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Super Shield™ Graphite Conductive Coating New Item

 
839
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  • Description
  • Technical Data
  • MSDS
  • Applications
  • Usage Instructions
  • FAQ
  • Resources
The 839 Graphite Conductive Coating is an economical, acrylic paint that is used to create conductive, static free surfaces with excellent characteristics. Coated surfaces reduce electromagnetic or radio frequency interference (EMI/RFI). The graphite in the coat resists rubbing off to the touch. Further, the cured coat is designed to withstand large temperature changes without cracking.
  • High Conductivity—Low Surface resistivity of 47 Ω/sq for one coat (1 mil)
  • Tough and durable coating
  • Rub off resistant
  • Corrosion resistant coating
  • Stronger adhesion than water based coatings
  • Low VOC’s
 

Available Sizes

Catalog Number Sizes Available Description
839-900ML 0.9 L (0.24 gal) Liquid
839-1G 3.8 L (1.0 gal) Liquid
Technical Data
Download TDS (Liquid) Download Acrobat Reader

Specifications

Curing & Work Schedule
Dry to Touch (aerosol) 20 minutes
Recoat time (aerosol) 5 minutes
Full Cure at room temp. 24 hours
Full Cure at 65°C 15 minutes
Shelf Life 3 years
Storage Temperature Limits -5 to 40°C / 23 to 104°F
Service Ranges
Service Temperature -40 to +120°C (-40 to +248°F)
Maximum cCoverage for 25 micrometer (1.0 mil) <76,800 cm2 (<83 ft2)
Cured Properties - Electrical
Surface Resistance: 1 × coat @ 1.0 mil 47 ohm/sq
2 × coats @ 2.0 mil 28 ohm/sq
3 × coats @ 3.0 mil 16 ohm/sq
4 × coats @ 4.0 mil 13 ohm/sq
Cured Properties - Physical
Color Black
Abrasion resistant Yes
Blister resistant Yes
Peeling resistant Yes
Uncured Properties - Physical
Color Black
Density 0.996 g/mL
Solids Percentage (wt/wt) ~39%
Viscosity at 25°C (77°F) 9500 cP
Let Down Ratio (Paint:Solvent) 1:1
Flash Point -16°C (3.2°F)
Odor Ethereal

Surface Resistance by Coating Thickness

MSDS
Available MSDS:
Applications
Applications & Usages: Its primary application is to provide low cost EMI/RFI shielding or conductive base for some electroplating process, or anywhere in a manufacturing process where it is necessary to impart conductivity to a surface. It works well on drywall, and can be used to shield entire rooms. For detailed instructions refer to the 839 TDS (Liquid).

IMPORTANT USAGE INFO:
Do not use on thin plastics or on plastics where you want to keep original surface intact. The 838 spray contains a controlled amount of solvents designed to chemically etch plastic surfaces to help adhesion by melding the acrylic coating into the plastic substrate. This prevents flaking or peeling. Using the 4351-1L thinner lessens the etching effects for chemically sensitive substrates.
Compatibility: Adhesion—The 839 coating adheres to most plastics used to house printed circuit assemblies; however, it is not compatible with contaminants like water, oil, and greasy flux residues that may affect adhesion. If contamination is present, clean the surface to be coated first.

839 Adherence Compatibility

838 Adherence Compatibility
Acrylonitrile Butadiene Styrene (ABS) Chemically etches and adheres well to this substrate.
Polybutlylene Terephtalate (PBT) Chemically etches and adheres well to this substrate.
Polycarbonate Chemically etches and adheres well to this substrate.
Polyvinyl Acetate (PVA) Chemically etches and adheres well to this substrate.
Acrylics or acrylic paints Adheres well to clean surface
Polyurethane Adheres well to clean surface for most urethane types
Wood Adheres well with surface preparation
Usage Instructions
Shielding Application Guide Download Acrobat Reader