Elite Bastards posted a review on the OCZ Freeze thermal compound

Opening up that packaging, the tube of OCZ Freeze itself is a rather small, stubby affair. Beyond that, the actual thermal compound itself is a reasonably thin and easy to spread paste, which makes application a piece of cake. Another bonus of this particular compound is that OCZ claims that it requires no 'burn-in' time to reach its optimum efficiency - While many thermal interface materials require around 48 hours of use to reach their most effective level of cooling, OCZ's Freeze should immediately start to show the full cooling benefits it has to offer.

OCZ Freeze thermal compound Review