Silicones

Silicone Conformal Coatings

Silicone conformal coatings are most widely used in high-temperature environments due to their innate ability to withstand prolonged exposure to higher temperatures than most other conformal coating chemistries. This attribute has made them the primary choice for under hood automotive applications. They are also capable of being applied in thicker films making them useful as a vibration dampening/isolation tool if the coated assembly is to be placed in a high vibration environment.

Silicone Conformal Coating Performance

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Rework of Silicone coated assemblies can sometimes be difficult due to their chemical resistance and the fact that, unlike Acrylics and Polyurethanes, they do not vaporize with the application of heat. These products do not necessarily represent our complete Silicones range.

Silicone Conformal Coating Products

HumiSeal® 1C49Silicones

Moderately fast moisture curing, single component, low viscosity VOC-free silicone conformal coating which provides excellent moisture and environmental protection for printed circuit assemblies.

  • Unique Features: Room Temperature Cure, Moderate Viscosity, MIL and UL Listed
  • RoHS Directive 2011/65/EU compliant

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 HumiSeal® 1C49LVSilicones

Silicone based conformal coating which provides excellent moisture and environmental protection for printed circuit assemblies. 1C49LV is a single component with high solids that fluoresces under UV light.

  • Unique Features: Heat Cure (110 to 130 Cº), MIL and UL Listed
  • RoHS Directive 2011/65/EU compliant

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 HumiSeal® 1C55Silicones

Lower viscosity, single component, fast moisture cure, VOC-free silicone conformal coating which provides excellent moisture and environmental protection for printed circuit assemblies.

  • Can be cured at room temperature in just a few minutes.
  • RoHS Directive 2011/65/EU compliant

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 HumiSeal® 1C51Silicones

Heat cure, single component, low viscosity VOC-free silicone conformal coating which provides excellent moisture and environmental protection for printed circuit assemblies. 1C51 is a thermal (heat) cure product.

  • Unique Features: Heat Cure (110 to 130 Cº), MIL and UL Listed
  • RoHS Directive 2011/65/EU compliant

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 HumiSeal® 1C63Silicones

UV/RTV curing, oxime-type cure silicone conformal coating which provides excellent moisture and environmental protection. A secondary moisture cure will cure unexposed areas of the coating within 24 hours at ambient temperature, 50% relative humidity.

  • Unique Features: UV Cure for Fast Cycle Times, UL Listed, RoHS Directive 2011/65/EC compliant
  • HumiSeal® 1C63 is self-leveling, with excellent weathering resistance

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 HumiSeal® 2C51Silicones

Two component high strength, fast curing silicone encapsulating gel supplied as Parts A and B, suitable for general printed circuit board applications.  The two components are blue and yellow and turn green when mixed.

  • RoHS Directive 2011/65/EC compliant.
  • Room temperature cure and low viscosity for ease of application

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