Fine-L-Kote SR Silicone Conformal Coating

Sku Number Name Size Units
Per Case
Price
Per Case
Case
Qty
 
2102-12S 12oz aerosol 12 oz (340g) 12 $509.04
2102-P Stnd viscosity - 1pt liquid 1 pt (473mL) 2 $117.46
2102-G Stnd viscosity - 1 gal liquid 1 gal (3.8L) 1 $321.67
2102-GHV High viscosity - 1 gal liquid 1 gal (3.8L) 1 $745.97
Packaging Order minimum case quantity only. Extra shipping fees may apply.
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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. 

For more information, check out our Essential Guide to Conformal Coating.

Fine-L-Kote SR is available in 2 viscosities:
Standard - 4-10cps
High - 70-80cps
 

Features & Benefits

  • UL recognized (UL746E) - file #E475454
  • Thermal resistance - 392°F (200°C)
  • Dielectric strength - 1100 volts/mil
  • Moisture resistant
  • Chemically resistant
  • Vibration resistant & flexible
  • Meets IPC-CC-830B
  • Passes the laboratory tests of MIL-I-46058C. However, it is not qualified on QPL-46058

Applications


FAQ's

What does 2-step curing mean?
That just means you break the accelerated curing process into 2 stages. You basically ramp up the heat so the coating has an opportunity to level. Otherwise, you can get a wrinkling or orange peel texture. That texture doesn’t affect performance, just aesthetic. This is not an issue when curing in ambient conditions.
What is the difference between full cure and tack-free cure?

Full cure is when it meets all the final specifications. There might be some out-gassing, but it will be as hard as it is going to be, and adhesion is as good as it gets.  Tack-free is as the name suggests, not sticky so you can move it along the assembly process.

What is the difference between dielectric strength and dielectric withstand voltage?

The dielectric strength is material intrinsic property and withstand voltage is surface property which depend on thickness of the material. They can be slightly different for thicker materials, but for conformal coating, the two numbers should be very close or the same. That is because we test coating at 3-5 mils thickness, calculate, then report the value per mil.

Articles

3 Testing Standards That Separate Conformal Coating From Shellac
As an electronic manufacturing services (EMS) supplier, you are required to think on your feet and are forced to gain new capabilities as your customers’ specification change. This can be daunting, especially when you try to bring conformal coating manufacturing in-house and make material and equipm...
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How To Identify and Cure The Top 7 Conformal Coating Defects
In this post well take a look at the 7 common conformal coating defects, their causes, and how to prevent. Read this post to avoid issues in your conformal coating process selection and application.
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The Essential Guide to Conformal Coating
Conformal coating improves PCB reliability, providing increased dielectric resistance, operational integrity, and protection from corrosive atmospheres, humidity, heat, fungus, and airborne contamination such as dirt and dust. Conformal coating are a special polymeric film forming product that prote...
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Video Guide to Removing Conformal Coating
Today I’m going to cover the process of removing conformal coating from a printed circuit board using a solvent-based coating remover or “stripper”. This might be required when repairing or refurbishing electronic devices. There are solvents that are effective of acrylic, silicone and urethane confo...
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