Reduce or Eliminate EMI / RFI Interference

An effective EMI/RFI shielding paint for use on plastic electronics enclosures. Consists of a tough, durable acrylic base pigmented with a high purity nickel flake.

• UL Recognized (File # E202609)
• Tested in compliance with IEEE Std. 299-1997
• Median attenuation 50 dB ±25 dB per 38 µm (~1.5 mil) for frequency range of 10 to 18,000 MHz
• High Conductivity—Low Surface resistivity of 0.6 Ω/sq for one coat
• Tough and durable coating
• Stronger adhesion than water based coatings
• Low VOC’s
• Thin or clean with M.G. Thinner Cleaner (Cat. No. 435-1L)

Applications & Usages:

Its primary applications are in cell phones, PDA’s, other consumer electronics, telecommunication equipment, industrial equipment, medical devices, military devices, and aerospace equipment. It can also works well on drywall, and can be used to shield entire rooms. Detailed Application Instruction for Aerosol and Liquid.

IMPORTANT USAGE INFO:

841 Aerosol Product must be vigorously shaken (approx. 2 minutes AFTER you hear the marble inside) prior to use, and periodically during use.  After use, invert can and spray to clear nozzle prior to storing.

Compatibility:

Adhesion—The 841 coating adheres to ABS, PBT, and most materials found on 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. For a list see the 841 Adherence Compatibility chart.

Specifications

AEROSOL SPECIFICATIONS: Curing & Work Schedule Aerosol Liquid Dry to Touch (aerosol) 30 to 45 s 3 to 5 min Recoat time (aerosol) 1 min 2 min Full Cure at room temp. 24 hour 24 hour Full Cure at 65 °C 15 min 60 min Shelf Life 1 year 3 years Storage Temperature Limits -5 to 40 °C (23 to 104°F) -5 to 40 °C (23 to 104°F) Service Ranges Aerosol Liquid Service Temperature -40 to +120 °C (-40 to +248 °F) -40 to +120 °C (-40 to +248 °F) Maximum Coverage per can per liter for 38 µm (1.5 mil) <8,400 cm2 (<9 ft2) <110,000 cm2 (<120 ft2) Electric Properties - Cured Surface Resistance (Aerosol):   See Chart 1 × coat @ 1.0 mil   ≤0.7 ohm/sq 2 × coats @ 1.5 mil   ≤0.3 ohm/sq 3 × coats @ 2.0 mil   ≤0.2 ohm/sq Surface Resistance (Liquid):     1 × coat (~1.50 mil)   ≤0.6 ohm/sq 2 × coats (~3.00 mil)   ≤0.25 ohm/sq 3 × coats (~4.50 mil)   ≤0.15 ohm/sq Shielding Attenuation: Frequency  Attenuation for 33 µm [1.5 mil]     IEEE STD 299-1997 10 to 100 kHz 42 dB to 75 dB   100 kHz to 1 MHz 42 dB to 69 dB   1 MHz to 10 MHz 40 dB to 69 dB   10 MHz to 100 MHz 24 dB to 40 dB   100 MHz to 1 GHz 29 dB to 48 dB   1 GHz to 10 GHz 31 dB to 57 dB   10 GHz to 18 GHz 31 dB to 58 dB Physical Properties - Cured Color Stainless steel Abrasion resistant Yes Blister resistant Yes Peeling resistant Yes Shielding Effectiveness See Chart Physical Properties - Uncured Aerosol Liquid Color Steel Grey Steel Grey Viscosity at 25 °C [77 °F] 100 cP [0.1 Pa·s] 3920 cP [3.92 Pa·s] Density 1.65 g/mL 1.65 g/mL Solids Percentage (wt/wt) ~41% ~65% Flash Point -18 °C [-0.4 °F] -18 °C [-0.4 °F] Odor Ethereal Ethereal

Available Sizes

Catalog Number Sizes Available Description 841-340G 340 g (12 oz) Aerosol 841-900ML 900 mL (1.65 kg) Liquid 841-1G 1 gal (6.75 kg) Liquid