G107 Silver Paste: Slick Silver or Sticky Situation?
January 19, 2026
An in-depth review of G107 Silver Paste from GENNEL, exploring its thermal performance, application tips, consistency, and longevity to help budget PC builders decide if it’s the right thermal compound for their rigs.
G107 Silver Paste: Slick Silver or Sticky Situation?
Unpacking the pros, cons, and quirks of this budget-friendly thermal grease
G107 Silver Paste: Slick Silver or Sticky Situation?
If you’ve wrestled with a stubborn heatsink or watched your CPU temps flirt with meltdown, you’ve probably toyed with a handful of thermal pastes. The G107 20g Silver Paste by GENNEL swings into view as a budget champion—20 grams of silvery goop promising a respectable 3.17 W/m·K of heat transfer. But decent specs on paper don’t always translate to rock-solid real-world performance. Let’s dive in and separate the gold from the grit in this paste-packed bottle.
What’s in the Bottle?
Open the tube and you’ve got a hefty wad of silver-tinted grease plus a tiny plastic spatula. GENNEL touts a wide temperature range (-50 °C to 240 °C), non-corrosive, non-toxic formula and zero electrical conductivity. It’ll play along with CPUs, GPUs, LED arrays or even that custom heatsink you milled out of a spare block of aluminum.
Key highlights:
- Thermal Conductivity: Rated above 3.17 W/m·K.
- Capacity: 20 g of paste—enough for multiple desktop builds or a small army of consoles.
- Extras: A ridged lid (which can be finicky to screw back on tight) and a basic spatula for spreading.
It checks all the boxes on paper, but the devil lives in the details.
Thermal Street Cred
People have clocked idle drops of 2–3 °C on midrange CPUs compared to stock pastes, sometimes even squeezing out a 15 °C improvement when spreading it just right. That’s solid work for under ten bucks. High-load tests on older laptop chips have seen temps tumble from the low–100 °Cs down into the 70 °Cs. If all you need is an affordable way to tame a mid-tier rig or keep a console cool, G107 pulls its weight.
But here’s the catch: a handful of GPU repastes actually reported higher temperatures after swapping in G107. Stack heatpipes, tight fins and uneven contact surfaces can expose sloppy spread or inconsistent thickness. The paste does conduct heat—it just isn’t as mercilessly forgiving as premium compounds when your mounting pressure or surface finish falls even a hair out of spec.
Spreading It Thin
The supplied spatula is a decent start, but no magic wand. That silver compound can feel like butter on paper tests, but squeeze it onto a chip and you’re wrestling a gummy blob. Apply a rice-grain amount and push it out; if you’re too heavy-handed, you’ll leave gaps, or worse, overspill onto PCB traces.
Decisive advice:
- Prep: Always bust out isopropyl alcohol and a lint-free wipe. Any oil or residue turns this stuff into a weekend project.
- Technique: Use the spatula’s flat edge to knife-spread a wafer-thin coating. Think of it as painting a desert rocky trail—light strokes.
- Check: Slide off the cooler after your initial torque run and eyeball the spread. Top-tier brands flow a touch more, so G107 demands more hands-on fuss.
Thick or Just Right?
Consistency reports swing wildly. Some builders praise the “not too runny, not too set” balance; others call it “greasy fibers” or “globby until you thin it out.” That variability hints at batch inconsistencies—temperature during shipping or storage can stiffen the binder, making one jar feel like toothpaste and the next more like glue.
The upshot: you’re signing up for a learning curve. If you’ve only ever squirted Arctic Silver or Thermal Grizzly, plan on a few test passes on scrap hardware before deploying on your flagship machine.
Longevity Under Fire
GENNEL claims long-term stability, but talk of smelling burning plastic and metal after a couple weeks pops up in corners of the community. And while 80% of users haven’t seen degradation, a solid 20% wonder if it’ll last past a month under harsh loads.
The paste holds up fine for day-to-day gaming or light editing sessions. But if you’re running a 24/7 render farm or nonstop benchmarking at 100% load, that long-term promise feels shaky. Premium blends with nano-ceramic or liquid metal formulas outlast generic silvers when it comes to high-duty cycles.
Quantity vs Storage
Twenty grams is a ton of paste: roughly enough for 12–20 desktop CPU applications if you spread micro-thin. For a tinkerer who repastes a couple of times a year, you’ll still have paste left when you retire this motherboard. That can be a double-edged sword:
- Benefit: Value-hungry builders hoard it for multiple rigs without constantly rebuying.
- Problem: The tube oxidizes with air exposure. If you don’t seal it perfectly (and the lid’s threading isn’t the best), the outer rim dries out around the cap in months.
Store in a cool, dry spot, wipe off the nozzle, and screw the lid down finger-tight to squeeze a little grease into the threads—that barrier keeps air from creeping in.
Warning Signs & Gotchas
Don’t gloss over these or you’ll be scraping crust off a CPU cooler in a week:
- Loose Lid: That plastic cap can come undone in a toolbox. One jostle and you’ll have paste smeared across everything.
- Overapplication Hazard: More isn’t better. Too much paste means trapped heat instead of evacuated heat. A micrometer-thin layer is your friend.
- Viscosity Variance: If you hit a tub that feels like chewing gum, let it sit at room temp for a few minutes or soften gently—don’t microwave it.
- Mixed GPU Results: This paste shines on flat CPU IHS surfaces. On uneven GPU dies or IR-coated heatspreaders, you might see a bump in peak temps.
- Shelf Life Drama: If your tube is older than six months or kept in soaring attic heat, tend it like leftover paint—screen the first spread on scrap before trusting a critical component.
Who Should Tap This Tub?
Pick up G107 Silver Paste if you:
- Build and tear down multiple middle-weight PCs and want to maximize budget.
- Are comfortable manually fussing with spread technique and verifying contact.
- Don’t mind keeping an eye on temps over time, re-tweaking paste every quarter or so.
Look elsewhere if you:
- Run high-end overclocked gaming rigs or constant-load encoding boxes and demand rock-solid stability.
- Hate fiddling with viscosity or running test strips on spare hardware.
- Need a one-and-done solution that handles GPUs, CPUs and LEDs with zero second thoughts.
G107’s biggest selling point is value: generous quantity, honest conduction specs and broad compatibility. In the right hands it’ll cool a dozen builds without emptying a wallet. But expect to roll up your sleeves, master the spread, and babysit your temps if you lock it into a long haul. That’s par for the course on entry-level silvers—no snake oil, just a solid paste that rewards patience and smacks down the myth that every tube on the shelf is equally easy.
If you like fine-tuning hardware, don’t mind the calibration run-in and want to park a slab of silver paste in your garage for years of weekend tinkering, G107 delivers. If you’d rather slather once and never look back, upscale to a smoother, longer-lived compound. Your choice: save some cash now, or mitigate the headache later.