• Item Name: Fine-L-Kote High Viscosity SR Silicone Conformal Coating (Product# 2102-HV)
• Manufacturer: Techspray (ITW Contamination Control)
• Technologies: Silicone conformal coating
• Color: Colorless to light yellow
• Cure Type: Thermal/air; ambient cure 72 hrs, accelerated 30 min @ 32°C + 45 min @ 93°C
• Package Size: 1 gallon liquid
• Shelf Life: 1 year
Fine-L-Kote High Viscosity SR Silicone Conformal Coating is a versatile, high-performance coating designed to protect electronic assemblies across a wide range of environments. It offers excellent thermal, moisture, chemical, and vibration resistance, while maintaining flexibility and dielectric strength. UL94 V-0 rated and IPC-CC-830B compliant, it supports multiple application methods including spray, dip, and brush. The high-viscosity formulation allows for thicker coatings in a single application. Tack-free in 60 minutes, full cure is achieved in 72 hours, providing robust protection and ease of rework.
Protection of printed circuit boards and electronic assemblies in industrial, automotive, and aerospace environments
High-reliability electronics requiring thick conformal coatings
Components exposed to moisture, vibration, or thermal stress
Rework and repair of electronic assemblies
| Property | Before Mixing | After Mixing / Applied |
|---|---|---|
| Physical State | Liquid | – |
| Color | Colorless to light yellow | – |
| Odor | Characteristic | – |
| Flash Point | 39.9ºF (4.4ºC, Closed Cup) | – |
| Flammable Limits | Lower 1.8%, Upper 10% | – |
| Boiling/Condensation Point | 174.2ºF (79ºC) | – |
| Relative Density | 0.83 | – |
| Volatility | 86% (w/w) | – |
| Shelf Life | 1 year | – |
| Cure Type | – | Thermal / Air |
| Tack-Free Time | – | 60 min |
| Accelerated Cure | – | 30 min @ 32ºC, 45 min @ 93ºC |
| Ambient Cure | – | 72 hrs |
| UL 94 Rating | – | V-0 |
| Solids Content | 55% | – |
| Viscosity | 70–80 cps | – |
| Operating Temp Range | – | -65° to 200ºC |
| Dielectric Strength | – | 1.1 kV/mil |
| Coefficient of Thermal Expansion | – | 2.1 × 10⁻⁴ in/in/°C |
| Insulation Resistance | – | 6.87 × 10¹⁵ Ω |
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