JBweld....

[RainMaQer]

Ok... I know... I could think of better questions... but this one is buggin me. Anyone know the thermal conductivity of JBweld? Good/bad... null? Thanks.

[jbslow]

I have a unopened package of JBweld right hear let me see what it says...

J-B Weld Max. temp is 600°F

J-B Weld tensile strength is 3960 PSI

Does not conduct electricity

Cure time approx. 15 hours

oops I thought you wrote electrical conductivity like you were planning on filling XP pitts with this stuff.

[Sonny]

There is an article on the front page that shows one guy who used JBWeld instead of thermal paste to glue on his HSF to the CPU. He got better temps with it. Can't seem to find it right now.

[ButcherUK]

Yes that was mainly due to the thinner layer he was able to achieve I think not an inherent property of jbweld. The thermal conductivity isn't likely to be to bad, but it's not going to be good either. If you're jointing waterblocks remember that most of the actual transfer is done by the base anyway, regardless of the design of the block.

[RainMaQer]

I'd love to tell you guys more on this prototype... but for know I'll tell you I'm using my basic block and a 3mm silver plate:D I just want to try and get the maximum heat conductivity between the silver and aluminum....The water will have direct contact with the silver... but just to make it better... I was thinking that good transfer between the silver and aluminum would help out a little... especially on an AMD system... if the water isn't able to cool the silver fast enough... at least the heat could escape (somewhat) to the aluminum.

[Diggrr]

I've heard the term "thermal solder" used on a couple of science websites, but know nothing about it or where to get it. You might try a google search for it.
Heck, if it works as good as it sounds, I might look for some myself cause I make my own blocks too.

[RainMaQer]

Originally posted by Diggrr
I've heard the term "thermal solder" used on a couple of science websites, but know nothing about it or where to get it. You might try a google search for it.
Heck, if it works as good as it sounds, I might look for some myself cause I make my own blocks too.

Gonna be participating in our friendly competition?

[Diggrr]

Nah, I'm pretty happy with mine, and the way people argue about the best this and the best that, I'm gonna just go about my business keeping cool.

Right now I'm not using any solder joints either, I have a lexan top/holdown that is glued over the copper passages with marine goop. Some day when I have some cash though, I'm gonna be looking up the local machine shop and put some watercooling vendors to shame.:D <fingers crossed>

[CrystalMethod]

Originally posted by RainMaQer
I'd love to tell you guys more on this prototype... but for know I'll tell you I'm using my basic block and a 3mm silver plate:D I just want to try and get the maximum heat conductivity between the silver and aluminum....The water will have direct contact with the silver... but just to make it better... I was thinking that good transfer between the silver and aluminum would help out a little... especially on an AMD system... if the water isn't able to cool the silver fast enough... at least the heat could escape (somewhat) to the aluminum.

Sounds like you have something really cool in the works. Just remember to post pics of it when it's finished. :D

[UserName]

another cool thing about silver is you don't need to worry about stuff growing in your water. Silver is toxic

[RainMaQer]

Pics will be going up after it wins the "Friendly Competition";)

[jbslow]

Originally posted by UserName
another cool thing about silver is you don't need to worry about stuff growing in your water. Silver is toxic

Really no algea at all someone else said zink does the same thing. Let me know some other metals that help cause I could just drop a piece or something in my reservoir and I'l be set. Anything to worry about with this type of growth control.

[res0r9lm]

I don't know where you heard that silver was toxic but what about silver spoons??

[res0r9lm]

zink is used to keep corrosion down in boats by taking the blunt of salt water

[UserName]

What about silver spoons?

Are you suggesting they cant be toxic? Like nothing man ever made and used was toxic? Like all the indoor air we breathed for nearly 100 years had asbestos in it.

ya silver spoons are toxic. its slow and takes a long time.

Most historians attribute the fall of the roman empire in part to the fact they used lead in their plumbing. funny thing is the plumbing is what made them famous.