{"product_id":"ptm7950-phase-change-thermal-pad-8-5-wmk-cpu-gpu-cooling","title":"PTM7950 Phase Change Thermal Pad 8.5 W\/mK – CPU \u0026 GPU","description":"\n\u003ch2\u003ePTM7950 Phase Change Thermal Pad – Ultimate CPU \u0026amp; GPU Cooling Solution\u003c\/h2\u003e\n\u003cp\u003eKeep your laptop or desktop running cool and at peak performance with this high-performance \u003cstrong\u003ePTM7950 Phase Change Thermal Pad\u003c\/strong\u003e. Engineered with ultra-high thermal conductivity of \u003cstrong\u003e8.5 W\/mK\u003c\/strong\u003e, this 0.25mm silicone pad is designed as a direct replacement or upgrade for CPU and GPU thermal interface materials, dramatically reducing heat buildup and protecting your components.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the PTM7950 Thermal Pad?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExceptional Thermal Conductivity:\u003c\/strong\u003e 8.5 W\/mK rating and ultra-low thermal impedance of just 0.04 °C·cm²\/W ensure rapid, efficient heat transfer from your CPU or GPU to the heat sink.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhase Change Technology:\u003c\/strong\u003e Transitions from solid to semi-liquid state at temperatures below 45°C, conforming perfectly to micro-surface irregularities for virtually zero contact resistance — far superior to traditional thermal paste.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProven Reliability:\u003c\/strong\u003e Passes rigorous testing including 1,000 hours at 150°C baking and 1,000 thermal cycles (T\/C-B), making it ideal for high-performance integrated circuits and demanding workloads.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Thin Profile:\u003c\/strong\u003e At just 0.25mm thick, it maintains an extremely thin bond line (under 0.038mm under optimal clamping pressure), minimizing thermal resistance between chip and cooler.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy to Apply:\u003c\/strong\u003e Comes with easy-tear adhesive aids for clean, frustration-free installation. No mess, no pump-out, no re-application needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Sizing:\u003c\/strong\u003e Available in five sizes — 31×40mm, 40×40mm, 40×80mm, 80×80mm, and 80×160mm — to fit a wide range of CPUs, GPUs, graphics cards, laptop chips, and custom heat dissipation modules.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Silicone Material:\u003c\/strong\u003e High-quality silicone construction is soft, flexible, and features a smooth, precision-finished surface for maximum contact coverage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse: collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e8.5 W\/m·K\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eThermal Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e0.04 °C·cm²\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e0.25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePhase Change Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eWithin 45°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDensity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e2.8 g\/cm³\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eHigh-Quality Silicone (Phase Change)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eGray\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eAvailable Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e31×40mm \/ 40×40mm \/ 40×80mm \/ 80×80mm \/ 80×160mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e10g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eStorage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eRefrigerated storage recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e1 x PTM7950 Thermal Pad + 4 x Easy-Tear Stickers\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatible With\u003c\/h3\u003e\n\u003cp\u003eDesigned for use with CPUs, GPUs, graphics cards, laptop processors, desktop chips, power supply modules, computer hosts, and any custom heat dissipation module that requires reliable, high-performance thermal interface material.\u003c\/p\u003e\n\n\u003ch3\u003eHow to Apply Your PTM7950 Thermal Pad\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClean the surfaces:\u003c\/strong\u003e Thoroughly clean the chip surface and the heat sink contact surface using an alcohol wipe to remove all old thermal material and debris.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCut to size:\u003c\/strong\u003e Trim the pad to match your chip size exactly. When applying to the chip surface, cut the pad to the same size or slightly smaller than the chip with clean, solid edges. When applying to the heat sink base, cut the pad slightly larger than the chip for easier alignment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePeel and apply (first side):\u003c\/strong\u003e Tear off one side of the release film and adhere the pad to either the chip surface or heat sink base. If the pad is too warm and soft, refrigerate briefly for 5–10 minutes to firm it up before peeling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePress firmly:\u003c\/strong\u003e Apply even thumb pressure across the entire pad surface to ensure full adhesion and eliminate air gaps.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePeel second side:\u003c\/strong\u003e Remove the remaining release film. Use the included easy-tear adhesive aids, starting from a corner, for a clean peel.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall your cooler:\u003c\/strong\u003e Mount and fasten the heat sink immediately, then power on your system. The pad will activate during normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠️ Important Note:\u003c\/strong\u003e This is a phase change material. Minor edge deformation may occur during air transport due to cabin pressure and temperature changes — this does not affect performance. Please do not purchase if this is not acceptable.\u003c\/p\u003e\n\n\u003ch3\u003eLearn More About Thermal Management\u003c\/h3\u003e\n\u003cp\u003eFor more information on electronics thermal management best practices, visit the U.S. Department of Energy – Thermal Management Resources. You can also reference NIST Thermal Metrology standards for technical guidance on thermal conductivity measurement.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/100w-dual-port-car-charger-starlink-mini-fast-charging\"\u003e100W Dual-Port Car Charger – Fast Charging\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/140w-usb-c-fast-charging-adapter-auto-power-off-overcharge-protection\"\u003e140W USB-C Fast Charger with Auto Power-Off Overcharge Protection\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/140w-auto-eject-usb-c-charging-cable-anti-overcharge-battery-guard\"\u003e140W Auto-Eject USB-C Cable – Anti-Overcharge Battery Guard\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is a phase change thermal pad and how does the PTM7950 work?\u003c\/h4\u003e\n\u003cp\u003eA: A phase change thermal pad is a thermal interface material (TIM) that transitions from a solid to a semi-liquid state at a set temperature — in this case, below 45°C. As the CPU or GPU heats up during operation, the PTM7950 pad softens and flows into microscopic surface irregularities on both the chip and heat sink, maximizing contact area and reducing thermal resistance. This results in significantly better heat transfer than traditional dry pads or even some thermal pastes.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the PTM7950 thermal pad reusable or a one-time application?\u003c\/h4\u003e\n\u003cp\u003eA: The PTM7950 is generally designed as a single-use, semi-permanent application. Once installed and cycled through operating temperatures, it conforms to the mating surfaces. It can technically be removed and reapplied if necessary (e.g., during cooler maintenance), but best performance is achieved with a fresh pad on clean surfaces for each major installation. Always clean both surfaces with isopropyl alcohol before reapplying.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Which size PTM7950 thermal pad should I choose for my laptop or desktop CPU?\u003c\/h4\u003e\n\u003cp\u003eA: For most laptop CPUs and smaller mobile GPUs, the 31×40mm or 40×40mm sizes are ideal. For desktop CPUs and larger GPU dies, the 40×80mm or 80×80mm options offer full coverage. The 80×160mm sheet is best suited for larger heat spreader surfaces or custom cooling setups. Always measure your chip die size before ordering and cut the pad to match or slightly smaller than the chip for optimal results.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does the PTM7950 compare to regular thermal paste?\u003c\/h4\u003e\n\u003cp\u003eA: The PTM7950 offers several advantages over traditional thermal paste. It delivers a more consistent, uniform bond line thickness (as thin as 0.038mm), has no risk of pump-out over time, leaves no residue, and is far cleaner to handle. Its 8.5 W\/mK thermal conductivity and 0.04 °C·cm²\/W thermal impedance put it among the top-performing thermal interface materials available for consumer electronics.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is a phase change thermal pad and how does the PTM7950 work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A phase change thermal pad is a thermal interface material (TIM) that transitions from a solid to a semi-liquid state at a set temperature — in this case, below 45°C. As the CPU or GPU heats up during operation, the PTM7950 pad softens and flows into microscopic surface irregularities on both the chip and heat sink, maximizing contact area and reducing thermal resistance. This results in significantly better heat transfer than traditional dry pads or even some thermal pastes.\"}}, {\"@type\": \"Question\", \"name\": \"Is the PTM7950 thermal pad reusable or a one-time application?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The PTM7950 is generally designed as a single-use, semi-permanent application. Once installed and cycled through operating temperatures, it conforms to the mating surfaces. It can technically be removed and reapplied if necessary (e.g., during cooler maintenance), but best performance is achieved with a fresh pad on clean surfaces for each major installation. Always clean both surfaces with isopropyl alcohol before reapplying.\"}}, {\"@type\": \"Question\", \"name\": \"Which size PTM7950 thermal pad should I choose for my laptop or desktop CPU?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"For most laptop CPUs and smaller mobile GPUs, the 31×40mm or 40×40mm sizes are ideal. For desktop CPUs and larger GPU dies, the 40×80mm or 80×80mm options offer full coverage. The 80×160mm sheet is best suited for larger heat spreader surfaces or custom cooling setups. Always measure your chip die size before ordering and cut the pad to match or slightly smaller than the chip for optimal results.\"}}, {\"@type\": \"Question\", \"name\": \"How does the PTM7950 compare to regular thermal paste?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The PTM7950 offers several advantages over traditional thermal paste. It delivers a more consistent, uniform bond line thickness (as thin as 0.038mm), has no risk of pump-out over time, leaves no residue, and is far cleaner to handle. Its 8.5 W\/mK thermal conductivity and 0.04 °C·cm²\/W thermal impedance put it among the top-performing thermal interface materials available for consumer electronics.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"80x160mm \/ france","offer_id":47710843306089,"sku":"14:200004891#80x160mm;200007763:201336342","price":68.47,"currency_code":"USD","in_stock":true},{"title":"80x160mm \/ United States","offer_id":47710843338857,"sku":"14:200004891#80x160mm;200007763:201336106","price":73.06,"currency_code":"USD","in_stock":true},{"title":"80x160mm \/ spain","offer_id":47710843371625,"sku":"14:200004891#80x160mm;200007763:201336104","price":71.75,"currency_code":"USD","in_stock":true},{"title":"80x160mm \/ Australia","offer_id":47710843404393,"sku":"14:200004891#80x160mm;200007763:201336099","price":65.65,"currency_code":"USD","in_stock":true},{"title":"80x80mm \/ france","offer_id":47710843437161,"sku":"14:200004890#80x80mm;200007763:201336342","price":46.96,"currency_code":"USD","in_stock":true},{"title":"80x80mm \/ United States","offer_id":47710843469929,"sku":"14:200004890#80x80mm;200007763:201336106","price":51.34,"currency_code":"USD","in_stock":true},{"title":"80x80mm \/ spain","offer_id":47710843502697,"sku":"14:200004890#80x80mm;200007763:201336104","price":50.24,"currency_code":"USD","in_stock":true},{"title":"80x80mm \/ Australia","offer_id":47710843535465,"sku":"14:200004890#80x80mm;200007763:201336099","price":44.29,"currency_code":"USD","in_stock":true},{"title":"40x80mm \/ france","offer_id":47710843568233,"sku":"14:200004889#40x80mm;200007763:201336342","price":32.48,"currency_code":"USD","in_stock":true},{"title":"40x80mm \/ United States","offer_id":47710843601001,"sku":"14:200004889#40x80mm;200007763:201336106","price":36.28,"currency_code":"USD","in_stock":true},{"title":"40x80mm \/ spain","offer_id":47710843633769,"sku":"14:200004889#40x80mm;200007763:201336104","price":35.9,"currency_code":"USD","in_stock":true},{"title":"40x80mm \/ Australia","offer_id":47710843666537,"sku":"14:200004889#40x80mm;200007763:201336099","price":30.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Sa47c1cbd55974b0995eaab404b24b1f7T.webp?v=1782060872","url":"https:\/\/oasis-select.com\/products\/ptm7950-phase-change-thermal-pad-8-5-wmk-cpu-gpu-cooling","provider":"Oasis Select","version":"1.0","type":"link"}