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Silicone-Free Thermal Pad
SHEEN’s AF Series Silicone-Free Thermal Pads are designed for silicone-sensitive thermal interface assemblies. These pads are free of siloxane and help eliminate the risk of silicone oil bleed, reducing issues such as optical lens fogging and electrical malfunctions.
Series coverage now runs from 1.0 to 10.0 W/m·K, including AF1000 at the 10 W/m·K class. With electrical insulation, UL94 V-0 flame resistance, sheet supply and die-cut support, the AF Series is suitable for sensors, AI data centers, security cameras, optical communication systems, hard drives, industrial controls, automotive sensors, and medical devices.
AF1000 10±1 W/m·K / 1–2 mm
AF SERIES · NON-SILICONE THERMAL INTERFACE MATERIALS
Silikonfreie Wärmeleitpads Serie
SHEEN’s AF Series Silicone-Free Thermal Pads are designed for silicone-sensitive thermal interface assemblies. These pads are free of siloxane and help eliminate the risk of silicone oil bleed, reducing issues such as optical lens fogging and electrical malfunctions.
Series coverage now runs from 1.0 to 10.0 W/m·K, including AF1000 at the 10 W/m·K class. With electrical insulation, UL94 V-0 flame resistance, sheet supply and die-cut support, the AF Series is suitable for sensors, AI data centers, security cameras, optical communication systems, hard drives, industrial controls, automotive sensors, and medical devices.
Silicone-Free / Siloxane-Free1.0–10.0 W/m·K0.25–5.0 mmUL94 V-0AF1000 AvailableSheet or Die-Cut
Wichtigste Vorteile
- Free of siloxane, helping eliminate the risk of silicone oil bleed
- Suitable for contamination-sensitive thermal interface applications
- Helps reduce risks such as optical lens fogging and electrical malfunction
- AF Series covers 1.0 to 10.0 W/m·K, with AF1000 as the top public grade
- Hervorragende elektrische Isolationsleistung
- UL94 V-0 flame resistance
- Self-adhesive design for easier installation and rework
- Available in standard sheets and customized die-cut parts
AF Series Model Comparison
The AF Series now spans 1.0 to 10.0 W/m·K, with AF1000 extending the range into the 10 W/m·K class.
Compare conductivity, thermal impedance, thickness and compression together. AF800 is available by quotation; AF1000 has a released datasheet.
On smaller screens, scroll the table horizontally to view all specifications.
| Modell | Farbe | Wärmeleitfähigkeit | Thermal Impedance 1 mm, @30 psi unless noted | Dicke | Standard-Härte | Selection Note |
|---|---|---|---|---|---|---|
| AF100 | Weiß | 1.0 W/m·K | 1.1 ℃·in²/W | 0.25 ~ 5.0 mm | 50 / 70 ± 5 Shore 00 | Entry-grade option for general low thermal loading and silicone-sensitive assemblies. |
| AF300 | Weiß | 2,0 W/m-K | 0.8 ℃·in²/W | 0.25 ~ 5.0 mm | 50 / 70 ± 5 Shore 00 | Moderate step-up for more demanding insulated gap-filling applications. |
| AF500 | Weiß | 3,0 W/m-K | 0.6 ℃·in²/W | 0.25 ~ 5.0 mm | 50 / 70 ± 5 Shore 00 | Balanced choice for broader use across industrial, storage, and communication equipment. |
| AF600 | Weiß | 5,0 W/m-K | 0.3 ℃·in²/W | 0.5 ~ 5.0 mm | 50 / 70 ± 5 Shore 00 | Higher-performance option for tighter thermal targets with insulation requirements. |
| AF600G | Weiß | 6,0 W/m-K | 0.25 ℃·in²/W | 0.5 ~ 5.0 mm | 50 / 70 ± 5 Shore 00 | High-performance series member for more demanding communication and AI hardware. |
| AF800 By quotation | Weiß | 8,0 W/m-K | 0.2 ℃·in²/W | 0.5 ~ 5.0 mm | 50 / 70 ± 5 Shore 00 | Quotation-only grade covering 0.5–5.0 mm gaps. Below AF1000 on conductivity but with a much wider thickness window; pricing, MOQ and die-cut formats are confirmed per project. |
| AF1000 | Gray | 10±1 W/m·K | ≤0.13 ℃·in²/W @50 psi | 1–2 mm | 50–65 Shore 00 | Highest public grade for data centers, network equipment, optical modules, servers, hard drives and SSDs. |
Compare at the same pressure. AF1000 thermal impedance is listed at 50 psi while the lower AF grades are compared at 30 psi — do not rank models by resistance value across different pressures.
Material Selection & Integration
01 · Contamination sensitivity
AF Series pads are silicone-free / siloxane-free and help eliminate the risk of silicone oil bleed in sensitive assemblies.
- Check silicone sensitivity before ranking materials by W/m·K.
- Evaluate compatibility with optics, sensors and precision electronics.
- Confirm electrical insulation requirements for the selected grade.
02 · Thickness, softness & pressure
The series covers 0.25–5.0 mm across grades. AF1000 is available in 1–2 mm; AF800 covers 0.5–5.0 mm by quotation.
- Start with actual gap, tolerance stack-up and allowable assembly force.
- AF100–AF800: 50 / 70 ± 5 Shore 00. AF1000: 50–65 Shore 00.
- Validate compression and contact quality in the actual assembly.
03 · Supply & production integration
The existing series specification lists 200 × 300 mm sheets and die-cut parts. Confirm the selected model, thickness and project-specific format before ordering.
- Self-adhesive behavior supports placement and rework.
- Confirm thermal, insulation and UL94 V-0 requirements for your model.
- Review required RoHS, Halogen-Free and REACH documentation.
04 · Storage & qualification
Store in a cool, dry, well-ventilated place away from open flames. The existing series information lists a 12-month shelf life.
- Lock model, thickness, format and compression condition before volume supply.
- Confirm handling, packaging and current technical data for the selected grade.
- Qualify thermal performance and compatibility in the intended use.
Applications & Recommended Starting Points
For higher thermal demand, AF600, AF600G and AF1000 are strong evaluation priorities. AF1000 is the highest public grade at 10±1 W/m·K for 1–2 mm gaps; AF800 is available by quotation when the gap needs the wider 0.5–5.0 mm window.
Optical communication
Evaluate AF600 / AF600G / AF1000
For silicone-sensitive optical modules and communication interfaces. Match the candidate grade to the actual gap and allowable contact pressure.
AI data centers & servers
AF1000 · 1–2 mm interfaces
The highest public grade for data centers, network equipment and servers when a 1–2 mm thickness window fits.
Sensors, cameras & medical electronics
AF300–AF600G · Evaluate by gap
For precision electronics that prioritize silicone-free materials and electrical insulation.
Storage & industrial control
AF500 / AF600 / AF600G; AF1000 where suitable
Screen hard drives, SSDs and industrial assemblies by thermal load, thickness, compression and interface geometry.
For broader 0.5–5.0 mm gaps requiring an 8 W/m·K class, request an AF800 quotation. Pricing, MOQ, technical data and die-cut formats are confirmed per project.
Datasheets & Downloads
AF1000 is the highest public grade with a released datasheet. AF800 is quotation-only: its 0.5–5.0 mm thickness window and die-cut formats are configured per project, so pricing, MOQ and technical data are confirmed on request.
Frequently Asked Questions
Q1. Why is contamination risk discussed first?
Because the AF Series is explicitly positioned as a silicone-free thermal pad family that is free of siloxane and intended to help eliminate silicone oil bleed in sensitive assemblies.
Q2. Why compare thermal impedance instead of only conductivity?
Because actual thermal performance depends on conductivity, thermal impedance, thickness, compression, and real assembly structure. W/m·K alone is not enough for model selection.
Q3. Why is thickness discussed separately from conductivity?
Because thickness determines whether the pad can properly bridge the actual gap without excessive stress. A higher-conductivity model is not automatically the best fit if the thickness and compression window do not match the assembly.
Q4. Which AF models are better starting points for higher thermal demand?
Based on the current public series page, AF600, AF600G and AF1000 are the stronger starting points when higher thermal performance is required. AF1000 adds a 10±1 W/m·K class for 1–2 mm interfaces; AF800 is a quotation-only grade for 0.5–5.0 mm gaps.
Q5. What production forms are available?
The current public page lists 200 × 300 mm sheet supply and die-cut parts, with customized packaging according to customer requirements.
Q6. What applications are explicitly listed on the current public page?
The current series page explicitly lists data centers, automotive sensors, AI devices, fiber optic communication systems, industrial control equipment, hard disk drives, and medical devices.
