Putty & Phase Change
Between a fixed-thickness pad and a runny paste sit two materials most builders never try. Putty is kneaded to whatever height the gap happens to be. Phase-change sits solid at room temperature and turns into a paste-thin film the first time the processor gets hot.
- 5 products
- $4.99 – $40.99
- 5 of 5 rated
GN-Ultimate 6 W Thermal Putty, 30 g
30 g jar
4.2 10 ratingscounted across all 3 pack sizes of this compound
GN-Ultimate 6 W Thermal Putty, 50 g
50 g jar
4.2 10 ratingscounted across all 3 pack sizes of this compound
GN-Ultimate 10 W Thermal Putty, 50 g
50 g jar
4.2 10 ratingscounted across all 3 pack sizes of this compound
Not sure this is the right material?
| Thermal pad | Thermal paste | Putty | Phase change | |
|---|---|---|---|---|
| Gap it can fill | Fixed 0.5 – 3.0 mm | Microscopic only | Anything you knead it to | 0.2 mm, self-levelling |
| Conductivity here | 12 – 15 W/mK | 3.8 – 8.5 W/mK | 6 – 10 W/mK | Paste-class once melted |
| Goes on | Peel and lay flat | Pea, line or spread | Roll, press, trim | Drop in dry, heat once |
| Comes off | In one piece | Wipe with alcohol | Peels and rolls up | Scrape after cooling |
| Reusable | Usually yes | No | Yes, re-knead it | No |
| Made for | VRM blocks, VRAM, M.2 drives | CPU and GPU dies under a cold plate | Odd heights, laptop shims, mixed stacks | Laptops and set-and-forget builds |
Elsewhere in the range
Thermal Pads
Silicone gap fillers from 12 to 15 W/mK, cut to size for VRM blocks, M.2 drives and graphics-card memory.
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