PDA

View Full Version : Material composition


eobard
12-06-01, 08:54 PM
I'm thinking of gluing some aluminum ram sinks on my video card. Given the material composition of the card and the aluminum of the sinks what kind of superglue should I use? I've got "LePage contact cement #6" and it's rated 2 stars for metal but I have no idea what category the card would fall under. Any ideas?

eobard
12-06-01, 11:18 PM
BUMP?

thestramel
12-06-01, 11:22 PM
Well, if it's anything like krazy glue it should do the trick (pretty effective with most types of bonds). You might want to just superglue the corners so that it's easier to remove them.

eobard
12-06-01, 11:38 PM
Originally posted by thestramel
Well, if it's anything like krazy glue it should do the trick (pretty effective with most types of bonds). You might want to just superglue the corners so that it's easier to remove them.

That's the plan. Also I'm probably going to put thermal compound on it. Anyone know if the white generic crap radio crap sells is electrically inert? :confused:

azhari
12-06-01, 11:40 PM
Why can't you use Arctic Silver/Alumina cement? Superglue can't be good at heat conduction.

eobard
12-06-01, 11:50 PM
Because I don't have the $$$ for arctic silver, it's not worth the expense for such a low end card. The glue is not going to touch the chips, it's going to connect the part of the sink that extends past the chips to the board itself.

Oni
12-07-01, 12:56 AM
I wouldn't use ASII on a videocard, unless it were mixed w/ ASTE. Its too conductive. The crap you get from Ratshack should work fine. I believe that its silicone-based, so its non-conductive.

Silversinksam
12-07-01, 03:20 AM
Not sure about the electrical resistance of Superglue, But a friend of mine once got a tiny amount of superglue gel on one of his Mobo fan header pins and he couldnt figure out why his fan wouldnt run lol

Took a scalpel and scraped the glue of the mobo fan header and it worked after that.....It was only a tiny amount of glue paper thin.

I asked him how the hell he got the glue there in the first place and he just shrugged.


Heres the MSDS for Krazy glue

Physical and Chemical Properties
Percent Volatiles Not determined
pH @ 25 C Not available
Specific Gravity 1.05
Appearance Colorless liquid
Autoignition Temperature 485 deg C
Boiling Point 62 deg C (5 mm Hg)
Vapor Density (Air=1) > 1
Vapor Pressure, mm Hg @ 20 C 0.13 (@ 20 deg C)
Evaporation Rate (Butyl Acetate=1) < 1
Upper/Lower Flammable Limits Not available
Up/Lower Explosive Limits, % by Vol Not available
Flash Point 83 deg C (CC)
Freezing Point < -20 deg C
Odor Irritating
Odor Threshold, ppm Not available
Solubility in Water Negligible
Coefficient of Water/Oil Distrib. Not applicable