SARCON® PG25A

Thermally Conductive and No Electricity Conductive Silicone Rubber Sheet

Features

Sarcon® PG25A Series is a highly conformable and high thermal conducting gel material in a versatile sheet form that easily fits and adheres to most all shapes and sizes of components, including protrusions and recessed areas.
1) Low thermal resistance
2) Soft, low stress on component
3) Low content of Low Molecular Siloxane

Construction
Series Construction
Sarcon® PG25A-00 Silicone compound with double sticky surfaces
Typical properties
Property Unit Sarcon® PG25A Test method Specimen*1
Color - Gray Visual -
Specific gravity 2.62 ASTM D 792 A
Hardness Shore OO 26 ASTM D2240 B
Thermal conductivity W/m・K 2.5 Hot Disk C
Volume resistivity MΩ・m 2.4×105 ASTM D 257 D
Dielectric strength kV/mm 18 ASTM D 149 D
Dielectric Constant - 50Hz 7.2 ASTM D150 -
1kHz 6.7
1MHz 6.3
Dissipation Factor - 50Hz 0.059 ASTM D150 -
1kHz 0.031
1MHz 0.072
Elongation % 242 ASTM D 412 A
Tensile strength MPa 0.1 ASTM D 412 A
Tear strength N/mm 0.54 ASTM D 624 A
Contents of Low- Molecular Siloxane wt%
(D3~D20 Total)
0.016 Gas Chromatographic Analysis by the extraction (Aceton) -
Flammability - V-0 Equivalent UL 94 -
*1 Specimen A: 2.0mmT
Specimen B: 30mmW x 50mmL x 12mmT (3mmT x 4pcs)
Specimen C: 50mmW × 50mmL × 9mmT (3mmT x 3pcs)
Specimen D: 120mmW × 120mmL × 1.0mmT
Compression Force
Compression
Ratio
1.0mmT 1.5mmT 2.0mmT 2.5mmT 3.0mmT 3.5mmT 4.0mmT 4.5mmT 5.0mmT
10% 21 13 9 8 7 6 5 4 4
20% 35 21 18 14 13 12 11 9 8
30% 54 35 29 24 22 20 19 16 15
40% 83 56 46 39 36 33 31 27 25
50% 120 87 69 60 55 51 48 42 32
50% Sustain 48 34 27 24 22 21 20 18 13

*Test method
Base on ASTM D 575-91
Measured the force at 50% compression with the specimen set between two aluminum plates Specimen’s dimensions: Φ28.6mm Aluminum Plate dimensions: Φ28.6mm Compression Velocity: 5.0mm/minute with 1,960N load Cell
Equipment: Compression Load tester (Aikoh Engineering MODEL-310N)
Sustain 50%: Sustain 50% at 1 minute later

Thermal Resistance
Compression
Force
1.0mmT 1.5mmT 2.0mmT 2.5mmT 3.0mmT 3.5mmT 4.0mmT 4.5mmT 5.0mmT
100kPa 2.7 3.9 4.9 5.8 6.6 7.4 8.2 9.1 10.6
300kPa 1.9 2.5 2.9 3.4 3.8 4.5 5.0 5.6 6.6
500kPa 1.5 2.0 2.2 2.6 3.0 3.6 4.1 4.6 5.9

*Test method
Base on ASTM D 5470
Test piece size: Φ33mm
Measuring device: ANALYSIS TECH
Thermal Interface Material Tester TIM Tester 1300

Type and configuration
Type Product name Thickness Sheet size
Sarcon®
PG25A-00
Sarcon® PG25A-00-100GY 1.0mm ± 0.15mm 300mm × 200mm (Recommended Usable Size:
290mm×190mm)
Sarcon® PG25A-00-150GY 1.5mm ± 0.20mm
Sarcon® PG25A-00-200GY 2.0mm ± 0.30mm
Sarcon® PG25A-00-250GY 2.5mm ± 0.30mm
Sarcon® PG25A-00-300GY 3.0mm ± 0.30mm
Sarcon® PG25A-00-350GY 3.5mm ± 0.35mm
Sarcon® PG25A-00-400GY 4.0mm ± 0.40mm
Sarcon® PG25A-00-450GY 4.5mm ± 0.45mm
Sarcon® PG25A-00-500GY 5.0mm ± 0.50mm
* Unit Conversion
Thermal Resistance K・cm2/W × 0.16 K・in2/W
Tensile Strength MPa × 10.2 kgf/cm2
× 145 psi
Tear Strength N/mm × 1.02 kgf/cm
Thermal Conductivity W/m・K × 2.39×10-3 cal/cm・sec・K
Statement of Lieu of Warranty

• Properties of the products may be revised due to some changes for improving performance.
• Properties values in this document are not specification or guaranteed.
• This product is made of silicone, and silicone oil may exude from the product.
• This product is made of silicone, and low molecular siloxane may vaporize depending on operating conditions.
• The product is designed, developed, and manufactured for general industrial use only. Never use for medical, surgical, and/or relating purposes. Never use for the purpose of implantation and/or other purposes by which apart of or whole product remains in human body.
• Before using, a safety must be evaluated and verified by the purchaser.
• Contents described in the document do not guarantee the performances and qualities required for the purchaser’s specific purposes. The purchaser is responsible for pre-testing the product under the purchaser’s specific.
• Statements concerning possible or suggested uses made herein may not be relied upon, or be constructed, as a guaranty of no patent infringement.

Handling Notes

• It is recommended to use the material in up to 30% of compression ratio. Using the material beyond the recommended compression rate may result in excessive silicone oil exudation.
• It is recommended to compress the material with the equal ratio on the whole surface. Partial excessive stress may also result in excessive silicone oil exudation.