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3M Thermally Conductive Acrylic Interface Pad 5590H vs Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad: Comparison
What is the difference between 3M Thermally Conductive Acrylic Interface and Laird (Laird Performance Materials) Laird?
There is no decisive spec gap here. Thermal conductivity splits them by a margin most buyers will never feel, 3M Thermally Conductive Acrylic Interface 2.08 W/mK against Laird (Laird Performance Materials) Laird 3 W/mK. They differ on reapplication interval too, No reapplication needed; self-adhesive one-time application on the 3M Thermally Conductive Acrylic Interface versus No reapplication needed; reusable silicone elastomer gap filler on the Laird (Laird Performance Materials) Laird. There is a split on conductivity source as well, https://multimedia.3m.com/mws/media/920112O/3m-thermally-conductive-acrylic-interface-pad-5590h-technical-data-sheet.pdf on the 3M Thermally Conductive Acrylic Interface versus https://www.laird.com/products/thermal-interface-materials/gap-fillers/tflex-hr600 on the Laird (Laird Performance Materials) Laird.
Which should you buy, 3M Thermally Conductive Acrylic Interface or Laird (Laird Performance Materials) Laird?
The 3M Thermally Conductive Acrylic Interface is the one to take for silicone-sensitive assemblies near optics, displays or connectors and power electronics and battery gap filling, though it is the wrong buy for high-end GPU memory or VRM cooling. Avoid it for builds where silicone pads are acceptable and higher conductivity is wanted. The Laird (Laird Performance Materials) Laird suits M.2 SSD heatsink contact and laptop GPU/VRAM cooling, though it is not built for high-power desktop CPU/GPU dies needing >3 W/mK. Our rating of the 3M Thermally Conductive Acrylic Interface (6.6/10): an industrial acrylic interface pad from an established materials manufacturer, aimed at OEM and repair use rather than enthusiast builds. Our rating of the Laird (Laird Performance Materials) Laird (6.2/10): an industrial-grade gap filler pad from an established materials brand, cuttable to size for M.2 and laptop use.
Frequently asked questions
Do the 3M Thermally Conductive Acrylic Interface and Laird (Laird Performance Materials) Laird differ on compound type?
Yes. Compound Type reads Acrylic Pad on the 3M Thermally Conductive Acrylic Interface versus Silicone-Based Pad on the Laird (Laird Performance Materials) Laird.
Is the Electrical Conductivity the same on the 3M Thermally Conductive Acrylic Interface and Laird (Laird Performance Materials) Laird?
It is. Both are listed at Insulating, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- 3M
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Laird
Compound Type
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Acrylic Pad
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Silicone-Based Pad
Model
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- 5590H
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Tflex HR600
Thermal Conductivity
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- 2.08 W/mK (ASTM D5470)
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- 3 W/mK (ASTM D5470)Best
Electrical Conductivity
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Insulating
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Insulating
Package Size
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Sheets and die-cut shapes, 0.5/1.0/1.2/1.5/2.0mm thick
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- 229 x 229mm sheet, 0.5mm-3.0mm thickness options; also sold pre-cut for M.2 SSD/laptop use
Recommended Use
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Battery cooling, power electronics and HMI displays (general electronics gap filling)
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Laptop-Thin-GPU, Mainstream CPU/GPU, M.2 SSD cooling
Reapplication Interval
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- No reapplication needed; self-adhesive one-time application
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- No reapplication needed; reusable silicone elastomer gap filler
Safety Notes
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Non-conductive acrylic pad; no special handling precautions required
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Non-conductive silicone elastomer; no special handling precautions required
Conductivity Source
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- https://multimedia.3m.com/mws/media/920112O/3m-thermally-conductive-acrylic-interface-pad-5590h-technical-data-sheet.pdf
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- https://www.laird.com/products/thermal-interface-materials/gap-fillers/tflex-hr600
Viscosity
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Firm, tacky acrylic polymer sheet
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Soft, compressible silicone elastomer sheet
Paste Segment
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Pad
- Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
- Pad
Which one should you pick?
Choose 3M Thermally Conductive Acrylic Interface Pad 5590H if you already have it on hand or find it at a lower price.
Choose Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad if you want the higher thermal conductivity (3 W/mK (ASTM D5470) vs 2.08 W/mK (ASTM D5470)).
Price comparison
| Retailer | 3M Thermally Conductive Acrylic Interface Pad 5590H | Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad |
|---|---|---|
| Amazon | View on Amazon | |
| Newark | View on Newark | |
| Laird / Laird Performance Materials | View on Laird / Laird Performance Materials | |
| Farnell | View on Farnell |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
3M Thermally Conductive Acrylic Interface Pad 5590H
6.6 / 10 Expert Rating
An industrial acrylic interface pad from an established materials manufacturer, aimed at OEM and repair use rather than enthusiast builds.
Laird (Laird Performance Materials) Laird Tflex HR600 Series Thermal Gap Filler Pad
6.2 / 10 Expert Rating
An industrial-grade gap filler pad from an established materials brand, cuttable to size for M.2 and laptop use.