Dude, there are differrent kinds of blasting as you know la. The media that I used was made of plastic. So that's why I didn't run such a high risk. I think sand will be ok as well depending on the grit of the sand, I strongly suggest the finest grit you can find. My recommendation to do it is to start at a very very low pressure. I don't know how low for sand coz I didn't use sand but I started mine at 20psi and moved up about 5. Max psi I had for plastic was about 25 only. No more.

By the way, I didn't do it myself because I didn't have any experience with blasting. I had a colleague who's darn good at blasting help me do it. If you wanna do I also strongly recommend getting help from somebody who's done the process before. Blasting is like an art apparently, must have a feel for it.

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Added on August 31, 2008, 6:46 pm

Yea la I agree but you know anywhere can find this kind of service ar? I always wanted to try out some art on the laptop..... my skill not so great prefer to pay a pro to do it......

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Added on August 31, 2008, 10:16 pm

As a matter of fact, it did!!