Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Brand	Honeywell
Model Number	PTM7950SP
Material Type	Phase Change Material
Thermal Conductivity	8.5 W/m-K
Operating Temperature Range	-40°C to 125°C
Application Method	Pre-cut Sheet or Paste Application
Compatibility	CPUs, GPUs, Laptops, Desktops
Package Contents	1g Syringe and Applicator Tool
Shelf Life	24 Months from Manufacture Date
Country of Origin	USA

6 reviews

Anonymous

Mar 25, 2026

Rating: 5/5

Industrial grade quality

We use this in our rendering farm workstations. The consistency is perfect, and it handles the high heat cycles of professional GPUs without drying out. Highly recommended for heavy usage scenarios.

Anonymous

Mar 23, 2026

Rating: 4/5

Great performance, tricky application

The cooling results are fantastic, but applying the sheet version requires precision to avoid air gaps. The syringe version included in this kit was much easier to work with for my GPU repaste.

Anonymous

Mar 17, 2026

Rating: 5/5

Superior longevity

Unlike liquid metal or standard grease that pumps out over time, this PCM maintains its performance. I've had it on my desktop CPU for six months with zero degradation in cooling efficiency.

Anonymous

Mar 16, 2026

Rating: 4/5

Solid choice for enthusiasts

Very close to liquid metal performance without the electrical conductivity risk. It takes a few heat cycles to fully soften and reach peak performance, so don't judge it immediately after installation.

Anonymous

Mar 09, 2026

Rating: 5/5

Saved my overheating notebook

My old business laptop was throttling constantly. After cleaning the heatsink and applying PTM7950SP, it runs cool and quiet again. The phase change technology really works as advertised.

Anonymous

Mar 08, 2026

Rating: 5/5

Best thermal solution for laptops

I replaced the stock paste on my gaming laptop with this phase change material, and temperatures dropped by 8 degrees Celsius under load. It stays solid at room temperature which makes cleanup incredibly easy compared to traditional pastes.

5 FAQ

Q: Can this be used directly on a bare CPU die without a heatsink?

A: No, this thermal interface material must be sandwiched between the CPU/GPU die and a heatsink or cooler to function correctly. It requires pressure and heat to activate the phase change.

Q: Does this need to be reapplied every year?

A: No, one of the main benefits of phase change materials is their longevity. Under normal operating conditions, reapplication is typically not needed for several years.

Q: Is this product electrically conductive?

A: No, Honeywell PTM7950SP is non-electrically conductive, making it safe to use around sensitive motherboard components unlike liquid metal solutions.

Q: How do I apply this if I have an irregularly shaped GPU die?

A: For irregular dies, we recommend using the syringe form factor included in the package. Apply a thin, even layer across the surface rather than using the pre-cut sheets.

Q: What is the difference between PTM7950SP and PTM7958SP?

A: Both are high-performance phase change materials. The 7958SP generally offers slightly higher thermal conductivity and is often preferred for extreme overclocking, while 7950SP is the industry standard for general high-performance computing.

Explore your interests

Beikecom ESP32-S3 Core Board (N8R2/N16R8) with Bluetooth/WiFi Module, 44-Pin Xiaozhi Robot

$29.20

Pulse Heart Rate Sensor Compatible Bio-Simulation Sensor Header Pins No Soldering Required

$6.35

[Youxin Electronics] Soil Moisture Meter Detection Module, Soil Moisture Sensor for Intelligent Robot Cars

$2.09

N52 Super Strong Square Magnet, Neodymium Iron Boron Bar Magnet, Powerful Magnetic Blocks

$10.50

Instax Shutter Timer Selfie Artifact Fujifilm instax SQ Series Non-Destructive Installation

$58.00

STM32 Beginner Kit Minimum System Board Electronic Breadboard Same as University Science Association Models

$56.60

lalaci Round N52 Strong Magnet High Performance Powerful Small Magnet Diameter 1/2/3/4/5/6/8 Manufacturer NdFeB

$3.25

Car Vibrator/Piezoelectric Vibration Sensor Motorcycle Anti-Theft Alarm Vibration Sensor Module Ceramic Plate

$13.00

N52 Strong Magnet Small Round Mini Powerful Tiny Magnet High-Performance Neodymium Iron Boron Super Strong Magnet Steel 2-8mm

$5.50

Natural Cinnabar Rose Beads, Purple Gold Sand 'Blooming Prosperity' DIY Bracelet and Ring Accessories, Buddhist Prayer Bead Charms

$1.30

Strong Magnet with Hole Square Magnet Block High-Performance Neodymium Iron Boron Countersunk Hole Magnet Steel Magnet Stone Patch

$0.50

New Stainless Steel Solder Wire Lighter Usable High Purity Tin Wire Universal Welding Tool Soldering Wire

$2.90

New Industrial Iron Picker Iron Sucker Magnetic Quick Magnetic Rod G Parts Manual Magnet Nail Sweeper Simple

$386.24

Waveshare MCP23017 I/O Expansion Module Compatible with Raspberry Pi/Micro:bit/STM32/Arduino

$34.00

Voice Playback Module MP3 Prompter Trigger Once Play Once Announcer Compatible with Arduino

$29.00

M03 M04 Water Level Detection Module Sensor, Green Non-Contact Liquid Level Touch Switch

$1.15

MQ-8 Hydrogen Gas Sensor Module

$7.73

MAX30100/MAX30102 Blood Oxygen Heart Rate Wrist Pulse Detection Monitoring Biosensor Module

$5.39

300 SMT Component Soldering Kit High-Intensity Practice Board PCB Skills Competition TJ-56-273

$42.40

Kunlun Coast Industrial Wide-Temperature Transmitter Split Type Temperature and Humidity Sensor JWSK-6

$100.00

Digital + Analog LM386 Sound Detection Sensor Voice Control Switch Audio Waveform Microphone Module

$20.00

NVIDIA JETSON NANO B01 Development Board 4GB Core ORIN Kit AI Artificial Intelligence ROS Motherboard

$899.00

Wildfire Shengteng Mini FPGA Development Board Xilinx Artix-7 XC7A35T/100T/200T A7 Board

$665.00

EchoEar MeowMate PCB Development Board Kit Components Espressif Xiaozhi AI Volcengine Open Source Replica

$0.50

Strong Magnetic Rod with Lifting Ring Industrial Magnetic Force 304 Stainless Steel Stable Mining Iron Removal Magnet

$202.00

Thickened Strong Magnetic Rubber Soft Magnetic Sheet A4 Advertising Magnetic Car Sticker, Flexible Magnet with Adhesive Backing, Magnetic Paper

$17.50

[Corrosion-Resistant] DFRobot Capacitive Soil Moisture Sensor Module Dry/Wet Detection

$35.00

(Loose Parts) Photo-Sensitive Light-Controlled Audio-Visual Alarm Kit with Buzzer and Double-Sided PCB Board for Teaching, Training, and Soldering Practice

$6.80

FarSight WS63 NearLink Development Board Hi3863 HarmonyOS OpenHarmony IoT WiFi Bluetooth BLE

$199.00

Raspberry Pi 4 Case Aluminum Alloy Metal 4B+ Case + Raspberry Pi 4 Chassis Heat Dissipation Box Accessories

$21.90

Anlixin Solder Paste Solder Cream SMT Patch Mobile Phone Repair Reballing LED Welding High Medium Low Temperature Lead-Free Solder Mud

$25.80

Strong Magnetic Suction Patches, Round Neodymium Magnets with Holes, High-Strength Fixed Suction Force

$2.55

Desktop Soldering Fixture for Mobile Phone Repair - Electronic Holding Stand with Soldering Iron Support and Auxiliary Tools

$11.64

GY-530 VL53L0X Laser Distance Sensor ToF Ranging Time-of-Flight Sensor Module

$12.31

SC7A20H 3-Axis Acceleration Tilt Angle Sensor Module, Inclination and Level Detection with Serial Output

$11.35

N52 Strong Magnet Iron Attractor Round Powerful Magnet Magnetic Stone Sheet Neodymium Iron Boron High-Strength Magnet Rare Earth Magnetic Steel Permanent Magnet

$7.07