800-268-0568 ~ PROUDLY CANADIAN SINCE 1959 Authorized 3M Distributor
PROUDLY CANADIAN SINCE 1959 ~ Authorized 3M Distributor 1- 800-268-0568
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Soft, reenterable electrical encapsulant
3M™ Scotchcast™ Reenterable Electrical Insulating Resin 2123D is a flexible, two-part polybutadiene resin for protecting low-voltage cable splices and electrical assemblies. Its low viscosity and strong wetting characteristics help the mixed resin flow around components, fill enclosures, reduce voids, and form a soft seal that can later be removed for inspection, repair, or modification.
Resin 2123 is designed for electrical applications that need dependable sealing and insulation without permanently locking away the connection. The closed two-part pouch keeps the components separated until use, then provides a convenient way to mix and pour the resin at the jobsite.
The cured resin remains soft so protected splices and components can be accessed for future inspection, repair, or system changes.
Excellent wetting properties help the mixed resin fill an enclosure, surround components, and minimize air voids.
The polybutadiene construction bonds to nearly all cable jackets and provides multipurpose moisture sealing.
The two components are supplied in a closed, divided pouch for controlled mixing and direct pouring without separate containers.
The resin is formulated to bond to nearly all common cable jackets and to itself. Verify adhesion, electrical performance, re-entry method, enclosure compatibility, and environmental suitability in the completed assembly.
| Product type | Two-part, reenterable electrical insulating resin encapsulant |
|---|---|
| Resin chemistry | Polybutadiene |
| Package | Closed two-part mixing pouch |
| Package size | 21.2 oz (600 g) |
| Mixed colour | Translucent amber |
| Cure method | Room-temperature cure |
| Typical gel time | 62 minutes at 23°C (73°F), ASTM D2471 |
| Typical cure time | Approximately 24 hours at 21°C (70°F) |
| Typical hardness | 0 Shore A, ASTM D2240 |
| Typical elongation | 300%, ASTM D412 |
| Typical dielectric strength | Greater than 240 V/mil (9.5 kV/mm), ASTM D149 |
| Typical insulation resistance | Greater than 4 x 1011 ohms |
| Voltage rating | Up to 1 kV (0.6/1 kV class) |
| Maximum continuous-use temperature | 90°C (194°F) |
| Overload temperature rating | 130°C (266°F) |
| Compliance | RoHS 2011/65/EU and REACH compliant; tested to applicable ASTM and CENELEC HD 623.S1 / EN 50393 methods |
| Shelf life | 2 years from manufacture in factory-sealed packaging under specified storage conditions |
| Case quantity | 10 pouches |
| 3M catalogue number | 2123D |
| 3M stock number | 7000006197 |
| UPC | 00051128551219 |
| Country of origin | United States |
Technical values are representative or typical only and are not intended as minimum or maximum specifications. Cure, flow, adhesion, and electrical performance depend on temperature, mixing, substrates, enclosure geometry, cleanliness, and application conditions.
Danger: The current Canadian SDS classifies Part A as a respiratory sensitizer, skin sensitizer, and reproductive toxicant. Part B is classified as suspected of damaging fertility or the unborn child. Obtain special instructions before use and do not handle the components until all safety precautions have been read and understood.
De-energize and ground electrical systems before installation. Use appropriate engineering controls, avoid breathing fumes, wear protective gloves and other personal protective equipment required by the SDS and workplace assessment, and store the product locked up. Dispose of contents and packaging according to applicable regulations.
Always review the current product label, application instructions, and complete Safety Data Sheet for both components before handling or use.
Unlike a hard, rigid encapsulant, cured 2123 remains very soft and flexible. This allows a technician to remove the resin and access a protected splice or component for inspection, repair, or modification.
The typical gel time is 62 minutes at 23°C (73°F), and the technical data sheet lists a typical cure time of approximately 24 hours at 21°C (70°F). Actual timing varies with material and ambient temperature, mixing, resin mass, and application conditions.
The resin flows at low temperatures, but 3M instructs users to warm the unopened mixing pouch to at least 16°C (60°F) before mixing in cold weather. Keep it warm until ready to use and follow the pouch instructions.
No. The 3M pouch instructions state that the system must not be energized until the resin has hardened and is cool to the touch. De-energize and ground the system throughout installation and follow all applicable electrical safety procedures.
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