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Certonal® FC-752

Certonal Electronic Coating FC-752 is a clear, low viscosity, low surface tension solution of a fluorochemical polymer coating carried in a hydrofluoroether solvent. When applied to clean, moisture-free surfaces such as copper, epoxy laminates, aluminium, ceramic, steel, tin or glass, FC-752 dries to a thin transparent film with excellent anti-wetting, anti-stiction, anti-migration, and anti-corrosion properties required in many diverse applications.

Certonal FC-752 will form a clear, nearly invisible, uniform film that is insoluble in solvents such as heptane, toluene and water. The polymer covalently bonds to glass and metal oxide layers. These films can endure up to 200°C for prolonged periods and maintain good repellency. The solvent is non-flammable, low in toxicity and provides acceptable environmental properties for today's demanding electronics applications.

 Coating Solution
 Appearance Clear, colourless to light-coloured liquid solution
 Solvent 3M Novec(tm) Engineered Fluid 7200
 Specific Gravity
 1.43
 Boiling Point of Solvent
 76°C
Flash Point
None
Solids  2 wt% fluoropolymer
 Environmental  Low in toxicity, non-ozone depleting, non-flammable, VOC exempt (US EPA)
 One Part System
 Yes

 Fluoropolymer Coating
 Thermal Stability of Dry Film
Less than 5% wt. loss after 1hr at 200°C in air
 Tg (glass transition temperature)
 -63°C
 Contact Angles (static, dip coated/cured on glass)
 105° (water), 65° (hexadecane)
 Surface Energy
 14-15 dynes/cm
 Coating Thickness
 100nm-1μm depending on application
 Refractive Index
 1.41
 Solvent and Chemical Resistant
 Yes
 Solder-Through Repairability
 Yes
 Transparent  Yes
 Dielectric Constant
3.45 (at 10 Hz), 3.04 (at 1 kHz), 2.61 (at 1 MHz)
 Dissipation Factor
0.05 (at 10 Hz), 0.04 (at 1 kHz), 0.03 (at 1 MHz)
 Dielectric Breakdown Strength
1500 V/mil (20°C, 30% RH )

Advantages

The low surface energy films cast from Certonal coating FC-752 have excellent repellency to hydrocarbon oils, silicone oils, synthetic fluids and aqueous solutions. With a surface energy of 14-15 dynes/cm, Certonal FC-752 films compare favorably to coatings of polyethylene and polytetrafluoroethylene, which have surface energy values of approximately 31 and 18 dynes /cm respectively. This property enables non-solubilizing solvents such as heptane, toluene, and water as well as liquids having low surface tension values such as lubricating oils, silicones, etc. to bead and drain freely from surfaces coated with Certonal coating FC-752, while leaving the film intact. EGC-2702 coatings exhibit many of the practical characteristics desired in a coating system, making them especially well-suited for many applications.

Application Recommendations

The low surface energy films cast from Certonal coating FC-752 have excellent repellency to hydrocarbon oils, silicone oils, synthetic fluids and aqueous solutions. With a surface energy of 14-15 dynes/cm, Certonal FC-752 films compare favorably to coatings of polyethylene and polytetrafluoroethylene, which have surface energy values of approximately 31 and 18 dynes /cm respectively. This property enables non-solubilizing solvents such as heptane, toluene, and water as well as liquids having low surface tension values such as lubricating oils, silicones, etc. to bead and drain freely from surfaces coated with Certonal coating FC-752 , while leaving the film intact. EGC-2702 coatings exhibit many of the practical characteristics desired in a coating system, making them especially well-suited for many applications.

Product Safety and Handling

To avoid thermal decomposition, neither the coating solution nor the cured fluoropolymer should be subjected to temperatures above 250°C. Before using this product, please read the current product Material Safety Data Sheet and the precautionary statement on the product package. Follow all applicable precautions and directions.