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Description for 3M Scotchcast Electrical Insulating Resin 2104
A hard two-part, polyurethane resin encapsulant designed especially for permanent splice protection. It is formulated with excellent wetting properties and low viscosity. Bonds to all modern cable jackets.Brand Scotchcast Application Type Encapsulant, Pottant / Encapsulant: Potting 1 Part or 2 Part 2-Part Material Form Liquid Substrate Aluminum, Copper, Metals, Neoprene, Nylon, Steel, Brass, XLPE, Vinyl Industry Formulated for virtually every electrical application, Designed especially for permanent splice protection, Potting printed circuit boards, Filling back shell connectors, Also used as the insulating material for cable splices, Potting for motor repairs, Potting cable or wire encasements, Also used as the insulating material for cable splices, Insulate between conductors of multi-core splices operating at 1000 volts or less, Bonds to all modern cable jackets, Potting junction boxes, Insulate between conductors of multi-core splices operating at 1000 volts or less, Seal the crotch or sheath when terminating multi-core cables, Potting cable fittings & splices, Potting cable fittings & splices, Also used as the insulating material for cable splices Manufacturer 3M Chemistry Polyurethane resin Cure Method 2-Part cure, Room temperature cure Cure Temperature (°C) 22, -4, 21, -7 Cure Time (min) Fast, <60, 1,200, 60, 1,200 Viscosity (cPs) Excellent wetting properties, Low Color Dark green High Temperature Resistance (°C) 90, 130 Durability Tough Density (g/cm³) 0.596 (oz/in3) Key Specifications Agency approvals & self certifications for RoHS, Agency approvals & self certifications for REACH -
Technical Data for 3M Scotchcast Electrical Insulating Resin 2104
Overview
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Application Type
- Pottant / Encapsulant - Encapsulant
- Pottant / Encapsulant : Shallow Potting - Potting
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1 Part or 2 Part
- 2-Part
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Material Form
- Liquid
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Industry
- Electronics - Formulated for virtually every electrical application, Potting junction boxes
- Printed Circuit Board (PCB) - Potting printed circuit boards
- Connectors - Filling back shell connectors
- Industrial - Multi-purpose
- Splicing - Designed especially for permanent splice protection, Also used as the insulating material for cable splices, Insulate between conductors of multi-core splices operating at 1000 volts or less, Potting cable fittings & splices
- Insulation - Insulate between conductors of multi-core splices operating at 1000 volts or less, Also used as the insulating material for cable splices
- Motors - Potting for motor repairs
- Cable - Seal the crotch or sheath when terminating multi-core cables, Potting cable fittings & splices, Also used as the insulating material for cable splices, Bonds to all modern cable jackets, Potting cable or wire encasements
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Chemistry
- Polyurethane - Polyurethane resin
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Cure Method
- Room Temperature / Air Dry - Room temperature cure
- 2-Part Cure
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Color
- Green - Dark green
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Key Specifications
- RoHS (Restriction of Hazardous Substances) - Agency approvals & self certifications for RoHS
- REACH - Agency approvals & self certifications for REACH
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Brand
- Scotchcast
Specifications
Cure Specs
Cure Temperature (°C) 22, -4, 21, -7 Test Method Cure Time (min) Fast, <60, 1,200, 60, 1,200 Test Method Viscosity (cPs) Excellent wetting properties, Low Test Method Set Time (min) 18 Test Method Mix Ratio 1.04:1 (by volume), 1:1 (by weight) Bond Strength
General Bond Strength (psi) 411.6 (lb/in2), 285.1 (lb/in2), 558 (lb/in2), 207.03 (lb/in2), 10.5 (lb/in2), 140.8 (lb/in2), >25.5 (lb/in2), 221.5 (lb/in2) Test Method Tensile Strength (psi) 444 Test Method Material Resistance
High Temperature Resistance (°C) 90, 130 Moisture/Humidity Resistance Excellent moisture sealing resin Conductivity
Dissipation Factor 4.1%, 0.00000 to 0.00000 9.1%, >200% Test Method Dielectric Strength (V/mil) Electrical insulating, 524 Test Method Dielectric Constant 3.80, 4.59, 6.80 Test Method Hardness
Durability Tough Shore A Hardness 70 Test Method Elongation (%) 98 Test Method Flexibility Semi-flexible Other Properties
Glass Transition Temp (Tg) (°C) -70 Test Method Density (g/cm³) 0.596 (oz/in3) Test Method Business Information
Shelf Life Details Scotchcast 2104 resin is stable for a period of one year from date of manufacture providing the Guard Bag (the white aluminized bag) is not opened when stored under the following recommended storage conditions. Store behing present stock in a clean dry place at a temperature of 70°F (21°C) and 40 to 50% relative humidity. Good stock rotation is also recommended. If the guard bag is removed, the shelf life could be reduced to as little as two hours under conditions of high humidity. Scotchcast 2104 is not impaired by freezing: however it should be warmed to at least 32°F (0°C) before being mixed or poured., 3M™ Scotchcast Electrical Insulating Resin 2104 has a 2-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). Shelf Life Temperature (°F) 70, 50 to 81 Shelf Life Type From date of manufacture, From date of manufacture Shelf Life (mon) 12, 24 -
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Best Practices for 3M Scotchcast Electrical Insulating Resin 2104
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Mixing
Available in two-part closed mixing pouch for easy mixing and pouring.
General Instructions: Closed Mixing Pouch: Tear open the protective envelope and remove the closed mixing pouch
Before breaking the barrier, squeeze 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 2 minutes, 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.
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Cure Temperature Test Methods
Cure Temperature | Cure Time Test Method |
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22°C | |
-4°C | Approximate, NOTE: Values are typical, not to be considered minimum or maximum. |
21°C | Approximate, NOTE: Values are typical, not to be considered minimum or maximum. |
-7°C |
Cure Time Test Methods
Cure Time | Test Method |
---|---|
Fast | |
<60 min | |
1,200 min | Approximate, NOTE: Values are typical, not to be considered minimum or maximum. |
60 min | Approximate, NOTE: Values are typical, not to be considered minimum or maximum. |
1,200 min |
Set Time Test Methods
Set Time | Set Temperature | Test Method |
---|---|---|
18 min | 23°C Room temperature | (ASTM D2471-99) |
Viscosity Test Methods
Viscosity | Test Method |
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Excellent wetting properties | (3M Method TM-173), Prepolymer |
Low |
General Bond Strength Test Methods
General Bond Strength | Cure Temperature | Substrate | Test Method |
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411.6 (lb/in2) | 23°C | Copper | Adhesion to metals, (3M TM-456) |
285.1 (lb/in2) | 23°C | Brass | Adhesion to metals, (3M TM-456) |
558 (lb/in2) | 23°C | Steel | Adhesion to metals, (3M TM-456) |
207.03 (lb/in2) | 23°C | Aluminum | Adhesion to metals, (3M TM-456) |
10.5 (lb/in2) | 23°C | Vinyl | Adhesion to metals, (3M TM-456) |
140.8 (lb/in2) | 23°C | Neoprene | Adhesion to metals, (3M TM-456) |
>25.5 (lb/in2) | 23°C | Nylon | Adhesion to metals, (3M TM-456) |
221.5 (lb/in2) | 23°C | XLPE | Adhesion to metals, (3M TM-456) |
Tensile Strength Test Methods
Tensile Strength | Cure Temperature | Test Method |
---|---|---|
444 psi | 23°C Room temperature | ASTM D-412 |
Dielectric Constant Test Methods
Dielectric Constant | Temperature | Test Method |
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3.80 | 23°C | ASTM D-150, 1000 Hz |
4.59 | 23°C | ASTM D150 @ 60Hz |
6.80 | 90°C | ASTM D150 @ 60Hz |
Dielectric Strength Test Methods
Dielectric Strength | Test Method |
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Electrical insulating | |
524 V/mil | ASTM D149 |
Dissipation Factor Test Methods
Dissipation Factor | Temperature | Test Method |
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4.1% | 23°C | ASTM D-150, 1000 Hz |
0.00000 to 0.00000 9.1% | 23°C | ASTM D150, @ 60Hz |
>200% | 90°C | ASTM D150, @ 60Hz |
Elongation Test Methods
Elongation | Test Method |
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98 % | ASTM D-412, At room temperature 73°F |
Shore A Hardness Test Methods
Shore A Hardness | Shore Hardness Test Method |
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70 | ASTM D-2240, At room temperature 73°F |
Density Test Methods
Density | Temperature | Test Method |
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0.596 (oz/in3) | 23°C Room temperature | ASTM D792 |
Glass Transition Temp (Tg) Test Methods
Glass Transition Temp (Tg) | Glass Transition Temperature (Tg) Test Method |
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-70°C | ASTM E1356-03, At room temperature 73°F |

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