833FRB-3L

Flame Retardant Epoxy Encapsulating & Potting Compound 833FRB Technical Data Sheet 833FRB Description The 833FRB Flame Retardant Epoxy Encapsulating and Potting Compound is an UL 94V-0 recognized electronic grade epoxy in the QMFZ2 category. This two-part epoxy provides a black and selfextinguishing finish with great insulation and protection value. It protects against static discharges, shocks, vibrations, and mechanical impacts. It insulates against heat and conductivity. It is extremely resistant to environmental humidity, salt water, and many harsh chemicals. Applications & Usages The 833FRB epoxy is used to pot or encapsulate printed circuit assemblies in a protective block. The cured epoxy improves reliability, operational range, and lengthens the life of electrical and electronic parts. It also helps hide and restrict access to intellectual property. Its primary applications are in the automobile, marine, aerospace, aviation, communication, instrumentation, and industrial control equipment. Benefits and Features  Certified UL 94V-0 (File # E334302)  Specification verified as per UL 746A  Mix ratio 2A:1B compatible with most dispensing equipment  Extreme resistance to water and humidity  Protects electronics from moisture, corrosion, fungus, thermal shock, and static discharges  Strong chemical resistance to brine, acids, bases, and aliphatic hydrocarbons  Volatile organic compound (VOC) and solvents free Usage Parameters Properties Working Life a) Shelf Life Full Cure @22 °C [72 °F] Full Cure @65 °C [149 °F] Full Cure @80 °C [176 °F] Full Cure @100 °C [212 °F] Temperature Ranges Value 60 min 5y 24 h 60 min 45 min 35 min Properties Constant Service Temperature Maximum Temperature Extrema b) Storage Temperature of Unmixed Parts a) Working life assumes room temperature for a 100 g sample. A 10 °C increase can decrease the work life by half. b) Maximum short-term exposure temperature toleration limit—not recommended as a sustained or repeated operation condition Page 1 of 7 Rev. Date: 13 December 2016 / Ver. 1.02 Value -30 to 175 °C [-22 to 347 °F] 200 °C [392 °F] 16 to 27 °C [61 to 81 °F] Flame Retardant Epoxy Encapsulating & Potting Compound 833FRB Technical Data Sheet 833FRB Principal Components Name Part A: Epoxide Resin Alkyl glycidyl ether Part B: Curing Amine Triethylenetetramine CAS Number 28064-14-4, 25068-38-6 68609-97-2 68410-23-1 112-24-3 Properties of Cured 833FRB Physical Properties Color Density @21 °C [70 °F] Flammability Tensile Strength Compressive Strength Lap Shear Strength (Stainless Steel) Lap Shear Strength (Aluminum) Flexural Strength Tensile Impact Izod Impact Hardness Outgassing (Total Mass Loss) Ash Content Method Visual ASTM D 792 94V ASTM D 638 ASTM D 695 ASTM D 1002 " ASTM D 790 ASTM D 1822 ASTM D 256 Shore D Durometer ASTM E 595 ISO 3451-1 Value a) Black 1.26 g/mL 94V-0 12 N/mm2 167 N/mm2 13 N/mm2 15 N/mm2 40 N/mm2 21 kJ/m2 1.1 kJ/m2 77D 1.45% 1.27% Electrical Properties Breakdown Voltage @68.11 mil (1.736 mm) Dielectric Strength Breakdown Voltage @3.175 mm [1/8”] Dielectric Strength Volume Resistivity Surface Resistivity Comparative Tracking Index (CTI) Method Dissipation & Constant @60 Hz Dissipation & Constant @1 kHz Dissipation & Constant @10 kHz Dissipation & Constant @100 kHz Dissipation & Constant @1 MHz Hot Wire Ignition (HWI) High-Current Arc Ignition (HAI) High Voltage Arc Tracking Rate (HVTR) High Voltage, Low Current, Dry Arc Resistance High Voltage Arc Resist. to Ignition (HVAR) ASTM D 150-98 " " " " Value 32.2 kV 471 V/mil [18.5 kV/mm] 43.5 kV 348 V/mil [13.7 kV/mm] 2.71 x 1015 Ωcm 2 x 1015 Ω/sq 322 V Dissipation (D) Constant (k’) 0.018 3.45 0.012 3.40 0.013 3.31 0.014 3.25 0.014 3.18 52.8 s 94.8 arc 48 mm/min 37.6 s 4.6 s ASTM D 149 Reference fit b) ASTM D 149 ASTM D 257 " ASTM D 3628 ASTM D 495 " [1 700 lb/in2] [24 200 lb/in2] [1 900 lb/in2] [2 200 lb/in2] [5 800 lb/in2] [10 ft·lb/in] [0.5 ft·lb/in] a) N/mm2 = mPa; lb/in2 = psi; b) To allow comparison between products, the Tautscher equation was fitted to 5 experimental dielectric strengths and extrapolated to a standard reference thickness of 1/8” (3.175 mm). Page 2 of 7 Rev. Date: 13 December 2016 / Ver. 1.02 Flame Retardant Epoxy Encapsulating & Potting Compound 833FRB Technical Data Sheet 833FRB Thermal Properties Glass Transition Temperature (Tg) Coefficient of Thermal Expansion (CTE) a) Before Tg After Tg Thermal Conductivity @25 °C [77 °F] Thermal Conductivity @50 °C [122 °F] Thermal Conductivity @100 °C [212 °F] Method ASTM D 3418 ASTM E 831 " " ASTM E 1461 " " Value 56 °C 74 ppm/°C 188 ppm/°C 0.28 W/(mK) 0.29 W/(mK) 0.29 W/(mK) a) ppm/°C = in/in/°C × 10-6 = unit/unit/°C × 10-6 Properties of Uncured 833FRB Physical Properties Color Viscosity @20 °C [73 °F] a) Density Mix Ratio by weight (A:B) Mix Ratio by volume (A:B) Solids Content (w/w) Physical Properties Color Viscosity @24 °C [73 °F] a) Density Odor Mixture (2A:1B) Black 11 500 cP [11.5 Pa·s] 1.30 g/mL 2.0:1.0 2.0:1.0 ~100% Part A Dark Grey 4 000 cP [4.0 Pa·s] 1.31 g/mL Mild Part B Black 14 000 cP [14 Pa·s] 1.18 g/mL Mild a) Brookfield viscometer at 50 RPM with spindle 4 Compatibility Adhesion—As seen in the substrate adhesion table, the 833FRB epoxy adheres to 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 printed circuit assembly with electronic cleaner such as MG Chemicals 4050 Safety Wash, 406B Superwash, or 824 Isopropyl Alcohol. Page 3 of 7 Rev. Date: 13 December 2016 / Ver. 1.02 Flame Retardant Epoxy Encapsulating & Potting Compound 833FRB Technical Data Sheet 833FRB Substrate Adhesion in Decreasing Order Physical Properties Aluminum Steel Fiberglass Wood Glass Polycarbonate Acrylic Polypropylene Adhesion Stronger Weaker Chemical Resistance—Integrity Testing Laboratories, Inc. performed water absorbance and chemical resistance estimation of the 833FRB using the IPC-TM-650 method. The chemical solvent resistance table presents the percent weight change and effect notes for this method. The results show low water absorption and a high chemical resistance to salt water and most ionic species including low concentration of sulfuric and citric acids; and sodium hydroxide base. Softening and swelling occurs for aggressive organic solvents. Chemical Solvent Resistance (IPC-TM-650) Physical Properties Water Heptane Salted Water (NaCl), 10% Sodium Hydroxide, 10% Citric Acid, 10% Ammonium Carbonate, 2% Sulfuric Acid, 3% Sulfuric Acid, 30% Ethanol Hydrochloric Acid, 5% Nitric Acid, 10% Phenol, 5% Carbon Tetrachloride Acetone Ethyl Acetate Toluene Ethylene Dichloride Weight Change 0.23% 0.25% 0.40% 0.42% 0.70% 0.70% 0.75% 0.74% 2.00% 1.40% 1.80% 7.60% 16.50% 17.67% 18.70% 26.74% Ruptured Page 4 of 7 Rev. Date: 13 December 2016 / Ver. 1.02 Note Softened Swelled Softened Softened Softened Softened and Swelled and and and and Swelled Swelled Swelled Swelled Flame Retardant Epoxy Encapsulating & Potting Compound 833FRB Technical Data Sheet 833FRB Storage Store between 16 and 27 °C [60 and 80 °F] in dry area away from sunlight. Prolonged storage or storage at or near freezing temperatures can result in crystallization. If crystallization occurs, reconstitute the component to its original state by temporarily warming it to 50 to 60 °C [122 to 140 °F]. To ensure full homogeneity, stir thoroughly the warm component, reincorporating all settled material. Re-secure container lid and let cool down before use. Health, Safety, and Environmental Awareness Please see the 833FRB Safety Data Sheet (SDS) parts A and B for more details on transportation, storage, handling and other security guidelines. Health and Safety: The 833 FRB parts can ignite if the liquid is heated, but once it is cured it is a selfextinguishing epoxy solid. Do not breathe in fumes of a cured epoxy block that is exposed to an external flames source because the flame retardant releases bromine to extinguish the flame. Wear safety glasses or goggles and disposable polyvinyl chloride, neoprene, or nitrile gloves while handling liquids. Part B in particular may causes skin burns and may cause sensitization if exposed over a long period of time. The epoxy is black and will not wash off once cured: wear protective work clothing. Wash hands thoroughly after use or if skin contact occurs. Do not ingest. While the product has low volatility and moderate odor, use in well-ventilated area. The cured epoxy resin presents no known hazard. Part A HMIS® RATING HEALTH: NFPA® 704 CODES * 2 FLAMMABILITY: 0 PHYSICAL HAZARD: 0 0 2 0 1 PERSONAL PROTECTION: Part B HMIS® RATING HEALTH: NFPA® 704 CODES * 3 FLAMMABILITY: 1 PHYSICAL HAZARD: 0 3 0 1 PERSONAL PROTECTION: Approximate HMIS and NFPA Risk Ratings Legend: 0 (Low or none); 1 (Slight); 2 (Moderate); 3 (Serious); 4 (Severe) Page 5 of 7 Rev. Date: 13 December 2016 / Ver. 1.02 1 Flame Retardant Epoxy Encapsulating & Potting Compound 833FRB Technical Data Sheet 833FRB Application Instructions Follow the procedure below for best results. If you have little or no experience with the 833FRB epoxy, please follow the long instructions instead. The short instructions provided here are not suitable for first time users. To prepare 2:1 (A:B) epoxy mixture        ATTENTION ! If the parts have clumped Scrape any settled material in the Part A container; (crystallized), pre-heat at 50 °C and stir and fold material until homogenous. [122 °F] until fully re-liquefied. Let cool Scrape any settled material in the Part B container; to room temperature before use. and stir and fold material until homogenous. Measure two parts by volume of the pre-stirred A, and pour in the mixing container. Measure one part by volume of the pre-stirred B, and slowly pour in the mixing container while stirring. Let sit for 30 minutes to de-air. —OR— Put in a vacuum chamber, bring to 25 inHg pressure, and wait for 2 minutes to de-air. If bubbles are present at top, use the mixing paddle to gently break them. Pour mixture into the mold or container containing the components to be encapsulated. TIP! The above mixing instructions assume 100 g and will give a working life of about 60 minutes. The working life decreases for mixing batches greater than 100 g, and increases for less than 100 g. ATTENTION ! Mixing >500 g [0.4 L] of Part B at time into A decreases working life and promotes flash cure. Use of epoxy mixing machines with static stirrer recommended for large volumes. Limit size to hand mixed batches. The maximum possible batch size is 1 kg and must be used immediately. To room temperature cure the 833FRB epoxy Let stand for 24 hours To heat cure the 833FRB epoxy Put in oven at 65 °C [149 °F] for 60 minutes –OR– Put in oven at 80 °C [176 °F] for 45 minutes –OR– Put in oven at 100 °C [212 °F] for 35 minutes ATTENTION ! Due to exothermic reaction, heat cure temperatures should be at least 25% below the maximum temperature tolerated by the most fragile PCB component. For larger potting blocks, reduce heat cure temperature by greater margins. Page 6 of 7 Rev. Date: 13 December 2016 / Ver. 1.02 Flame Retardant Epoxy Encapsulating & Potting Compound 833FRB Technical Data Sheet 833FRB Packaging and Supporting Products Cat. No. 833FRB-375ML 833FRB-3L 833FRB-60L Packaging Bottle Bottle Pail Net Volume 375 mL 12.6 fl oz 3L 3.17 qt 60 L 16 gal Net Weight 475 g 1.05 lb 3.81 kg 8.39 lb 76.1 kg 167 lb Packaging 0.6 g 4.5 g 77 g Weight 1.2 lb 9.3 lb 170 lb Supporting Products   Epoxy and Adhesive Cleaner: Cat. No. 8328-500ML, 8328-20L Epoxy Mold Release (for temperature cures ≤85 °C): Cat. No. 8329-350G Technical Support Contact us regarding any questions, improvement suggestions, or problems with this product. Application notes, instructions, and FAQs are located at www.mgchemicals.com. Email: support@mgchemicals.com Phone: +(1) 800-340-0772 (Canada, Mexico & USA) +(1) 905-331-1396 (International) Fax: +(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 Warranty M.G. Chemicals Ltd. warranties this product for 12 months from the date of purchase by the end user. M.G. Chemicals Ltd. makes no claims as to shelf life of this product for the warranty. The liability of M.G. Chemicals Ltd. whether based on its warranty, contracts, or otherwise shall in no case include incidental or consequential damage. Disclaimer This information is believed to be accurate. It is intended for professional end users having the skills 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. Page 7 of 7 Rev. Date: 13 December 2016 / Ver. 1.02