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3M Thermally Conductive Acrylic Interface Pad 5590H vs Fujipoly SARCON GR-Pm Silicone Putty Sheet: Comparison
3M Thermally Conductive Acrylic Interface vs Fujipoly SARCON GR-Pm Silicone Putty Sheet thermal conductivity compared
These two are close on paper, and thermal conductivity is the only measure that separates them at all: 3M Thermally Conductive Acrylic Interface 2.08 W/mK against Fujipoly SARCON GR-Pm Silicone Putty Sheet 4.5 W/mK. There is a split on reapplication interval as well, No reapplication needed; self-adhesive one-time application on the 3M Thermally Conductive Acrylic Interface versus Reusable, non-curing putty sheet; no scheduled reapplication on the Fujipoly SARCON GR-Pm Silicone Putty Sheet. Conductivity source is not the same on both, 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.fujipoly.eu/sarcon-products/sarcon-gr-pm on the Fujipoly SARCON GR-Pm Silicone Putty Sheet.
3M Thermally Conductive Acrylic Interface vs Fujipoly SARCON GR-Pm Silicone Putty Sheet: which one fits your build
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. It is the wrong buy for builds where silicone pads are acceptable and higher conductivity is wanted. The Fujipoly SARCON GR-Pm Silicone Putty Sheet suits uneven-height component gap filling and VRM and memory cooling, though it is not the pick for precision flat CPU/GPU die contact requiring maximum 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 Fujipoly SARCON GR-Pm Silicone Putty Sheet (6.7/10): A conformal silicone putty sheet suited to irregular gaps, from an established industrial thermal brand.
Frequently asked questions
Do the 3M Thermally Conductive Acrylic Interface and Fujipoly SARCON GR-Pm Silicone Putty Sheet differ on compound type?
Yes. Compound Type reads Acrylic Pad on the 3M Thermally Conductive Acrylic Interface versus Silicone-Based Pad on the Fujipoly SARCON GR-Pm Silicone Putty Sheet.
Is the Electrical Conductivity the same on the 3M Thermally Conductive Acrylic Interface and Fujipoly SARCON GR-Pm Silicone Putty Sheet?
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
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Fujipoly
Compound Type
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Acrylic Pad
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Silicone-Based Pad
Model
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- 5590H
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- SARCON GR-Pm
Thermal Conductivity
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- 2.08 W/mK (ASTM D5470)
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- 4.5 W/mK (Hot Disk)Best
Electrical Conductivity
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Insulating
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- 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
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Sheet form, cut to size, multiple thicknesses
Recommended Use
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Battery cooling, power electronics and HMI displays (general electronics gap filling)
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Mainstream CPU/GPU and uneven-surface gap filling
Reapplication Interval
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- No reapplication needed; self-adhesive one-time application
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Reusable, non-curing putty sheet; no scheduled reapplication
Safety Notes
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Non-conductive acrylic pad; no special handling precautions required
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Non-conductive silicone putty; 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
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- https://www.fujipoly.eu/sarcon-products/sarcon-gr-pm
Viscosity
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Firm, tacky acrylic polymer sheet
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- Highly conformal, non-curing silicone putty
Paste Segment
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Pad
- Fujipoly SARCON GR-Pm Silicone Putty Sheet
- 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 Fujipoly SARCON GR-Pm Silicone Putty Sheet if you want the higher thermal conductivity (4.5 W/mK (Hot Disk) vs 2.08 W/mK (ASTM D5470)).
Price comparison
| Retailer | 3M Thermally Conductive Acrylic Interface Pad 5590H | Fujipoly SARCON GR-Pm Silicone Putty Sheet |
|---|---|---|
| Amazon | View on Amazon | |
| Newark | View on Newark | |
| Fujipoly Europe | View on Fujipoly Europe |
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.
Fujipoly SARCON GR-Pm Silicone Putty Sheet
6.7 / 10 Expert Rating
A conformal silicone putty sheet suited to irregular gaps, from an established industrial thermal brand.




