Tweaknews.net has posted a review on the Zalman ZM-STG1 Super Thermal Grease

Well, we ended up with no clear winner here. Given the fact that the Zalman offering performed equally as well as one of the industry leaders, it's obviously an outstanding product. The fact that the ZM-STG1 is also almost twice as expensive as its opponent, takes some of the shine off of it.

Zalman ZM-STG1 Super Thermal Grease Review