• Item Name: Fine-L-Kote™ SR Silicone Conformal Coating (Product #2102)
• Manufacturer: Techspray® (ITW Contamination Control)
• Technologies: Silicone-based conformal coating (UL 746E, IPC-CC-830B qualified, UL 94 V-0 rated)
• Color: Transparent with UV indicator
• Cure Type: Ambient (72 hrs) / Accelerated heat cure (30 min @ 32°C, 45 min @ 93°C)
• Package Size: 12 oz aerosol (2102-12S), 1 pint (2102-P), 1 gallon (2102-G)
• Shelf Life: 1 year
Fine-L-Kote® SR is a silicone-based conformal coating that provides universal protection for PCBs and electronic assemblies against harsh environments.
Key Features & Benefits:
UL recognized (UL746E, File #E475454) and UL 94 V0 flame rated.
Thermal resistance: up to 200°C (392°F).
Dielectric strength: 1 kV/mil.
Resistant to moisture, chemicals, and vibration.
Flexible, reworkable, and qualified to IPC-CC-830B.
Available in aerosol, pint, and gallon packaging.
Shelf life: 1 year.
Protection of PCBs and electronic components in demanding environments.
Methods of application:
Dip coating (excellent for high volume).
Selective spray system (computer controlled, precise edge definition).
Manual aerosol/brushing (small production runs, rework, repair).
Suitable for assemblies requiring moisture/chemical/vibration resistance and long-term reliability.
Reworkable: coating can be soldered through or removed with Conformal Coating Remover (2510).
| Property | Value |
|---|---|
| Physical State | Liquid |
| Odor | Characteristic |
| % Volatile | 86% @ 20°C |
| Boiling Point | 134°F (79°C) |
| Flash Point | 10°F (-12.2°C) |
| Solubility in Water | Insoluble |
| Specific Gravity | 0.830 |
| VOC (Aerosol) | 46% |
| VOC (Bulk) | 58% |
| Shelf Life | 1 year |
| Property | Value |
|---|---|
| Thermal Resistance | -65°C to 200°C |
| Dielectric Strength | 1 kV/mil |
| Dielectric Constant | 2.66 |
| Insulation Resistance | 6.87 × 10¹⁵ ohms |
| Coefficient of Thermal Expansion | 2.1 × 10⁻⁴ (in/in/°C) |
| Hardness | Flexible (not rigid Shore scale) |
| UV Indicator | Yes |
| Solids Content (Aerosol) | 11% |
| Solids Content (Bulk) | 14% |
| Viscosity (Bulk) | 4–10 cP |
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