Best sanding paper for lapping

biuro74

biuro74

biuro74

Associate
Joined
17 Feb 2009
Posts
1,239
Hi,

When I've done my first lapping I thought sanding paper was.. sanding paper and nothing more.
But I run out some sheets and accidentaly bought "unknown" paper. I was very impressed that lower gritt sheet is as much good as higher previously-used "old" sheet in finishing terms.

So far I discovered:
* Klingspor - is good in low gritt values (400) which scuffs nikel layer well, and sometimes is able to almost polish copper layer. 600, 800 and 1000 gritt values are not so good, and 2500 gritt sheets barely make CPU a shine. Klingspor is being sold in A4 size.
* Tamiya - best for finishing IMO. Final effect with polishing using 1500 gritt sheet was better than using Klingspor 2500 gritt, and costed me less time. Tamiya are being sold in some exotic size, like 3.5"x10", and are more expensive.

What was your experience with sanding paper brands ?
 
biuro74 said:
So far I discovered:
* Klingspor - is good in low gritt values (400) which scuffs nikel layer well, and sometimes is able to almost polish copper layer. 600, 800 and 1000 gritt values are not so good, and 2500 gritt sheets barely make CPU a shine. Klingspor is being sold in A4 size.
* Tamiya - best for finishing IMO. Final effect with polishing using 1500 gritt sheet was better than using Klingspor 2500 gritt, and costed me less time. Tamiya are being sold in some exotic size, like 3.5"x10", and are more expensive.
Click to expand...

jaybee said:
Go to shop. Buy a set of varied grits from 200 - 1500 wet and dry. Lap. Done.
Click to expand...

i dont think this was the type of answer you were looking for :p

i'd like to know as well what brands are best for lapping :)
 
panyan said:
i dont think this was the type of answer you were looking for :p

i'd like to know as well what brands are best for lapping :)
Click to expand...

Sure ;-) Sometimes I think people read just the title and give the "default" answer. I'm curious what Turing's test whould say in such case ;-)
 
I don't understand why you would think a particular brand is better than another when technique and proper application is 100 times more important. It's like discussing 1hp on a racecar, driver will make more difference it's not worth discussing.
 
The real answer to the question is, none.
As all modern CPU's have an IHS soldered on, no amount of lapping will make any real world difference at all.

I'm not even 100% convinced that it made all that much difference years ago with naked cores.....................but nowdays it's not worth the elbow grease.
 
It helped a bit with my previous q6600 and TRUE cooler, the base on the cooler was pretty uneven and had a few machine marks in it.
 
It used to make a huge difference to temperatures (~10C) when the IHS wasn't flat on early Core 2 CPUs, these days, not worth the bother.
 
Thank you for answers, but anything being not direct answer is simply off topic which I'm not interested in, which leads to useless comments like this:

Jaybee is still before breakpoint, so once he discovers it, there's no point to prove that the same products, but different brands *do* make a difference (there's milk and "milk", coffee and "coffee" etc). Technique is important, too - but with worse quality material you have to spend more time to gain the same effect if you had better quality one. I presume you didn't even read what I wrote regarding to my personal discovery.
kitfit1 doesn't believe in lapping, so he must meet uneven IHS as a proof that not everything is so ideal.. And BTW - for ****S***, not everyone has got the newest Sandy Bridge.

So please, no more off topic. Please *1.000.000.

3M and Mirka brands - have you got any comparison, or are they "just good" ?
 
I was just giving good advice. Buy some and get it done. I guarantee if you got a machine to do it 100% the same each time and you used two different brands with identical grits, the difference in temps would be unmeasurable.
 
jaybee said:
I was just giving good advice. Buy some and get it done. I guarantee if you got a machine to do it 100% the same each time and you used two different brands with identical grits, the difference in temps would be unmeasurable.
Click to expand...
Indeed, if you had spent as much time lapping as you've done with this thread you could have lapped 2 CPUs with any old sandpaper.
 
go to halfords their wet dry paper is good, or to any car body finisher place that will be the cheapest place and buy all the grades of wet/dry from 400-2000 keep going up the grits till you get to 2000 but nowdays it doesnt really make any difference at all
 
biuro74 said:
Thank you for answers, but anything being not direct answer is simply off topic which I'm not interested in, which leads to useless comments like this:

Jaybee is still before breakpoint, so once he discovers it, there's no point to prove that the same products, but different brands *do* make a difference (there's milk and "milk", coffee and "coffee" etc). Technique is important, too - but with worse quality material you have to spend more time to gain the same effect if you had better quality one. I presume you didn't even read what I wrote regarding to my personal discovery.
kitfit1 doesn't believe in lapping, so he must meet uneven IHS as a proof that not everything is so ideal.. And BTW - for ****S***, not everyone has got the newest Sandy Bridge.

So please, no more off topic. Please *1.000.000.

3M and Mirka brands - have you got any comparison, or are they "just good" ?
Click to expand...

You do know that insulting other members here is against the rules................or perhaps you just didn't read the rules.................or perhaps you just don't give a toss ?

biuro74 said:
Yes, it means in English: no more off topic, please as it leads to such useless discussion.
Click to expand...

What i had to say, jaybee and Jokester were very much ON TOPIC.
If you didn't like the reply's.......................then just ignore them. But lapping modern cpu's and hsf's will make little or no difference to your temps and more importantly will make absolutely no difference to your clock.

So go ahead and try as many different makes of paper as you like...................spend the whole of what is left of this summer swapping from one make to the other..................................................at the end your overclock will be the same as it is now along with your cpu temps. The loser in this futile exercise will be you. If you do manage to lower your cpu temps by 0.5c then i'm shure the whole of Overclockers UK will be riveted to the thread to see how much your overclock increased.
 
Sandpaper is sandpaper. Brand makes no difference. You'll probably find it's all made in the same place and rebranded anyway.

If sandpaper is 1500 grit, then all brands are the same. They have to be, to be 1500 grit. One brand doesn't carry a better quality abrasive than the other, it's just abrasive.

I understand what you're saying, you want to discuss brand comparison and results, but you have to understand that there is no comparison to be made.
 
I go to work and use the lapping tables :p

I did my E6600 and Tuniq 120 on them. Perfectly flat. None of this sandpaper malarky.

As to Damcat, yes, quality actually DOES make a difference. There is a difference in how fast it lowers the grit value in use, the adhesives used, the paper used etc. Grit value is not everything.
 
You must log in or register to reply here.
Back
Top Bottom