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Fishing Article: Berkley NanoFil Review
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27 Mar / 2012

Category: Product Reviews , Fishing Line Author: Clint C. Comments: 42

Berkley NanoFil Review

There has been a lot of mixed feelings on the new Berkley NanoFil fishing line. Some people say it's not reliable, breaks at the knot easily. Others say it's amazing, it's strong and casts a mile. Here's what we thought about it.

Strength & Knot

First thing I want to talk about is something a lot of people are complaining about. The knot strength. All over the net are reviews and message board posts saying this line breaks all the time at the knot. This is something at first I thought to be true. Before taking the line out to the water I tried and tested a Improved Clinch Knot several times. The first time I tied the knot I took my time and paid close attention to how well the knot was forming. I wet the line and slowly pulled the knot tight. Once it was tight I trimmed the excess line leaving 1/4 inch. I can tell you right now that there is no way that knot is going to come loose while tied properly (more on this later). I was very pleased with the strength of the knot so I cut it off and decided to try it again. This time I tied the knot more quickly and didn't wet the line before pulling the knot tight. Before the knot had a chance to tighten all the way the line snapped with very little pressure. At this point I realized the amount of friction caused by tightening the knot without the line being wet was too much for it to handle. Do not ever tie a knot with this line without wetting it! My third attempt I took my time and did everything properly just like the first knot again. The outcome was a good strong knot that did not seem to slip at all.

I was a little nervous the first time I took this line out to the water, but I tied on my snap swivel and headed out with only this line. There was that fear of getting a good fish and the line just coming loose for no reason. Fortunately my fears quickly disappeared when I got my shad rap caught on something. After a lot of pulling, and I mean a lot, the lure finally broke loose. I thought for sure after everything I had read that the knot was just going to slip and my lure was going to be gone. Also, on top of the fear of the knot coming loose was that I was only using 8lb line. I can say that this line should have broke with the amount of force I put on it to try and get the lure loose, but it didn't. When I got the lure in I checked the knot and everything looked just fine. So I decided to put the knot through even more hell.

After catching 10 fish with the largest being 4lb the knot is still good! In fact my swivel bent before this line has even come close to breaking. I dragged this line through weeds, bounced lures over sharp jagged rocks and even at one point without paying attention dragged it on a cement wall in front of me while retrieving my lure without it breaking. You can trust this line!

Castability & Sensitivity

WOW! Want to get maximum water coverage? Use this line. This is one thing almost everyone can agree on with this line. It can cast a country mile. You'll need to get use to it at first because you will be over shooting your targets. For me, being in a wheelchair, the distance I get out of it is a huge help. There are a lot of times I can not get as close to the water as other anglers and I lose a lot of distance in my cast. NanoFil fixes that problem for me.

As far as sensitivity I think it's amazing. I can feel just about every tap, tick and maybe even sniff of my lure ;0). I have yet to miss a hook up on a fish while using it. The line does like to run wild in the wind. It looks like a strand of spider web floating through the air and can be hard to manage light weight lures or finesse tactics. When the wind and water is calm this line really shines with finesse presentations. You can see it well and feel a fish nibbling on your bait!

I really don't have more to say on castability and sensitivity besides amazing. Oh yeah, one more thing. Tired of your line looping on your spinning reels? This line has no memory that we have seen. Your line will lay flat on the water.

Final Thoughts

I could write a ton more about this line but I'm not going to. The simple point I'd like to make is that don't believe all the bad things you've heard about this fishing line. The knots stay strong as long as they are tied properly and enough excess line is left incase of slippage. I don't think I'll use anything else besides this line on my spinning reels unless I'm fishing in very heavy cover. In which case I'll probably be using my baitcast reel anyway.

Also just so you know my first cast with this line was a month ago and I haven't re-tied the knot yet. I still have the same swivel on there and will report the first time I need to change the knot. Although I don't think that will be anytime soon. NanoFil is truly an amazing line.

30 discussion(s):

Guest - Nanofil Problem - 6 days Ago

I recently bought a brand new G- Loomis sr 782 panfish rod and the guy I purchased the rod from recommended I try Nanofil for better casting and sensitivity. I really liked the feel and the extra-long casting, but after only a few casts I noticed that this line was very noisy going through my guides. I didn't really worry to much about it, but a few weeks later," my second time out" I was casting off a jig here and a jig there and thought something is not right here. Sure enough, after inspecting my guides, the giude on the very tip had all of the ceramic insert completly eaten away all the way to the metal ring that holds the ceramic inside. G-loomis said they never had an issue before mine with Nanofil. They replaced three guides on my rod and recommended to not use Nanofil .

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Guest - berkley nanofil 8lb and 9.723kg line - 3 months Ago

Doug, I think still the casting OK. The system the leader is wrong will the leader is stable not the weight the hook is the wrong. The price the too expendive.

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Guest - Great stuff - 3 months Ago

I've used it the past two years and never lost a fish to failed knots. I can't speak highly enough of it. Casts a mile incredibly thin diameter and tough as nails.

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Guest - junk - 2 years Ago

Nanofil sucks breaks at knot

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Guest 9 months Ago

learn to tie a knot

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Guest 6 months Ago

Learning to tie the knots properly is the key

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Guest 5 months Ago

i use a trilene knot and it works fine

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Guest - Dissappointed kingfisher - 7 months Ago

Dont buy it breaks easily while casting.

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Guest - Awsome - 7 months Ago

I use it for it's intended purpose.I fish 4 to 5 days a week,shallow,clear water for speckled trout,redfish and flounder.It cast a MILE,knot strength has never been a problom(Uni-knot).I have caught 30+lb.Redfish on 6lb.and have 0 complaints.

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Guest - freezing on the spool - 8 months Ago

This line freezes on your spool and when you pull it off it the fibers break down to the point the line has no strength. Thanks, Terry Walmsely

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Guest - nanofil line - 8 months Ago

have used nanofil on my feeder reels for the past year casting up to 2and a half ounce feeders casting distance is fantastic .if knots done as shown in instructions you will have no problems just going to buy some more nanofil for my upcoming trip to ireland

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Guest - Learn why the knot breaks before discounting the line - 1 year Ago

I use a uni to uni knot all the time and the trick is doing 2 things. As stated above always wet the live before cinching the knot.DOUBLE the nanofil before tying your knot to flouro or mono. The super thin diameter of the new superlines cut through the leader material. If tying direct to a swivel or lure use the nanofil knot (a polymar knot with an extra loop).

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Guest 8 months Ago

Bin using nano fill for the last 18 months , fishing big lakes for big carp 30 lb plus casting 3 and a half ounce leads ex stream distances to get to the target fish , yes I have found it doesn't have mega abrasive qualitys like say shimano technium line , but what it does make up for is super casting , meaning I can now get to these un fished spots . Knots no problem , you are defanatly doing somthing wrong if it's snapping , and another plus I have found is that yes it is slightly weaker on the knot so if you have to pull for a break , un like most lines and braids cracking off at the reel , this goes on the knot with excess pressure . Thus getting 99.9 percent of your mainline back , seriously for serious anglers top stuff and would be lost without it . Mega

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Guest - Used Nanofil now for a full year - 2 years Ago

I have Nanofil on five rods, 8# and 10#, and have used it at least once each week. We fish for Speckled Sea Trout and Red Drum around docks and boat stands. I use Fluorocarbon leader with a "Red Phillips" knot between the fluoro and the Nanofil. I have not had one knot failure! I retie about every other week when my leader gets shorter than about two feet in length.I always wet all types of knots before tightening them because you will otherwise damage and weaken any line. I've had bull reds go under barnacle encrusted docks and, with care and due diligence, have only lost a couple lures when the fluoro was cut.

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Guest 9 months Ago

used it one day lost lure after lure broke off with very little effort. Will never buy again

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Guest - NanoFil and cold weather - 10 months Ago

I tried NanoFil in cold weather and it was the worst line I have ever used. If little bits of ice developed in the eyes or on the bobber it shredded the line. After one cast I checked the line and it was down to one thing piece holding. Changed reels to another braided line and did not have any problems. The NanoFil found the garbage can!

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Guest - Why Knot?? - 11 months Ago

If Berkley would just make XL in hi-vis. Stop trying to reinvent the wheel.

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Guest - Tie knots with doubled line! - 2 years Ago

I never tie any braid, or Nanofil, with a single strand; I always double the part that forms the knot. Nanofil is GREAT line; but it, like all dynema or spectra line benefits from some bulk at the knot... and a doubled line adds absolutely negligible bulk and complete security from slippage. Try it.

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Guest 1 year Ago

I use a uni to uni knot all the time and the trick is doing 2 things. As stated above always wet the live before cinching the knot.DOUBLE the nanofil before tying your knot to flouro or mono. The super thin diameter of the new superlines cut through the leader material. If tying direct to a swivel or lure use the nanofil knot (a polymar knot with an extra loop).

This is 100% correct

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Guest - nanofil is great - 1 year Ago

Used this line in 14# test all summer on my 11 year old son's spinning for stripers off the beach. No wind knots no tangles he caught stripers to 38" great line no problems

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Guest - Nano fill 3# test "Great" - 1 year Ago

I have used it for 2 years now and have not had a single problem. Catching nice 9 inch sunfish no problem and 15 inch crappies not a break. It is very easy to feel bites. I will say the slip bobber stopper slides down sometimes, but I used a smaller stopper and that ended the problems.. I run the line through the eye twice and tie a shoestring tie and run the hook through the loop. It has not failed me.

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Guest - Nano fil sucks! - 1 year Ago

Tried it this past weekend ,used a palomar knot and wet the the line every time I tightend it down. Lost several lures just casting ,all of which broke at the knot. The slights tug on a snag broke the line ,catching a bluegill would break this line. I absolutely hated it.

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Guest - Nano fil sucks! - 1 year Ago

Tried it this past weekend ,used a palomar knot and wet the the line every time I tightend it down. Lost several lures just casting ,all of which broke at the not. The slights tug on a snag broke the line ,catching a bluegill would break this line. I absolutely hated it.

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Guest - nanofil - 1 year Ago

my 20 lb spool had been sitting in the tackle box almost a year. Tried it the other day. I was very skeptical because of bad reviews.The double palomar knot broke because I didnt wet the line. Tied it again but this time wet the line. It held. Tested all the double palomar, san diego, trilene knots. All held. I will use this set up for jigging because of the high sensitivity.

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Guest - Junk - 1 year Ago

After a week of use it wont take a hook set or any type of shock lost tackle and fish all day long at 12lb test

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Guest - use the recommended double allbright knot for nano to leader - 1 year Ago

Like many of you, I had to get used to nanofil. I use the 0.02 and 0.04 lines with micro jig heads (0.5-1gr) for LRF in the shallows. The cast is just amazing. At first I used a Tony Pena knot but it kept breaking just above the knot. Now I use the double allbright knot and i lubricate before tightening. The knot is so good that when i do get stuck to the bottom, the likelihood is that the snap and jig break rather than the nano/leader. Remember that i am using the thinnest lines available. I have caught sizable fish (up to 750g seabass) without any problem.

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Guest - BERKLY NONOFIL FISHING LINE - 1 year Ago

THIS LINE IS THE WORST FISHING LINE I EVER USED. BUSTS AT THE KNOT OR BEFORE THE KNOT TOO MANY TIMES. I ALWAYS WET MY KNOTS. I LOST TO MANY TROPY FISH AND PRIZED LURES WHERE I USUALLY DON`T LOSE ANY ! ! HAD TO FISH WITH OLD LINE , NEVER BROKE THE REST OF THE DAYS !

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Guest - cranker - 2 years Ago

First time i tied my fav.knot. it frayed the line just above the knot. . I wet it. my knot just wasnt made for this line. i tied a rapala knot no fraying and a strong knot. .now ill fish with it. .

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Guest - Nanofil Redux - 2 years Ago

I am on my second go round with Nanofil. First time was very unsatisfactory but Fter talking with Berkley I learned I was tying incorrect knots. Berkely sent me a new 1500 yard spool and I have started taking more care in knot tying and it works well. New Chartreuse color is amazingly visible and casting distance is spooky long.

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Guest - nanofil is junk - 2 years Ago

this nanofil is junk, usng 14# while bass fishing, the line always breaks foot or two above the knot, actually even had it break while lying in the boat with very little tension on it, going back to fireline, it does not fail me, bass pro, i will be seeing you soon to get my money back for the junk line you sold, a disappointed iowa bass fisher

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Guest - Line is fine - 2 years Ago

I used the same spool for 2 yrs

It casts very well, doesn't tangle , I never had trouble with the knots. As far as abrasion resistance yes it gets frayed pretty easily so I cut some off as needed. After 1 year I turned it end for end so I got double the use

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Guest - Uhh, why so many negative comments? - 2 years Ago

I live on a lake... I fish almost every day. Last summer I put on 100 yards of Nanofil and it lasted me all summer. I never once lost a fish to the line breaking. Caught a 14lb northern pike and I was using 8lb test.

I did occasionally remove the last few feet of the line since it seemed to be fraying. At first I had some issues getting the knots right but if you're tying the right not properly you should have no problems with this line... The only problem I had was with snags, the line was too hard to break. I ended up using a mono leader (10lb) and it I had a bad snag it always broke instead of the nanofil.

As an aside, this line casts ridiculously far.

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Guest - Worst fishing line - 2 years Ago

This line is GARBAGE. Ruined the guides on my ten foot steelhead rod. Tried to contact Berkley and Pure fishing numerous times and they could not care less. So if you buy Berkley Nano garbage and it ruins your rod do not anybody in these companies including the president John Doerr to give a dam.

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Guest - Nanofil 0.20 / 12.64kg breaking strain - 2 years Ago

Dont buy it! Its breaking at only 8lb :-(

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Guest - Nonofil Breaking during cast. - 2 years Ago

I have Nonofil on both my rods - 10lb on baitcaster and 44lb on beachcaster. Even with the 44lb, I can't cast a 1oz lead without it snapping on me. It's not snapping at the knot, it's just snapping partway down the line about halfway from releasing the cast to the bait hitting the water. It's not worn at all, it's brand new line - only one week old. Guides are clean and smooth, nothing else wrong, been checking line for abrasion and have used it according to spool leaflet. I have lost so much gear this last week, that it's costing me more in replacing hooks, sinkers and swivels that it did to buy the Nanofil! I've previously used 20lb mono and braid lines with 4oz sinkers on the beachcaster - half the breaking strain, four times the weight and NEVER had this issue. The same thing happens with the 10lb line on my baitcaster when using a 20g lure.

Absolutely useless! I'm going back to Mono for now, as I'm too broke to be able to afford braid for a while thanks to all the tackle I've lost on the Nanofil and have to replace.

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Guest 2 years Ago

I agree with you 100%!

It is just a junk, junk, junk! Who would return me my money for that shitty line?

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Guest 2 years Ago

Hello! Having looked through a few of the comments I think it's important to provide a few points for people to think about:

1. Berkley NanoFil is not available in 44lb test rating. Perhaps the reviewer is mistaken on the brand and line they have spooled up on their beachcaster. NanoFil is, however, available in 10lb test. That being said, NanoFil is intended to be used on a spinning reel and is not recommended to be used on a baitcaster. Due to the extremely thin line diameter when used with a baitcaster the line will cut into the spool and may compromise performance of the line and cause user issues.

2. The technology behind the NanoFil does not allow for decomposition, especially after two/three weeks of fishing -- it takes an apple core 1-2 months to decompose (faster in warmer climates). NanoFil is made of Dyneema Ultra High Molecular Weight PolyEthylene (UHMWPE) fiber which does not decompose. Therefore, the statement that the line "decomposes" after 2-3 weeks is unfortunately false.

Like any tool, Berkley NanoFil has an intended purpose and works well for certain presentations. It is a great line when used with smaller/lighter baits, especially when it comes to casting distance, as well as for many finesse applications.

If you are looking for one line to be used with any and all applications there are other lines out there that might be better suited to your fishing conditions. Hope this helps clear things up a bit!

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Guest - Nanofil- SUPER - 2 years Ago

I have to say that I was leery of this line but kind of tired of the memory in monfils, even the top line Berkely Professional. I fished 4pound testNanofil on a St. Croix Avid 6'6" ultralight rod. Casting was unreal with 1/32 and 1/16 oz lures. Sensitivity was unparalleled, I missed hits since I was too fast in many cases. Pay attention to the knot. Take your time, wet it, snug it slowly. The one thing I noticed is that it is not as abrasion resistant as good monofil. I found that when you start to feel the line when casting, take off about 4 feet, reterminate and you will be fine. We fished Lake Chetac near Birchwood Wis. and just hammered the panfish. Over 85 hand sized Blue Gill and Crappies. After the first day, I reterminated about twice a day when I felt the line and had not issues. Absoluteley love this line!!

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Guest 2 years Ago

Yeah it really does work great!

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Guest 2 years Ago

nO IT DOESN'T ITS RUBBISH BREAKS AT WAY BELOW THE STATED STRENGHS

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Guest 2 years Ago

It is a JUNK! It gets decomposed in two/three weeks of fishing. I'm very disappointed with such a poor quality and excessively EXPENCIVE fishing line.

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Guest 2 years Ago

I bought a spool of Nanofil when it first came out in 2011. It's still on my reels and I have not noticed any deterioration beyond the normal amount for a superline. I like the smoothness, sensitivity and the additional casting distance without the excessive limpness of braided lines. I've heard Nanofil doesn't take shocks well, but I always use a mono or fluorocarbon leader and rarely fish for species that hit like freight trains.

I have never had problems with knots slipping or the line breaking, but I always wet the line when tightening a knot and I only use the heavier test lines.

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