The Prolimatech PK-1 Nano Aluminum Thermal Compound is thermal compound that is entirely environmentally safe and recyclable. Even with that being said it is at the head of the pack as far as performance, and is very easy to apply.

MSDS Sheet (.pdf)

Specfic Gravity:	3.2g/cm3
Adhesiveness:	310000Cps
Thermal Conductivity:	10.2 W/m -C
Thermal Impedance:	0.017 C-in2/W
Material Specifications:	Al 60~85 wt% ZnO 15~25 wt% Oil 12~20 wt% Antioxidant 0.5~2 wt%

06-13-2013
Reviewer: panta (21)
retentively easy to apply, but does need abit of messing & smoothing. there''s cardboard applicator which make it easier to apply. i did not see significant idle drop (1-2c) but, the amazing thing is how fast does the temps drop after you go from full load to idle, with in 1 second it can drop from 65 under prime to 40, really amazing quick drop.

12-16-2012
Reviewer: ()
I bought this on newegg.com but its this stuff is crazy, I''ve used it under my cheap antec kuhler h20 and now my temps o my i5 750 @3.2 are 30 c at idle and no more than 45 while gaming and even gta 4 and mine craft don''t bring it past 42 c the greatest choice for compound, and if u have used others and they work fine well this stuff is about 3-5 c better than arctic silver, don''t believe me then go online and watch comparisons and then you will know how good this stuff is

skinneelabs.com September 25th, 2011