacturer said about Fluoro. Actually Fluoro stretches a lot. But elongation does not start until almost the point of failure. Also it will not recoil like mono or a rubber band.
If you have pulled it hard it will look like it has fat and thin spots, also it may look wavy. It is fatigued and is close to failure. Mono stretches and springs back over and over. This is why there appears to be less stretch in Fluoro.
 

Trayscool

Captain
Sep 26, 2008
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Long Beach
www.skipjackmafia.com
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Travis
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NO BOATS
This is what a manufacturer said about Fluoro. Actually Fluoro stretches a lot. But elongation does not start until almost the point of failure. Also it will not recoil like mono or a rubber band.
If you have pulled it hard it will look like it has fat and thin spots, also it may look wavy. It is fatigued and is close to failure. Mono stretches and springs back over and over. This is why there appears to be less stretch in Fluoro.
true, this is my opservation too, when it does finally stretch its too late.
 
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slydawg

Always wishin' I was fishin'
Jul 14, 2004
3,521
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Alta Loma/Huntington
Name
Billy
Boat
WWW - 25’ Proline
My spin on it -
If it helps sometimes, why not use it all of the time? I was bit 4:1 over my buddys yesterday.
 
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