Looking Beyond the PATIKIL 15x15x0.4mm Copper Heatsink Shims? 6 Alternatives Worth a Look

How each alternative compares

PATIKIL 15x15x0.3mm Copper Heatsink Shims

The PATIKIL 15x15x0.3mm Copper Heatsink Shims reduce the thickness to 0.3mm from the original 0.4mm. This 0.1mm difference matters when you need tighter clearance between a chip and a heatsink. Both options use pure copper for identical thermal conductivity. You should choose this version if your gap is slightly smaller than 0.4mm. The surface finish and material quality remain consistent with the original. It is a precise alternative for builders who measure their thermal gaps with high accuracy. You still need to apply your own adhesive for installation. This option is ideal for compact GPU or CPU setups where every millimeter counts.

JIUWU 15x15x0.8mm Copper Heatsink Shims

The JIUWU 15x15x0.8mm Copper Heatsink Shims double the thickness of the original PATIKIL shims. At 0.8mm, these pads handle larger gaps between components and cooling modules. The copper material provides the same reliable heat dissipation as the original. You should pick this alternative if your hardware has a wider clearance that the 0.4mm shim cannot fill. The larger height adjustment makes it suitable for laptop cooling where space varies. The dimensions remain 15mm by 15mm, ensuring compatibility with standard chip sizes. This thicker option prevents overheating by bridging wider gaps effectively. It is a practical choice for users needing substantial height adjustment without changing the footprint.

Uxcell 20mm Pure Copper Thermal Shim

The Uxcell 20mm Pure Copper Thermal Shim increases both the surface area and thickness compared to the original. It measures 20x20mm with a 1.0mm height, offering more coverage and a thicker profile. The pure copper construction ensures high thermal conductivity, similar to the PATIKIL shims. You should select this option if your components require a larger contact area or a thicker spacer. The 1.0mm height is ideal for laptops and GPUs needing robust thermal gap filling. This shim provides better heat spreading due to its larger size. It is best for users who prioritize conductivity and coverage over a minimal footprint. The increased dimensions make it suitable for broader heat dissipation tasks.

Easycargo 15x15x0.5mm Copper Shims 20-Pack

The Easycargo 15x15x0.5mm Copper Shims feature pre-applied 3M thermal tape, which the original PATIKIL shims lack. This adhesive backing simplifies installation for technicians who want faster repairs. The thickness is 0.5mm, slightly thicker than the original 0.4mm. Both options use copper for effective heat transfer. You should choose this version if you value convenience and do not want to handle separate adhesives. The 20-pack quantity offers more units for multiple repairs. The copper tone and size match standard component requirements. This option is practical for quick laptop GPU or CPU upgrades. The pre-applied tape ensures consistent placement without additional preparation steps.

Easycargo 100-Piece 15mm Copper Shim Kit

The Easycargo 100-Piece 15mm Copper Shim Kit provides a wide range of thicknesses, unlike the single 0.4mm option. This variety allows you to customize cooling for M.2 SSDs, PS5 components, or VRMs. All shims are made of copper, ensuring reliable thermal performance. You should pick this kit if you need multiple sizes for different gaps in one build. The 15mm by 15mm footprint matches the original PATIKIL shims. Having 100 pieces means you have spares for future repairs. This option is ideal for builders who need flexibility in gap filling. It eliminates the need to buy separate packs for different thicknesses. The kit covers various applications, from laptops to desktop components.

Bopaodao 120mm Flat Copper Heat Pipe

The Bopaodao 120mm Flat Copper Heat Pipe is a single unit of pure copper, not a pre-sized shim. It measures 120mm in length with a 5.5mm width and 2mm thickness. You can bend or flatten this pipe for custom cooling tasks. This flexibility differs from the fixed dimensions of the PATIKIL shims. You should choose this option if you need to create a custom-sized thermal spreader. The pure copper material offers high conductivity for passive cooling. It is suitable for GPU, laptop, or RAM cooling where standard shims do not fit. This product requires more effort to shape but provides greater adaptability. It is best for builders who prioritize shape flexibility over pre-sized convenience.

Quick picks

Our 7 picks

1 Best overall

PATIKIL 15x15x0.4mm Copper Heatsink Shims

Best for: filling 0.4mm gaps on GPUs and CPUs

Material

Copper

Compatible Device

Laptop, Desktop Computer, GPU, CPU

Dimensions

15x15x0.4mm

Mounting Type

Adhesive

View on Amazon: PATIKIL 15x15x0.4mm Copper Heatsink Shims Affiliate link

This is a pack of six copper shims measuring 15x15x0.4mm. The material offers strong thermal conductivity to fill gaps between chips and cooling modules. You get a smooth surface with no burrs for reliable contact. These shims help reduce overheating risks for GPUs, CPUs, and laptop components. They are designed for desktop and laptop use where extra spacing is needed for effective heat dissipation.

Pros

• Made of pure copper for good thermal conductivity
• Precise 15x15x0.4mm dimensions for specific gap filling
• Smooth surface with no burrs on the edges
• Pack includes 6 pieces for multiple installations

Cons

• Adhesive is not included in the package
• Only available in 0.4mm thickness in this specific listing
• Requires manual cleaning and application with separate adhesive

Good fit if

• You need to fill a 0.4mm gap between a chip and a heatsink
• You want copper material for better heat transfer than aluminum
• You are cooling a GPU, CPU, or laptop chipset directly

Skip if

• You need shims thicker than 0.4mm for your hardware
• You want pre-applied adhesive for easier installation
• You require a larger 20x20mm surface area for your component

Verdict: PATIKIL 15x15x0.4mm Copper Heatsink Shim fits users who need precise copper spacers for direct chip cooling. You should buy this if your hardware has a 0.4mm gap and you are prepared to apply your own adhesive.

2 Also great

PATIKIL 15x15x0.3mm Copper Heatsink Shims

Best for: Thin copper thermal gap filling

Material

Copper

Compatible Device

Laptop, Desktop Computer, GPU, CPU

Dimensions

15x15x0.3mm

Mounting Type

Adhesive

View on Amazon: PATIKIL 15x15x0.3mm Copper Heatsink Shims Affiliate link

This pack of 12 copper shims measures 15x15x0.3mm. The pure copper material provides reliable thermal conductivity to fill gaps between components and heatsinks. You get smooth edges with no burrs for safe handling. These shims help reduce overheating risks for GPUs, CPUs, and chipsets. The thin 0.3mm profile suits applications needing minimal height adjustment while improving heat transfer efficiency.

Pros

• Made of pure copper for high thermal conductivity
• Smooth surface with no burrs on edges
• Pack includes 12 shims for multiple uses
• Thin 0.3mm thickness for precise gap filling

Cons

• Thinner than the 0.4mm alternative on this list
• No adhesive pre-applied to the shims
• Limited to 15x15mm square size only

Good fit if

• You need a thin shim to raise a heatsink slightly
• You want pure copper for better heat conduction
• You are cooling GPUs or chipsets with limited space

Skip if

• You require pre-applied adhesive for easier installation
• You need thicker shims for larger gaps
• You prefer rectangular or non-square shapes

Verdict: PATIKIL 15x15x0.3mm Copper Heatsink Shims fits builders who prioritize pure copper conductivity and a thin profile for precise thermal gap filling in compact GPU or CPU setups.

3 Best budget

JIUWU 15x15x0.8mm Copper Heatsink Shims

Best for: Laptop cooling with larger clearance gaps

Material

High Purity Copper

Compatible Device

Laptop GPU and CPU

Dimensions

15mm x 15mm x 0.8mm

Length

0.59 inches

Width

0.59 inches

Weight

0.32 ounces

View on Amazon: JIUWU 15x15x0.8mm Copper Heatsink Shims Affiliate link

This pack of 20 copper shims measures 15mm by 15mm by 0.8mm. The thicker 0.8mm profile offers more adjustment range than the 0.3mm or 0.4mm pads found in other kits. Made from high purity copper, these pads support efficient heat transfer for laptop GPUs and CPUs. The material ensures reliable thermal conductivity for your cooling setup.

Pros

• 0.8mm thickness provides significant height adjustment
• High purity copper for effective heat dissipation
• Includes 20 pads per pack
• Compatible with laptop GPU and CPU heatsinks

Cons

• 0.8mm thickness may exceed clearance for low-profile coolers
• No pre-applied adhesive backing included
• Limited to 15mm x 15mm size only

Good fit if

• You need thicker shims for larger gaps
• You prefer high purity copper for thermal performance
• You are upgrading laptop GPU or CPU cooling

Skip if

• You require thin 0.3mm or 0.4mm shims
• You need pre-applied adhesive for quick installation
• You require multiple shim sizes in one kit

Verdict: JIUWU 15x15x0.8mm Copper Heatsink Shims fits users needing substantial height adjustment for laptop cooling. The thicker copper pads handle larger gaps better than standard thin shims.

4 Also great

Uxcell 20mm Pure Copper Thermal Shim

Best for: Laptop and GPU gap filling with pure copper

Material

Pure Copper

Compatible Device

PC, Laptop CPU, GPU

Dimensions

0.79 x 0.79 x 0.04 inches

Mounting Type

Thermal Shim Pad

Length

0.79 inches

Width

0.79 inches

View on Amazon: Uxcell 20mm Pure Copper Thermal Shim Affiliate link

This Uxcell copper shim measures 20 by 20 by 1.0 mm. It is made from pure copper for high thermal conductivity. The package contains five pads. These pads act as gap fillers for laptops and GPUs. The compact size fits small spaces. You get ample cooling for multiple devices. This option suits users needing thicker spacers than standard 0.4 mm shims.

Pros

• Pure copper material for efficient heat dissipation
• 20x20x1.0mm dimensions for larger gap filling
• Includes 5 pads per package
• Lightweight at 19g net weight

Cons

• Thicker 1.0mm profile limits use in tight spaces
• No adhesive backing mentioned in specifications
• Only 5 pads included in the package

Good fit if

• You need a 1.0mm gap filler for GPU or laptop cooling
• You prefer pure copper for superior thermal conductivity
• You are cooling multiple devices and need spare pads

Skip if

• You require pre-applied adhesive for easy installation
• You need very thin shims under 0.5mm
• You are looking for a 15x15mm size

Verdict: Uxcell 20x20x1.0mm Pure Copper Shim provides robust thermal performance for laptops and GPUs requiring thicker spacers. It fits users who prioritize pure copper conductivity over thin profiles.

5 Best thermal tape

Easycargo 15x15x0.5mm Copper Shims 20-Pack

Best for: Quick laptop GPU and CPU thermal upgrades

Material

Copper

Cooling Method

passive

Compatible Device

Laptop GPU CPU IC Chips VGA RAM

Dimensions

15x15x0.5mm

Mounting Type

Pre applied adhesive tape backing

Features

Thermal Tape

View on Amazon: Easycargo 15x15x0.5mm Copper Shims 20-Pack Affiliate link

This pack includes 20 copper shims measuring 15x15x0.5mm. Each shim has 3M 8810 thermal conductive adhesive tape pre-applied. You get a ready-to-use solution for passive cooling on laptop GPUs, CPUs, and VRAM chips. The pure copper material helps transfer heat efficiently. The adhesive backing simplifies installation by eliminating the need for separate thermal pads or glue.

Pros

• Pure copper material for heat transfer
• Pre-applied 3M 8810 thermal adhesive tape
• Includes 20 pieces per pack
• Dimensions of 15x15x0.5mm fit standard gaps

Cons

• Thicker 0.5mm profile may not fit tight spaces
• Adhesive backing limits repositioning during installation
• Only compatible with passive cooling setups

Good fit if

• You need pre-adhesive shims for quick laptop repairs
• You are upgrading VRAM or chipset cooling
• You prefer a 0.5mm shim thickness

Skip if

• You require ultra-thin 0.3mm shims
• You want to reuse shims multiple times
• You need active cooling components

Verdict: Easycargo 15x15x0.5mm Copper Shims with 3M Tape is a convenient option for technicians who want pre-applied adhesive for faster laptop GPU or CPU repairs.

6 Best ps5

Easycargo 100-Piece 15mm Copper Shim Kit

Best for: filling thermal gaps for M.2 SSDs

Material

Copper C1100

Compatible Device

PC, Laptop GPU, CPU, M.2 NVMe SSD

Length

0.6 inches

Width

0.6 inches

View on Amazon: Easycargo 100-Piece 15mm Copper Shim Kit Affiliate link

This kit provides 100 copper pad shims in 12 sizes, all measuring 15mm x 15mm. It includes sheets ranging from 0.1mm to 2mm thick, made from Copper C1100 with 401W/mK thermal conductivity. You can choose between versions with or without pre-applied 3M 8810 adhesive. It suits you if you need to fill gaps around M.2 NVMe SSDs, laptop GPUs, or VRAM chips on a motherboard.

Pros

• 100 pieces included for extensive use
• 12 different thickness options from 0.1mm to 2mm
• High thermal conductivity of 401W/mK
• Available with pre-applied 3M 8810 glue

Cons

• Requires manual cutting for non-standard sizes
• No adhesive included in the base option
• Limited to 15mm x 15mm dimensions

Good fit if

• You need to adjust gap height for M.2 SSDs
• You are cooling laptop GPU or VRAM components
• You require multiple thicknesses in one purchase

Skip if

• You need shims larger than 15mm x 15mm
• You prefer aluminum over copper material
• You need pre-cut shapes other than squares

Verdict: Easycargo 100pc Copper Shim Kit offers a wide range of thicknesses for precise thermal gap filling. It fits builders who need to customize cooling for M.2 SSDs or laptop components without buying separate single-size packs.

7 Best premium

Bopaodao 120mm Flat Copper Heat Pipe

Best for: custom bending and flat pipe cooling

Material

99% pure copper

Cooling Method

Passive

Compatible Device

Laptop, CPU, GPU, mobile phone

Dimensions

2mm x 5.5mm x 120mm

View on Amazon: Bopaodao 120mm Flat Copper Heat Pipe Affiliate link

This passive copper heat pipe measures 120mm long, 5.5mm wide, and 2mm thick. It uses 99% pure copper to disperse heat from CPUs, GPUs, and laptops. You can bend or flatten it to fit specific cooling needs. It is a simple, durable component for DIY thermal management. This option works well when you need a flexible, high-conductivity material to bridge gaps or extend heat dissipation paths in compact builds.

Pros

• Constructed from 99% pure copper for high thermal conductivity
• Dimensions of 120mm length, 5.5mm width, and 2mm thickness
• Fully passive cooling method requires no power or fans
• Material can be bent or flattened to custom shapes

Cons

• Sold as a single piece rather than a multi-pack
• 2mm thickness is larger than the 0.4mm shims on this list
• Requires manual bending and installation by the user

Good fit if

• You need to extend a heat dissipation path in a laptop
• You are building a custom cooling solution for a GPU
• You require a material that can be shaped to fit tight spaces

Skip if

• You are looking for pre-cut shim pads for standard gaps
• You want a passive solution that requires zero assembly
• You need a multi-pack of small thermal interface shims

Verdict: Bopaodao 120mm Pure Copper Flat Heat Pipe is a versatile, single-unit copper pipe for users who need to bend or flatten material for custom cooling tasks. It suits builders who prioritize high conductivity and shape flexibility over pre-sized convenience.

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Frequently asked questions

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