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1908 数据表(PDF) 2 Page - 3M Electronics |
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1908 数据表(HTML) 2 Page - 3M Electronics |
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2 / 4 page ![]() Can serve as: • Anti-migration coating for displays, spindle motors or lubricated electronic parts • Anti-corrosion coating for a variety of materials and components • Designed for moisture and corrosion protection of printed circuit boards and electronic components • Low surface energy allows lubricating oils, silicones, photoresist solutions, etc. to bead and drain freely from coated surfaces • Helps provide repellency and anti- wetting properties against liquids – water, hydrocarbons, silicones and photoresists • Helps protect against corrosive gases and vapors in addition to liquids • The polymer can endure up to 175°C (347°F) for 24 hours and maintain repellency • Essentially insoluble in solvents such as heptanes, toluene and water • Adheres to a variety of materials (metals, glass, ceramics, polymers, composites, laminates) • Thermally and electrically stable with good dielectric properties • Easy to apply – dries quickly without the need for post-application curing • Excellent surface wetting, especially under low standoff SMT components • Coatings can be removed with corresponding Novec™ Engineered Fluids to allow for rework • Non-flammable, non-ozone-depleting, and low in toxicity • Low in global warming potential (GWP), RoHS compliant and volatile organic compound (VOC) exempt (Per the U.S. EPA)* Table 2: Typical physical properties Not for specification purposes. All values @ 25°C unless otherwise specified. Properties Fluorinated Polymer Coating Appearance Transparent, colorless Coating Thickness 0.4 - 5.0 microns (depending on application method) Solvent and Chemical Resistance Resists a variety of solvents and chemicals. Dissolves in acetone. Tg (Glass Transition Temperature) 44.5°C (112°F) Thermal Stability of Dry Film MIL-B-81744A Repellent to chlorinated silicone oil after 24 hours at 175°C (347°F) Contact Angles** (Static, Dip Coated/Dried on Glass Substrate) 105° (water), 65° (hexadecane) Refractive Index 1.39 Reworkable Yes (coating can be removed with corresponding solvent for rework) Non-Flammable Meets UL 94 V-0 Coefficient of Thermal Expansion - TMA 70 µm/(m·°C) Thermal Conductivity 0.1 W/m*K Dielectric Constant @30% RH per ASTM D150 3.2 (@1kHz) Dissipation Factor @30% RH per ASTM D150 0.002 (@1kHz) Dielectric Breakdown Strength @20°C, 30% RH per ASTM D149 2000 V/mil ** Measured contact angles can vary based on the type of surface, surface roughness and the application method. Applications Features Helps provide: • Moisture, chemical and corrosion protection for printed circuit boards and their components • An easy and cost-effective alternative to conformal coatings • Anti-wetting, anti-stiction, anti-migration and anti-corrosion properties in many diverse applications *The U.S. EPA defines a VOC as “any compound of carbon, excluding carbon monoxide, carbon dioxide, carbonic acid, metallic carbides or carbonates and ammonium carbonate, which participates in atmospheric photochemical reactions, except those designated by the EPA as having negligible photochemical reactivity.” This product is VOC exempt per the U.S. EPA. |
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