841AR-15ML

841AR-15ML Print Technical Data Sheet Nickel Conductive Print Description 841AR-15ML is an acrylic lacquer pigmented with conductive nickel flakes. The cured traces are durable and corrosion resistant. They adhere well to plastics and most electronic substrates. The product is best applied with a solvent-resistant brush. This print repairs damaged traces on keyboards, game controllers, remote controls, mixing boards, and PCBs. It also creates conductive traces for prototyping, hobbies, or maker projects. It is great for making small connections in or between circuits, such as jumpers, through-holes, bridges, and links. It can also be used to increase the surface area of contacts by painting the area around them. For applications requiring lower resistance, use the 842AR-15ML Silver Conductive Print. For a more economical alternative, use the 838AR-15ML Carbon Conductive Print. Features and Benefits • Creates durable, reliable and conductive traces • Resistivity of 0.0040 Ω·cm • Dries in minutes at room temperature • Good flexibility • Toluene, xylene and MEK free Usage Parameters Properties Value Touch dry or recoat time 2 min Full cure @22 °C [72 °F] 24 h Full cure @65 °C [149 °F] 30 min Shelf life 3y ISO 9001:2015 Quality Management System. Burlington, Ontario, Canada SAI Global File: 004008 Date: 30 April 2019 / Ver. 1.01 Page 1 841AR-15ML Print Temperature Ranges Properties Value Constant service temperature -40–120 °C [-40–248 °F] Intermittent temperature limit -50–125 °C [-58–257 °F] Storage temperature limits -5–40 °C [23–104 °F] Cured Properties Electric & Magnetic Properties Method Value Resistivity Method 5011.5 in MIL-STD-883H 0.0040 Ω·cm [250 S/cm] Magnetic class — Ferromagnetic Relative permeability — ≥100 a) Surface resistance is given in Ω/sq and the corresponding conductance in Siemens (S or Ω-). Cured Properties Physical Properties Method Value Paint type — Lacquer (thermoplastic) Color Visual Dark grey Abrasion resistant — Yes Blister resistant — Yes Peeling resistant — Yes Water resistant — Yes a) HVLP spray gun application on ABS coupons. ISO 9001:2015 Quality Management System. Burlington, Ontario, Canada SAI Global File: 004008 Date: 30 April 2019 / Ver. 1.01 Page 2 841AR-15ML Print Cured Properties Mechanical Properties Method Value Adhesion (ABS) (PC) (PVC) (Polyamide) (Glass) (Copper) (Aluminum) (Stainless steel) (FR4) (PP) ASTM D 3359 ASTM D 3359 ASTM D 3359 ASTM D 3359 ASTM D 3359 ASTM D 3359 ASTM D 3359 ASTM D 3359 ASTM D 3359 ASTM D 3359 5B 5B 5B 5B 0B 0B 0B 0B 5B 0B Pencil hardness (ABS) ASTM D 3363 3H, Hard Environmental & Ageing Study Method Value Salt fog test @35 °C [95 °F], 96 h a) Surface resistance before Surface resistance after Cross-hatch adhesion Cracking, unwashed area Visual color, unwashed area ASTM B 117-2011 MG-ELEC-120 MG-ELEC-120 ASTM D 3359-2009 ASTM D 661-93 ASTM D 1729-96 380 mΩ/sq 510 mΩ/sq 5B None Slightly darker a) HVLP spray gun application on ABS coupons. Surface Resistance by Coating Thickness 7.0 Surface Resistance (Ω/sq) 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0.25 0.30 0.35 0.40 0.45 0.50 0.55 Thickness (mil) Figure 1. Nickel conductive coating surface resistance at different thicknesses (the dots indicate typical successive coat thicknesses) ISO 9001:2015 Quality Management System. Burlington, Ontario, Canada SAI Global File: 004008 Date: 30 April 2019 / Ver. 1.01 Page 3 841AR-15ML Print Uncured Properties Physical Properties Method Value Color Visual Dark grey Odor — Acetone-like Viscosity @25 °C [77 °F] a) Brookfield viscometer 1 460 cP [863 mm2 /s] Density @25 °C [77 °F] ASTM D 1475 1.7 g/mL Flash point — -17 °C [1.4 °F] Solids content (wt/wt) Calculated 57% a) Brookfield viscometer at 20 RPM with spindle LV S62. Compatibility Chemical Resistance—Nickel has good resistance to oxidation in a variety of corrosive environments, including marine environments. In normal atmosphere or freshwater, nickel corrodes less than 0.0025 mm per year. Since nickel forms a passive protective film on its surface that slows down or stops further corrosion, the passive nickel resists corrosion better than pure copper fillers. In addition, nickel is harder than its silver or copper filled counterparts, providing greater durability. The thermoplastic resin is dissolved by common paint solvents like toluene, xylene, acetone and MEK. This allows for easy repair and rework of the coating, but makes it unsuitable for use in solvent-rich environments.  Adhesion—The coating adheres to most plastics used to house printed circuit assemblies; however, it is not compatible with contaminants like water, oil, or greasy flux residues that may affect adhesion. If contamination is present, first clean the surface to be coated with MG Chemicals 824 Isopropyl alcohol. Storage Store between -5 and 40 °C [23 and 104 °F] in a dry area, away from sunlight. Health and Safety Please see the 841AR-Liquid Safety Data Sheet (SDS) for further details on transportation, storage, handling, safety guidelines, and regulatory compliance. ISO 9001:2015 Quality Management System. Burlington, Ontario, Canada SAI Global File: 004008 Date: 30 April 2019 / Ver. 1.01 Page 4 841AR-15ML Print Application Instructions 1. Mix coating thoroughly by shaking the jar or with a mixing stick. 2. Apply a thin, even layer using a solvent-resistant brush. Cure Instructions Room temperature cure: • Let cure at room temperature for 24 h. Heat cure: • Put in oven at 65 °C [149 °F] for 30 min. Packaging and Supporting Products Cat. No. Packaging Net Volume Net Weight Packaged Weight 841AR-15ML Jar 12 mL [0.4 fl oz] 20.2 g [0.71 oz] 80.0 kg [0.18 lb] Thinners & Conductive Coating Removers • Thinner: Cat. No. 435-1L • Thinner 1: Cat. No. 4351-1L Technical Support Please contact us regarding any questions, suggestions for improvements, or problems with this product. Application notes, instructions and FAQs are located at www.mgchemicals.com. Email: Phone: Fax: support@mgchemicals.com +(1) 800-340-0772 (Canada, Mexico & USA) +(1) 905-331-1396 (International) +(44) 1663 362888 (UK & Europe) +(1) 905-331-2862 or +(1) 800-340-0773 Mailing address: Manufacturing & Support 1210 Corporate Drive Burlington, Ontario, Canada L7L 5R6 Head Office 9347–193rd Street Surrey, British Columbia, Canada V4N 4E7 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. ISO 9001:2015 Quality Management System. Burlington, Ontario, Canada SAI Global File: 004008 Date: 30 April 2019 / Ver. 1.01 Page 5