Silicone Pad

Material Fundamentals & Chemistry

Silicone pads are engineered from high-purity polydimethylsiloxane (PDMS) polymers, reinforced with silica fillers and customized through platinum or peroxide cure systems. The molecular structure provides unique properties that organic elastomers cannot match.

Key Material Properties:

Property	Value Range	Significance
Operating Temperature	-60°C to 230°C	Extreme environment capability
Hardness Range	Shore A 10-80	Customizable softness to rigidity
Compression Set	<10% (22h/175°C)	Long-term performance retention
Tear Strength	10-50 kN/m	Durability under stress
Dielectric Strength	15-25 kV/mm	Electrical insulation properties

Advanced Material Formulations

High-Temperature Variants

• Phenyl-modified silicones for 300°C continuous service
• Ceramic-filled compositions for thermal management
• Low volatile content for clean room applications

Specialty Compounds

• Conductive formulations (10^3-10^6 Ω-cm) for ESD protection
• Thermally conductive versions (1.5-3.0 W/m·K) for heat dissipation
• FDA-compliant grades for food and medical contact

Performance Engineering

Mechanical Behavior

Recovery rate >90% after deformation

Viscoelastic response for vibration damping

Stress relaxation <15% under constant compression

Environmental Resistance

• UV stability: >1000 hours weatherometer testing
• Ozone resistance: Infinite under typical conditions
• Chemical inertness: Resists oils, solvents, and acids

Application-Specific Engineering

Electronics Thermal Management

• Gap filler pads with thermal impedance <0.5°C-in²/W
• Phase change materials for improved interface performance
• Electrically insulating thermal pads for power devices

Automotive Systems

• Engine compartment seals withstandting 150°C continuous
• Battery thermal interface materials with flame retardancy
• Vibration damping mounts for sensors and controllers

Medical Devices

• Biocompatible grades (ISO 10993 Class VI)
• Autoclavable formulations for sterilization
• Ultrasound transparency for imaging applications

Manufacturing Technology

Precision Fabrication

• Laser cutting tolerance: ±0.05mm
• Compression molding for complex 3D shapes
• Adhesive integration for permanent bonding

Quality Systems

• ISO 9001:2015 certified production
• UL 94 V-0 flammability compliance
• RoHS and REACH environmental compliance
• ITAR registration for defense applications

Selection Methodology

For thermal applications: Consider thermal conductivity and impedance
For sealing applications: Evaluate compression set and stress relaxation
For medical use: Verify biocompatibility certifications
For outdoor applications: Ensure UV and ozone resistance