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3M™ Scotchcast™ Flame-Retardant Electrical Insulating Resin 2131 Data Sheet January 2015
Description
3M™ Scotchcast™ Flame-Retardant Electrical Insulating Resin 2131 is a two-part polyurethane resin designed to replace the cable jacket when splicing or repairing mine and portable cables. Its formulation makes it particularly suited to withstand the rugged conditions under which mine and portable cables must operate. Flame-Retardant Resin 2131 is also used as the insulating material for cable splices operating at up to 1000 volts and designed for 194ºF (90ºC) continuous use/266ºF (130ºC) overload. Flame-retardant Bonds to most modern cable jackets Bonds to itself Tough, yet flexible (semi-flexible) Available in two-part closed mixing pouch for easy mixing and pouring Excellent multi-purpose moisture sealing resin Room temperature cure Color: Black Agency Approvals & Self Certifications For RoHS information, please visit www.3M.com/ROHS When used in accordance with the appropriate kit configuration, Flame-Retardant Resin 2131 meets Part 7, Title 30 CFR and carries the following MSHA approvals: 07-KA060002-MSHA 3M™ Scotchcast™ Flexible Power Cable Inline Splice Kit 82-F Series 3M™ Scotchcast™ Flexible Power Cable Tap Splice Kit 82-BF1 07-KA060007-MSHA 3M™ Scotchcast™ Mine and Portable Cable Splice Kit 8096 Series 3M™ Three-Conductor Inline Splice Kits 5750 and 5760 Series 3M™ Scotchcast™ Jacket Repair Kits M Series* * The Flame-Retardant Resin 2131 is not included with the “M” Series kits and must be ordered separately. Resin
Applications
To replace or repair the jacket on both single and multi-core power cables To insulate between conductors of multi-core splices operating at up to 1000 volts To seal the crotch or sheath wh en terminating multi-core cables Potting cable or wire encasements Potting cable fittings & splices Potting printed circuit boards Potting junction boxes Filling back shell connectors Potting for motor repairs
3M™ Scotchcast™ Flame-Retardant Electrical Insulating Resin 2131 2 of 4 Typical Physical and Electrical Properties Not for specifications. Values are typical, not to be considered minimum or maximum. Properties measured at room temperature 73°F (23°C) unless otherwise stated. Physical Properties (Test Method) Typical Value US units (metric) Color Black Hardness (ASTM D2240) 82 Shore A Density 0.703 oz/in3 (1,217 g/cm3) Tensile Strength (ASTM D412) 1038 psi (73,0 kg/cm2) Elongation (ASTM D412) 339% Glass Transition Temperature, Tg (DSC) -103 ºF (-75ºC) Maximum Exotherm, 100g (3M TM-67) 147ºF (64ºC) rise Gel Time @ 75ºF (23ºC) (3M Method TM-67) 17 minutes Viscosity (cP) @ 77°F (25°C) (3M Method TM-173) Part A Prepolymer Part B Polyol 600 - 1,100 4,000 - 10,000 Specific Gravity (ASTM D891) Part A Prepolymer Part B Pol yol 1.08 1.29 Moisture Absorption (ASTM D471) 168 hrs. Immersion @ 212ºF (100ºC) 4.9% Adhesion to Metals (lb/in2) (3M TM-456) Copper 550.2 Brass 274 Steel 491.3 Aluminum 221 Adhesion to Cable Jackets (lb/in2) (3M TM-457) Vinyl 125 Neoprene 115 Nylon >72 XLPE 208.5 Electrical Properties (Test Method) Typical Value Dielectric Strength (ASTM D149) 343 V/mil (13,5 kV/mm) Dielectric Constant, @ 60Hz (ASTM D150) 5.22 @ 73ºF (23ºC) 6.33 @140ºF (60ºC) 6.56 @194ºF (90ºC) Dissipation Factor, @ 60Hz (ASTM D150) 5.6% @ 73ºF (23ºC) 7.9% @140ºF (60ºC)
3M™ Scotchcast™ Flame-Retardant Electrical Insulating Resin 2131 3 of 4 Usage & Handling IMPORTANT: Product should remain in the sealed container/envelope until ready to use. In cold weather, warm closed mixing pouch to 60°F (16°C) or warmer before mixing. Keep in a warm area, such as truck cab or inside pocket, until ready to use. General Instructions Closed Mixing Pouch: Tear open the protective envelope and remove the closed mixing pouch Before breaking the barrier, squee ze the bag to premix the separate components. Firmly grasp each flat side of the bag near the center barrier, while pulling the sides of the barrier apart and rolling the sides of thumbs through the barrier. Break the barrier all the way across to the side seals. Alternately squeeze each end of the bag, forcing the resin back and forth (30 seconds). Strip the resin from the corners of the bag and continue to mix until the color is uniform (additional 30 seconds, maximum). Clip off a corner of the closed mixing pouch and pour Bulk Components: Measure the appropriate quantity of each component as indicated in the table below, then thoroughly mix to a uniform color and consistency prior to use. Opened bulk components should be blanketed with nitrogen to prevent moisture contamination. Component Color Weight Ratio (w/w) Volume Ratio (v/v) Part A Pale Yellow 1 1 Part B Black 2.1 1.69 Typical De-Mold/Cure Time: NOTE: Values are typical, not to be considered minimum or maximum. Always confirm that material is no longer tacky prior to de-molding. Safety Precautions: Read all Health Hazard, Precautionary and First Aid statements found in the Safety Data Sheet (SDS) and/or product label of chemicals prior to handling or use. Wear protective gloves when using this product. Temperature De-Mold Time Approximate Cure Time 70°F (21°C) 1.5 – 2 hrs 16 – 24 hours 50°F (10°C) 3.5 – 4 hrs 24 – 30 hours 32°F (0°C) 6 – 8 hrs 36+ hours F CAUTION Working around energized electrical systems may cause serious injury or death. Installation should be performed by personnel familiar with good safety practice in handling electrical equipment. De-energize and ground all electrical systems before installing product.
3M™ Scotchcast™ Flame-Retardant Electrical Insulating Resin 2131 4 of 4 Shelf Life & Storage 3M™ Scotchcast™ Flame-Retardant Electrical Insulating Resin 2131 has a 3-year shelf life from date of manufacture when stored in the factory-sealed packaging under humidity controlled storage (10°C/50°F to 27°C/80°F and <75% relative humidity). Availability Please contact your local distributor or call 1.800.245.3573. 3M and Scotchcast are trademarks of 3M Company. Important Notice All statements, technical information, and recommendations related to 3M’s products are based on information believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Any statements related to the product, which are not contained in 3M’s current publications, or any contrary statements contained on your purchase order, shall have no force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M. Warranty; Limited Remedy; Limited Liability This product will be free from defects in material and manufacture at the time of purchase. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above, your exclusive remedy shall be, at 3M’s option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for any direct, indirect, special, incidental or consequential loss or damage arising from this 3M product, regardless of the legal theory asserted. Electrical Markets Division 6801 River Place Blvd. Austin, TX 78726-9000 800.245.3573 Fax 800.245.0329 www.3M.com/electrical Please recycle © 3M 2015 All rights reserved 78-8129-9502-1 Rev D