I was reading a shop web page and looking at different lines and it seems they can absorb water and can be weaker when wet ???
So do we need to take that into account , Do they absorb water and get weaker when wet and are some worse than others ??
Here is the info on 2 differnt lines :

Wychwood Sub Surface
Features:
Exceptionally strong monofilament
Absorbs water to sink more readily<<<<<<<<<<<<<<<<
Clear with low visibility
Low stretch line to feel subtle takes
Ideal for wet fly and nymph fishing
Clear, 50m spools

Maxima Ultra Green Monofilament 100m Spools
Features:
Very strong
Holds knots perfectly
Extremely abrasion resistant
As strong when wet due to its water resistant coating <<<<<<<<<<<<
With such a fine balance of elasticity and strength, it gives the optimum fishing performance

This is a new one on me as I thought that mono was water proof

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Your fish ----> ><((((º> My fish ----> ><(((((((((º>
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Cheers Danny

Co-Founder of S.S.F.D 2010

Nylon monofilament is capable of absorbing water and as such will weaken.

PVDF (fluorocarbon) monofilament will not absorb, and is not weakened by water.

I can test this if you want to send me some samples.

You've got to ask yourself what water absorbtion would do to the molecular bond strength of the nylon? Also, how porous is nylon monofilament in the first place? It's very easy to make a generalisation, but personally I'd like to see some science applied.

Nylon (poly-amide) will also rot, especially in sunlight. Fluorocarbon will be much more resistant.

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Save the softmouth trout

It makes me wonder if that is why some seem to be weaker for the same given diameter/BS than others . It would also answer why maxima seems to punch above its weight ( because it has a coating )

Not sure what the testing will provide , what test did you have in mind ??

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Your fish ----> ><((((º> My fish ----> ><(((((((((º>
__________________

Cheers Danny

Co-Founder of S.S.F.D 2010

I can test whether the 'coated' material is any different from standard. Produce stress/strain data for dry and soaked material etc.

Heres some interesting reading ,firstly

about nylon monofilament...

http://www.ultimauk.com/fishing-line.htm


second fluorocarbon ........

http://www.ultimauk.com/fluorocarbon.htm


weaker mono when wet ....

http://www.ultimauk.com/fishing-line-faq.htm

---------- Post added at 11:12 PM ---------- Previous post was at 11:03 PM ----------

fluorocarbon will not rot ,and is not affected by uv rays .........

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WHEN YOU LEAVE THE RIVER, TAKE NOTHING, AND LEAVE ONLY FOOTPRINT'S!!!

THA CAN TELL A YORKSHIREMAN ,BUT THA CAN'T TELL HIM MUCH !!

Is this neccessarily a good thing given the number of trimmed lengths left by anglers? Maybe something which decays (even slowly) is better for the environments where we find our sport?

personally, no i dont think it is a good thing in that respect,what anglers need to do is any old mono ,fluoro etc is rather than just dump it in the in a jumbled mess etc is cut it all up into very short lengths, as dont forget it will go to the tip like that where it has every chance of entrapping wildlife on the tip itself, i know it doesnt help with the decaying side of things but every little helps in one way or another ,would be interesting to find out if theres a process to degrade fluoro ?? mine i cut up short and is put in a plastic bag then put into the recycle bin whether it actually ends up being recycled or not i dont know but if it goes to the tip i know its not a danger to wildlife...

__________________
WHEN YOU LEAVE THE RIVER, TAKE NOTHING, AND LEAVE ONLY FOOTPRINT'S!!!

THA CAN TELL A YORKSHIREMAN ,BUT THA CAN'T TELL HIM MUCH !!

Have never noticed any significant weakening of leader material after a days fishing, thats not to say that it isnt weaker, just an indication that the effect on th breaking strain could only be minimal, and perhaps this phenomenom should only be of consideration when using a lighter breaking strain.

Plumpy