JONES 21-881 Thermal Pad
JONES 21-881 is an ultra-soft, putty-like thermal interface material with 8.0 W/m·K conductivity. It conforms well to rough surfaces and delivers high thermal performance with low mechanical stress.
21-881 Features
- Thermal conductivity: 8.0 W/m·K
- Ultra soft, excellent thermal interface wetting
- High reliability and surface compliance
21-881 Applications
- Memory and mass storage devices
- Automotive and telecom electronics
- Audio/video equipment, IT infrastructure
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
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21-881 TYPICAL PROPERTIES |
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Properties |
Typical Properties |
Test Method |
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Thermal |
Thermal Conductivity (W/m·K) |
8.0 |
ASTM D5470 |
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Operating Temperature Range (°C) |
-55~150 |
JONES Test Method |
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Physical |
Color |
Blue |
Visual |
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Composition |
Ceramic&Silicone |
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Density (g/cm^3) |
3.2 |
ASTM D792 |
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Thickness Range (mm) |
1.0~5.0 |
ASTM D374 |
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Thickness Tolerance(mm)> 1mm |
±10% |
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Hardness (Shore 00) |
50 |
ASTM D2240 |
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Electrical |
Breakdown Voltage (KV AC/mm) |
>5 |
ASTM D149 |
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Volume Resistivity (Ohm·cm) |
10^13 |
ASTM D257 |
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Dielectric Constant@1MHz |
6.6 |
ASTM D150 |
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Regulatory |
Flame Rating |
V0 |
UL94 |





