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Plasticizer Leaching: Stay Away from Tygon 3603 Tubing.

15K views 23 replies 21 participants last post by  b0sse  
#1 ·
A few weeks after my first WC build I noticed my clear Tygon tubing was fogging up. At first I thought it was algae or some other bacterial growth. But after searching the internet and a forum post, I came to the conclusion that it was plastizier in the tubing that was causing the discoloration. Apparently the 3603 tygons are infamous for this issue yet many people recommend this tubing.

So I ripped out all the tubing and ordered a new brand. Primoflex Pro LRT this time. But as an experiment, I mixed both the tygon 3603 and the primoflex in the same loop.

  • Same water.
  • Same loop.
  • Same conditions.
  • Installed at the same time.
  • Distilled water, Silver Coil, 2 drops Dead Water, nothing else

Yet after only a month. Look at the results...

450

Seriously, why would anyone recommend or use Tygon? It's expensive as hell, and turns into this fugly color after only a month. Now I know most people use colored tubing/dyes, but even then. Do you really want this gunk in your loop? Discoloring tubing and potentially clogging water blocks?

So there it is. Don't use Tygon 3603 tubing.
 
#3 ·
Wow you invested a month into this experiment! +Rep for you man. I'm putting my loop together slowly but surely for christmas and was thinking about clear tubing but the discoloration I've seen in some loops really put me off of it. Was thinking Primochill UV blue or clear. This provides me with more info for my decision thanks!
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#4 ·
Quote:
Originally Posted by Greenback View Post

of what Iv'e seen most on here recommend primochill
I chose Tygon after reading up and listening to people talk about how it's "pricy but the best" , "laboratory grade tubing", and "its super flexible and never kinks" I never even heard of plasticizers before this issue, let alone know that Tygon 3909 were filled to the brim with the stuff.

I just wanted to put this out to help someone else out there not fall into the same trap I did. I probably spent about 40 dollars on tygon tubing and a lot of wasted time trying to figure out the clouding.

Quote:
Originally Posted by discipline View Post

Wow you invested a month into this experiment! +Rep for you man. I'm putting my loop together slowly but surely for christmas and was thinking about clear tubing but the discoloration I've seen in some loops really put me off of it. Was thinking Primochill UV blue or clear. This provides me with more info for my decision thanks!
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Thanks.

I did this to be 100% sure that it was the tubing itself causing the issue and not something I did.

The clear primoflex still looks new after a month. But that could change in the months to come of course.
 
#6 ·
Quote:
Originally Posted by Caleal View Post

Tygon R-3603 does it too.
445

The Tygon B-44-4X tubing I replaced it with is starting to look bad too, and it supposedly has less plasticizer in it.

I've been thinking of trying Tygon plasticizer free tubing, but it is very expensive...
Im still waiting to see if anyone used the Tygon plasticizer free tubing yet. But until then, Im just going to stick with the Pro LRT.
 
#7 ·
Do not buy the Tygon 2375 plasticizer free tubing. I've been using Tygon 2375 tubing in my rig for 4 months now. Brand new the tubing wasn't the clearest and would get scuffed up pretty easily.
450

Also after a couple months they started to get a very light yellowish tint.
 
#9 ·
I'm slightly confused are you actually talking about Tygon 3603 as I've never heard of 3909?

I know that Tygon B-44-4X does have plasticiser but even so that picture is shocking as it is beverage tubing specially formulated for transferring a wide variety of beverages including soft drinks, fruit juices, flavored teas and bottled water!
 
#10 ·
Quote:
Originally Posted by EasterEEL View Post

I know that Tygon B-44-4X does have plasticiser but even so that picture is shocking as it is beverage tubing specially formulated for transferring a wide variety of beverages including soft drinks, fruit juices, flavored teas and bottled water!
My picture was of R-3603 about a month before I replaced it. It had gotten much worse than the picture by then.
The B-44-4X tubing has done better, but is starting to look bad after only 2.5 months.

I think part of the issue with my system is that it is under full CPU and GPU load 24/7, and was in some relatively high ambient conditions over the summer.
For the price of Tygon tubing, I expected it to hold up better with 34-38ºC water flowing through it though...

The discoloration of the tubing doesn't actually bother me, but the micro channels of my CPU and GPU blocks get fouled with plasticizer, which IS a problem.
 
#11 ·
My primoflex looks just like your tygon after only 2 weeks. I flushed the entire system with hot vinegar water for 30 minutes and then distilled water. I only put in distilled water and a killcoil, plus a few drops of water wetter I had in the garage. Not really sure what happened there.
 
#12 ·
Quote:
Originally Posted by BioHzrd View Post

Moral of the story, don't buy Tygon tubing
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Yeah I guess that's the main point of this thread. Tygon sucks.
Quote:
Originally Posted by EasterEEL View Post

I'm slightly confused are you actually talking about Tygon 3603 as I've never heard of 3909?
I know that Tygon B-44-4X does have plasticiser but even so that picture is shocking as it is beverage tubing specially formulated for transferring a wide variety of beverages including soft drinks, fruit juices, flavored teas and bottled water!
You are correct. I meant 3603. I edited my post. Thanks.
 
#14 ·
Quote:
Originally Posted by BioHzrd View Post

Moral of the story, don't buy Tygon tubing
thumb.gif
Bingo!
Quote:
Originally Posted by EasterEEL View Post

I'm slightly confused are you actually talking about Tygon 3603 as I've never heard of 3909?
I know that Tygon B-44-4X does have plasticiser but even so that picture is shocking as it is beverage tubing specially formulated for transferring a wide variety of beverages including soft drinks, fruit juices, flavored teas and bottled water!
That's a scary thought. So all the fountain drinks you may be consuming has plasticizer floating around in it. Spec-effing-tacular!
rolleyes.gif
Quote:
Originally Posted by Scorpion49 View Post

My primoflex looks just like your tygon after only 2 weeks. I flushed the entire system with hot vinegar water for 30 minutes and then distilled water. I only put in distilled water and a killcoil, plus a few drops of water wetter I had in the garage. Not really sure what happened there.
That's good stuff.

But that's weird that your loop discolored already. Have you tried taking one of the tubes off and seeing if it's just a residue left on the inside of the tubing?
 
#18 ·
I have also had this issue as well, but i didnt mind it with mine cause it became UV reactive when it got cloudy so it kinda looked good under a cold cathode UV light.
But i had alottttt of air and bubbles in my loop for a long time, so i put about 1/8 of a cup of tap water in the RES.
After 20 minutes the loop was cleared from any cloudiness (also loosing the UV re-activeness) and after 24 hrs there was no air or bubbles whatsoever. Ive been using the Koolance coolant.

Ive heard that its not recommended to use tap water but hey it was magical in my case. Temps are even better than before by at least 10c
So before you flush, im suggesting to try the tap water, then bleed it.

BEFORE:
-
700
700

AFTER:
-
700
700
 
#19 ·
Hello ad120, I dont know why your tubing discolored like it did? I have been using tygoon tubing since Danger den started selling it, I have been running with this tubing for about 1/12 to 2 years Before I started to run into that problem, I change tubing on just about every upgrade about every two years, The only time I have seen this discoloring is when people use to much additive's or Dye, and or try and recycle there tubing by bleaching it or leaving it soak in dawn dish detergent, All my metal is copper and nothing else, I just use distilled water and a tea spoon of zerox super coolant which many dont care for, But it works for me, People say its conductive Maybe and maybe not! Just running Distilled water through a loop passing through the copper radiators and blocks releases over a short amount of time copper molecule's enough to be conductive, So I have been trying to change the distilled water in my loop more often then I have been maybe twice a year or more, ( yah I know it can be a pain ) This is just my Two cent's worth, BTW it's sad to hear that Danger Den is no more as that was all I ran with, They cost a little more, But there water cooling was top notch,
 
#20 ·
I know this is an old thread but I am going to bump it.

I for one have never had issues with Tygon in the past so I was a bit shocked to find this thread. I am working on two new builds so I have been doing some research on parts and what not. I am curious, how did everything pan out being later on down the road?
 
#21 ·
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#22 ·
I've used Tygon Silver for years....
 
#23 ·
I got tygon plasticizer free tubing (Tygon E-1000) . Used with some antikink, it does the job nicely. After my last problem with the extremely horrible plasticizer problem from primochill i didnt want to take any risks with plasticizer ever again. It nearly ruined my bay reservoir, and I don't want to have to rebuild every couple months.
 
#24 ·
Hmm, I'm not seeing any water discoloration in my res... I'm using PrimoFlex Pro LRT in white... I'm a little confused on what the plasticizing is going to do the system.