- Dec 2, 2011
- 646
- 0
- 19,160
This is my first lapping project. I'm lapping 8 enzotech copper vram heatsinks. I'm using wet or dry sandpaper, wet and with dishwashing liquid.
I've been doing this over a couple of days and notice that finished heatsinks that had a mirror finish are growing stains on them, meaning i have to redo the affected ones.
Is there a way to prevent this? I do properly dry them with tissues, clean them with arcticlean and leave them under a fan before setting them aside to do the others.
Before you ask why i am lapping vram heatsinks, they had a layer of aluminum tape with large air bubbles on the contact surface which i removed, but despite my best efforts to remove the adjoining adhesive, only sandpaper can do this effectively. Since I'll be using a thermal adhesive to bond them to the vram, i could do with a good contact surface.
I've been doing this over a couple of days and notice that finished heatsinks that had a mirror finish are growing stains on them, meaning i have to redo the affected ones.
Is there a way to prevent this? I do properly dry them with tissues, clean them with arcticlean and leave them under a fan before setting them aside to do the others.
Before you ask why i am lapping vram heatsinks, they had a layer of aluminum tape with large air bubbles on the contact surface which i removed, but despite my best efforts to remove the adjoining adhesive, only sandpaper can do this effectively. Since I'll be using a thermal adhesive to bond them to the vram, i could do with a good contact surface.
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