Fine-L-Kote SRV950 Silicone Conformal Coating – High Viscosity

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2127-P950 Fine-L-Kote SRV950 - 1 pint   2 $230.52
2127-G950 Fine-L-Kote SRV950 - 1 gallon   1 $451.35
2127-5G950 Fine-L-Kote SRV950 - 5 gallon   1 $1,958.40
2127-54G950 Fine-L-Kote SRV950 - 54 gallon   1 Call for pricing
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Low VOC coating – Ideal for moisture, thermal, corrosion and vibration protection.

Fine-L-Kote™ SRV is a high gloss, ultra-clear conformal coating that is moisture and abrasion resistant. This coating offers resilient, mechanical stress-reducing PCB protection, and is low VOC. It extends component life by protecting against adverse environments, with resistance to moisture, salt, fungus, and corrosive vapors. Because of its exceptional dirt, dust, and soil repellency, the coated surfaces remain clean longer.

Fine-L-Kote SRV cures quickly at ambient conditions or heat acceleration can speed in-line processing. Ready-to-use viscosities are available: standard (SRV) for manual and selective spray systems, and high viscosity (SRV 950) for dipping processes.

Silicone conformal coating provides excellent protection in a very wide temperature range. SR provides good chemical resistance, moisture and salt spray resistance, and is very flexible. Silicone conformal coating isn’t abrasion resistant because of its rubbery nature, but that property does make it resilient against vibrational stresses. Silicone coatings are commonly used in high humidity environments, like outdoor signage. 

Features & Benefits

  • Low VOC
  • Low toxicity – HAPs free
  • Exceptional surface finish – high gloss, superior transparency
  • Moisture resistant
  • Corrosion resistant
  • Vibration resistant & flexible
  • Thermal resistance - 392°F (200°C)
  • Dielectric strength - 720 volts/mil
  • RoHS Compliant

Specifications

  • Meets IPC-CC-830B
  • Meets MIL-I-46058C
  • UL94 flammability rating V-0
  • MIL-STD 810G salt spray test
  • MS941-04 salt spray test

FAQ's

Is conformal coating conductive?

No, conformal coatings are non-conductive, or insulative. The job of conformal coating is to isolate the PCB or components from the environment and even components (i.e. high voltage or high heat) from the rest of the board. To do that properly, a coating must have electrically insulating properties with as high of a dielectric withstand voltage (or strength) as possible.


Is conformal coating waterproof?

While conformal coatings can offer a moisture resistant layer of protection, most cannot be considered waterproof. Even if applied heavily, most coatings are semi-permeable, so allow some amount of moisture through. Conformal coating can, however, prevent current leakage or corrosion due to ambient moisture. To truly waterproof electronics, you either need gasketing to seal the electronics within the packaging or cover the electronics with a waterproof encapsulant or potting compound.


Is conformal coating necessary?

Whether or not conformal coating is required depends on the environment the electronic device will operate in, the reliability requirement of the device, and the cost of failure, whether in dollars or human lives. Typical consumer devices are generally not coated because cost is one of the top driving factors, and a coating step certainly adds to that. Devices operating in harsh environments may require coating, and the type of stresses and contamination will point to the best option, whether that is acrylic resin (AR), silicone resin (SR), urethane resin (UR), or some other type of protection. Aviation, aerospace, and medical devices often require coating because of the mission critical nature of these applications.


What does conformal coating do?

Conformal coating is a specially engineered polymeric film-forming product that protects circuit boards, components, and other electronic devices from harmful environmental conditions like moisture, thermal shock, static, vibration, and contamination. These coatings ‘conform’ to the irregular landscape of the PCB providing increased dielectric resistance, operational integrity, and reliability. There are a number of options for coating technologies, and the best option should depend mainly on the protection required. Application method and ease of rework are also important factors, but should generally be considered secondary to the protective performance needed.

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