1500 Grit Sandpaper?

[Lummoxx]

Where would I find this? Standard hardware store item? Home depot only had as high as 600.

Getting ready to lap my HS, I got a package that had "coarse, medium, and fine", then got a package of 400 and 600...but no 1500.

My HS feels smooth to the touch, but has visible grooves...how critical is it that I start at the coarsest grit?

Any advice, before I start to actually sand appreciated.

Thanks.

 

[Patchmaster]

Try an auto parts store. The very fine grit stuff is used to prepare finely painted finishes.

 

[JoeCrappa]

i wouldn't go that high if i were you. you have to make it PERFECTLY flat if you were to put a mirror image on it. and i find the perfectly flat is very hard considering the way the HS will rock due to change in friction. i read in an article that it is better to lap to 800 grit rather than 1000+. they got better temps with the 800 rather than the 1000. my $.02

 

[Starfoxer]

i wouldnt go that high also. look at my results using only
600 grit sandpaper and using the patented "Hoot" technique.

 

[Lummoxx]

Thanks a lot. Where can I find this "Hoot technique?"

Going to start elbow greasing it in a couple hours.

 

[Koooler King]

Where would I find this? Standard hardware store item? Home depot only had as high as 600.

Getting ready to lap my HS, I got a package that had "coarse, medium, and fine", then got a package of 400 and 600...but no 1500.

My HS feels smooth to the touch, but has visible grooves...how critical is it that I start at the coarsest grit?

Any advice, before I start to actually sand appreciated.

Thanks.

You can find 800, 1200, or even 1500 grit sandpaper at a most auto parts stores that sell auto paint ... NAPA comes to mind. However, agreeing with previous posts, I have not found much to be gained past 600 grit for heat sink base smoothness as long as you have good grease and no deep scratches (at which point, 1500 grit won't help).

 

[Lummoxx]

Thanks, KK...on both threads. I'm settling for the 600 look, just as soon as it looks like Starfox and Hoot's.

I placed my order today at heatsinkfactory, I got the Arctic Alumina to replace my Radio Shack stuff.

Thanks!

Now, I'm off to for a bit.

 

[Koooler King]

A quick thought on this to followup ... use "wet /dry" sand paper and use plenty of water ... it lubricates the process and helps displace the sanding residue particles as you go ... doing so will yield a much better finish for a given grit. Good Luck!


Koooler King

 

[Lummoxx]

The conclusion to my lapping experience is here:
http://forum.oc-forums.com/vb/showthread.php?s=&threadid=72730

Thanks, KK. I had a puddle of water on the paper the entire time, and put fresh on about every 30 seconds....and about twirled my shoulder out of joint...but I got the results I wanted.