842WB Liquid Datasheet by MG Chemicals

ISO 9001:2015 Quality Management System. Burlington, Ontario, Canada SAI Global File: 004008 05 April 2021 / Ver. 4.8 1
842WB Liquid
Cured Properties
Resistivity 7.5 x 10-5 Ω·cm
SurfaceResistance@50µm 0.0020 Ω/sq
Saltfog@35°C[95°F],96h Excellent
ServiceTemperatureRange -40–120 ˚C
Usage Parameters
RecoatTime(plastic) 20 min
RecoatTime(drywall) 5 min
CureTimes 24h@22 ˚C
3h@65 ˚C
RecommendedFilmThickness 25 µm
MinimumFilmThickness 15 µm
TheoreticalCoverage@2mil 32665 cm2/L
(basedon100%transferefficiency)
Uncured Properties
Viscosity@25˚C 195 cP
Density 1.50 g/mL
PercentSolids 60 %
ShelfLife 3 y
CalculatedVOC 37 g/L
EMI Conductive Paint
842WB is a 1-part, water-based conductive
paint, pigmented with highly conductive silver
flake. It is easy to use, with no let-down and
no heat cure necessary. It can be applied by
spray,brushorroller.Itadheresstronglytomost
injection-moldedplastics,suchasABS,PBTand
PVA. It also bonds well to drywall and can be
paintedoverwithcommonarchitecturalpaints.
842WB is designed to reduce EMI/RFI
interferences in architectural and electronic
applications.
Features & Benefits
• ProvidesexcellentEMI/RFIshieldingovera
broadrangeoffrequencies
• Non-flammableandnonoxiousodors
• Shipsasanon-DGbyair
• LowVOCcontent
Available Packaging
Cat. No. Packaging Net Vol. Net Wt.
842WB-15ML Jar 12 mL 17.9 g
842WB-150ML Bottle 150 mL 224 g
842WB-850ML Can 850 mL 1.27 kg
842WB-3.78L Can 3.60 L 5.39 kg
Contact Information
MGChemicals,1210CorporateDrive
Burlington,Ontario,CanadaL7L5R6
Email: support@mgchemicals.com
Phone:NorthAmerica:+(1)800-340-0772
International: +(1)905-331-1396
Europe: +(44)1663362888
‘% Chemicals 5m.“ Rfifiunm (mm) 1; 1: Thickness (mm) Shielding Attenuation Attenuation (a!)
ISO 9001:2015 Quality Management System. Burlington, Ontario, Canada SAI Global File: 004008 05 April 2021 / Ver. 4.8 2
842WB Liquid
Application Instructions
Read the product SDS and Application Guide for
more detailed instructions before using this product
(downloadableatwww.mgchemicals.com).
Recommended Preparation
Plastic—Clean the substrate with Isopropyl Alcohol,
MG#824,sothesurfaceisfreeofoils,dust,andother
residues.
Drywall—Fornewdrywall,applydirectlyontopofthe
drywall primer, after the primer has properly cured.
Whenapplyingontopofexistingpaint,firstwashthe
wall with a solution of T.S.P. diluted with water at a
1:10ratio,toensuregoodadhesion.
Paint Roller
This product may be applied with a standard paint
roller.Thinningisnotrequired.
Manual Spray Guns
Useastandardfluidnozzleguntospraythepaint.The
settings listed below are recommendations; however,
performancewillvarywithdifferentbrands:
LVM P HVLP
Nozzletipdiameter 1.2–1.4mm 1.2–1.4mm
Inletpressure 5–15psi 5–15psi
Airflow 10–15SCFM 8.3SCFM
Aircap 5–10psi 5–10psi
When using a pressure pot and agitator, keep the
agitator at low mixing speed with air pressure of
20–50 psi. Use the lowest pressure necessary to
keeptheparticlessuspended.
Surface Resistance by Paint Thickness
0.01
0.01
0.02
0.02
0.03
0.8 1.3 1.8 2.3 2.8 3.3 3.8 4.3
Surface Resistance (Ω/sq)
Thickness (mil)
Selective Coating
Forhighervolumeapplications,paintcanbeapplied
via selective coating equipment. Use a system with
constant fluid recirculation to keep the particles
fromsettlinginthelines.Afluidnozzlerangingfrom
1.2mm–1.4mmdiameterand5–10psifluidpressure
isrecommendeddependingonnozzlesize.
Cure Instructions
Allowtodryatroomtemperaturefor24hours,orafter
lettingsitfor20minutes,curethepaintinanovenfor
3hours@65˚C.
Clean-up
Cleanthespraysystemandequipmentwithtapwater
after use.
Storage and Handling
Storebetween-20and27˚Cinadryarea,awayfrom
sunlight(seeSDS).
If exposed to freezing temperatures during storage
or transport, keep product at room temperature for
atleasttwodaysandensureitisfullyhomogeneous
priortouse.
Disclaimer
This information is believed to be accurate. It is
intended for professional end-users who have the
skillsrequiredtoevaluateandusethedataproperly.
M.G.ChemicalsLtd.doesnotguaranteetheaccuracy
ofthedataandassumesnoliabilityinconnectionwith
damagesincurredwhileusingit.
Shielding Attenuation
0
20
40
60
80
100
120
0.01 0.1 110 100 1000 10000 100000
Attenuation (dB)
Frequency (MHz)
Al uminum Panel 842WB Blank
Testperformedwithatwo-coatthickness.