SunChemical Gwent C70709D22 Silver Zinc Ink

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SunChemical Gwent C70709D22 Silver Zinc Ink (discontinued **)
Categories:	Fluid; Other Engineering Material; Ceramic/Metallic Coating
Material Notes:	Silver Zinc Ink C70709D22 is designed as a screen printing ink for coating Barium Titanate PTC ceramics as the base layer of a two part system. The dried film should be coated with C70709D21 before final drying and firing. The ink is in a ready to use form at a viscosity suitable for automatic or semiautomatic screen printing. The ink should be gently stirred before use avoiding introduction of air bubbles. Information provided by Gwent Electronic Materials Ltd.
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Physical Properties	Original Value	Comments

Particle Size	1.0 µm	Main Break; Fineness of Grind
	3.0 µm	3rd Streak; Fineness of Grind
Viscosity	14700 cP @Shear Rate 230 1/s, Temperature 25.0 °C	Haake VT550 cone and plate viscometer (PK1.1°)
Storage Temperature	20.0 °C

Electrical Properties	Original Value	Comments
Surface Resistivity per Square	0.0071 ohm	fired; 21 microns thick

Processing Properties	Original Value	Comments
Processing Temperature	150 °C
Cure Time	0.167 - 0.25 hour
Shelf Life	3.00 Month

Descriptive Properties
Coverage cm²/g	130	230 mesh stainless steel screen
Printing Mesh counts/inch	180 to 340	stainless steel or polyester screens

**
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WGEM099 / 75952

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