Overview of Rogers Arlon 99730N008
Rogers Arlon 99730N008 is an electrically conductive adhesive film from the Thermabond® line. It’s an uncured silicone rubber film that bonds two surfaces while maintaining electrical continuity and transferring heat. Delivered in a controlled film format, it’s cleaner and easier to use than liquid adhesives or pastes.
Key Properties
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Thickness (uncured): 0.203 mm
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Thermal conductivity: ~2.5 W/m·K
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Electrical resistivity: 5 × 10⁻² ohm-cm
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Operating temperature range: –73 °C to +204 °C
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Elongation: ~225% for stress relief
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Lap shear strength: ~500 psi (with primer)
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Cure: 15 minutes at 285 °F under 15–50 psi
This combination of electrical conduction, thermal performance, and mechanical compliance is what makes 99730N008 stand out.
Why Use 99730N008
Electrically Conductive Bonding
Provides both strong adhesion and an electrical path, ideal for grounding, EMI/RFI shielding, and maintaining continuity between bonded parts.
Thermal Management
With 2.5 W/m·K conductivity, it helps transfer heat from components to heat sinks or chassis for better thermal performance.
Stress Decoupling
Its silicone base flexes and absorbs stress caused by thermal cycling and CTE mismatch, preventing cracks and delamination.
Harsh Environment Durability
Reliable from –73 °C to +204 °C, making it suitable for aerospace, automotive, and industrial conditions.
Typical Applications
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EMI/RFI shield covers and enclosures
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Bonding heat sinks while preserving electrical continuity
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Power electronics packaging where heat and grounding are critical
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Sensor and RF modules in aerospace or automotive systems
Processing Tips
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Surface prep: Clean and prime surfaces for best adhesion
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Cure control: Maintain recommended 285 °F for 15 minutes under 15–50 psi
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Thickness consistency: Apply uniform pressure to achieve predictable bondline
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Testing: Validate performance with thermal and environmental cycling
Key Takeaway
Rogers Arlon 99730N008 combines bonding, conductivity, and thermal performance in one clean, film-based solution. For designers needing reliable electrical continuity and heat transfer under challenging conditions, this adhesive film delivers a proven, production-friendly answer.