GP-Extreme 12W Thermal Pad, 80 x 40 x 0.5 mm
12 W/mK · 80 × 40 × 0.5 mm
4.7 3,062 ratingscounted across all 5 thicknesses of this sheet size

Thermal Pads
4.5 277 ratingscounted across all 4 thicknesses of this sheet size
Two 80 x 40 mm sheets of 3.0 mm GP-Extreme, 12 W/mK: the deep-gap thickness supplied in the quantity that deep gaps actually need.
$24.99
In stock
Sold and shipped by an authorized retail partner. Price shown was current when this page was built.
Check price and buyThree millimeters is the thickness that runs out fastest, because the gaps that call for it are the biggest ones on the board. Console heat spreaders, laptop shrouds and standoff-mounted shields all want long, wide pieces. This pack puts two 80 x 40 mm sheets of 12 W/mK GP-Extreme in the box so a full teardown can be finished in one session.
Compact systems tend to need several thick pieces at once: one over the power section, one linking a shroud to a board, one under a chassis panel that doubles as a heat spreader. Trying to do that from a single sheet usually means compromising on the last piece. Two sheets removes the compromise.
A dull knife drags rather than cuts through thick filler, leaving a torn face that will not seat flat. Change the blade before starting rather than halfway through, and cut against a metal rule with the blade held vertical. With two sheets in hand there is also no penalty for scrapping a cut that came out ragged.
It is tempting to treat a deep pad as a cushion that will absorb any error, but the opposite is closer to the truth. A thick piece that is oversized will hold a shield off its posts, and one that is undersized will tilt under clamp. Measure the island, cut to it, and let the thickness do only the job it was chosen for.
Unopened, this compound is stable and does not harden, so the second sheet can sit in a drawer until it is needed. Keep it flat, keep both liners on, and avoid stacking heavy tools on top of it, since 3 mm material takes a permanent impression from anything left pressing on it.
| Thickness | Pack | Price | |
|---|---|---|---|
| 3 mm this page | 2 sheets | $24.99 | |
| 0.5 mm | 1 sheet | $8.99 | View |
| 0.5 mm | 2 sheets | $17.99 | View |
| 1 mm | 1 sheet | $9.99 | View |
| 1.5 mm | 1 sheet | $11.99 | View |
| 1.5 mm | 2 sheets | $19.99 | View |
| 2 mm | 1 sheet | $12.99 | View |
| 2 mm | 2 sheets | $22.00 | View |
| 2.5 mm | 1 sheet | $13.99 | View |
| 3 mm | 1 sheet | $13.99 | View |
12 W/mK · 80 × 40 × 0.5 mm
4.7 3,062 ratingscounted across all 5 thicknesses of this sheet size
15 W/mK · 90 × 50 × 0.5 mm
4.7 1,021 ratingscounted across all 5 thicknesses of this sheet size
15 W/mK · 90 × 50 × 0.5 mm · 2 sheets
4.8 734 ratingscounted across all 4 thicknesses of this sheet size
15 W/mK · 120 × 20 × 0.5 mm · 2 sheets
4.6 491 ratingscounted across all 4 thicknesses of this sheet size