So you’re looking to shave off a few degrees, and have a good cooler already, but do not want to spend more money on a bigger cooler, than you should lap your HS/F.
Most coolers say they are lapped from the factory, but if they are lapped, they are most likely not lapped well. I have seen a few coolers and waterblocks that are an exception.
Anyway, I am going to lap a HS/F for fewer than 7 dollars using a few household items and a few things that you can pick up at a local hardware store.
What you will need
Sandpaper:
600 grit 1.00
800 grit 1.00
1000 grit 1.00
1500 grit 1.00
2000 grit 1.00
Things you need from around the house
Dish Soap
Paper towels
and the soft drink of your choice
Ok,
To get started you need to take your HS/F and take the fan off of it
Next you need to take and fill a cup with water
After this, you need to dip the sandpaper in water. You should start off with 600 grit. Take and add a tiny bit of soap on the sandpaper. Start to lightly and gently sand the HS/F surface down. Do not go in one direction. You need to go ahead and sand in all different directions.
After this, repeat the process with a higher grit of sandpaper. Keep on doing this up to 2000 grit. When you are working with the 2000 grit, you should take about 15 minutes, and go against the groove of the HS/F. You will need to go ahead and sand it till it becomes somewhat mirror like, enough to where you can see your nose somewhat. You do not want it to be 100% mirror like. This is a rumor. Just because it is mirror like, does not mean that it is smoother.
Your HS/F should look like this when done.
Now you need to wash off your HS/F in water. Wash all of the dirt off that got on it from the
lapping.
After it dries wipe the HS/F off with alcohol, and it should look like this
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