EMI SHIELDING & Coating (RC-101£» RC-102£» RC-103)
Description£º RC series EMI shielding coating is one in a series of ROBOO conductive coatings materials used for EMI/RFI shielding protection. This material was specially formulated for low electrical resistance at very thin dry film thickness on plastic electronic equipment housings. It exhibits excellent environmental aging stability with superior scratch/mar resistance while providing excellent long-term shielding and grounding properties.
Features:
1¡¢ Excellent adhesion and cohesion--passes ASTM D3359-93 crosshatch tape test required to meet UL approval
2¡¢ Excellent mar and scratch resistance--Coating integrity and conductivity stays intact at seams and grounding
3¡¢ points Low ohms at thin film build--Eliminates problems with film-build on vertical walls and reduces mask washes per part.
4¡¢Good flow characteristics--Wet paint flows around corners and into hard-to-reach spots for smooth uniformity.
5¡¢Excellent aging stability--Shielding integrity stays intact in harsh environments.
Typical Properties (as supplied) : Pigment : silver Binder : vinyl Weight solids : 47.0 +/- 2.0% Diluent: MEK or see "Mixing and Dilution" Density : 10.7 lb/gal Theoretical coverage: 229 sq ft/gal/mil Shelf life: 12 months Viscosity (#2 Zahn cup @ 77¡ãC/25¡ãF) : 20-25 sec Typical Properties (as sprayed) : VOC : 699 g/l Drying time : 5 min air dry to touch/10 min to handle then 10 min @ 225¡ãC (107¡ãF) or air cure for 24 hours Typical Properties (when dried) : Sheet resistance < 0.020 ohms/sq/mil Attenuation : > 75 dB
Method of Use: Mixing and Dilution: RC series emi shielding coating is easily mixed, 10-15 minutes, on a paint shaker or by stirring before use. Check to be sure all solids are in suspension prior to use. This material can be reduced up to 1:1 using MEK or a special blend of 50% isopropyl alcohol, 34.5% acetone, 15% isobutyl alcohol, and 0.5% diacetone alcohol which was formulated for solvent sensitive plastics.
Application Method : This material can be sprayed using conventional or HVLP systems with recirculating HVLP being the preferred method due to the high transfer efficiency. Robotic application of electrodag 18DB70 is optimal with recirculation of the paint from the pot through the gun and back via a pump delivery system.
Drying: RC series emi shielding coating dries to touch in 5 minutes and can be handled in approximately 10 minutes, depending on ambient temperature. It can be force dried for 10 minutes at 225¡ãC (107¡ãF) or air dried for 24 hours.
Quality Control : Measure resistance after coating is dry. Digital ohmmeter measurements using the same type of test probes at constant spacing avoids confusion and is highly recommended. Mash Cleaning : Masks can be cleaned with solvent or solventless mask washers. Over-spray can be removed from plastic with MEK or a 40%/60% acetone/IPA wipe.
Container Sizes : 1 gallon (4,000 grams) 5 gallon (20,000 grams)
Precautions : Flammable. ctions. Note : Befor using this or any chemical product, please consult the Material Safety Data Sheet for proper handling instru
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