3M™ Scotchcast™ Electrical Resin 281
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Details
Highlights
- 65 Shore D hardness
- 22 minute gel time at 121°C (250 °F)
- Useful for coating coils, transformers, motors, modules, electrical and electronic components
- Temperature rated Class F (155˚C)
- Elongates 45% longer than its original size for easy insulation or wrapping
- Chemical and moisture resistant
3M™ Scotchcast™ Electrical Resin 281 is a 2 part, oven curing, liquid resin that is used for electronic and electrical applications requiring the highest level of protection. This filled epoxy based resin has a low viscosity and impregnating property, making it easy to infuse on most surfaces. It is useful for applications that include filling, patching, insulating and more.
3M™ Scotchcast™ Electrical Resin 281 has a low gel point rating to ensure a quick curing process when kept in warm environments. The high tensile strength of the resin exhibits a semi flexible and good adhesion property after curing. It is ideal for applications that need excellent thermal shock and mechanical shock resistance. Its high dielectric strength offers excellent electrical insulating property to the resin. It has a high flash point, helping prevent any fire hazard due to quick ignition. Since the resin exhibits a hydrolytic stability property, it minimizes quick chemical decomposition, thus providing long lasting usage. RoHS EU 2015/863 Compliant.
Typical properties
| Base Polymer | Epoxy |
| Cure Method | Oven |
| Cure Temperature | >75 Degree Celsius |
| Dielectric Strength (V/mil) | 350 V/mil |
| Elongation | 45 % |
| Flame Retardant | No |
| Flammability Rating | Not Self Extinguishing |
| Flexibility | Semi-flexible |
| Gel Time | 22 min @ 250 °F (121 °C) |
| Hardness | 65 Shore D |
| Material | Epoxy |
| Maximum Operating Temperature (Celsius) | 155 ℃ |
| Mining Sector Approval | No |
| Mix Ratio | Wt 2:3 Vol (%) 37:63 |
| Mixed Viscosity | Medium (10,000-75,000 cpi) |
| Product Color | Cream |
| Product Type | Electrical Resin |
| Resin Cure | Oven Cure Filled Resins |
| Resin Matrix | Filled |
| Storage Time in Months | 24 |
| Temperature Rating | Class F (<=155 deg C) |
| Tensile Strength (Imperial) | 2100 Pound-Force Per Square Inch |
| Thermal Conductivity | High (>0.40 W/m-K) |
Resources
Safety Data Sheets
Document Number: MSDS_2658045_US_EN
(PDF)
Safety Data Sheets
Document Number: MSDS_2040301_US_EN
(PDF)
Safety Data Sheets
Document Number: MSDS_2040475_US_EN
(PDF)
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Similar products
| Cure Method | Oven | |||
| Flexibility | Semi-flexible | |||
| Resin Matrix | Filled | |||
| Material | Epoxy |
3M™ Scotchcast™ Electrical Resin 281
3M™ Scotchcast™ Electrical Resin 226Legal disclaimer
The designation that a product is Manufactured in the USA means the product undergoes substantial transformation in one of our U.S. Manufacturing plants. Some products contain imported components.
Note: 3M products offered on a government contract that require country of origin representation must be certified by 3M Trade Compliance. Contact customer service at 800-245-3573 to request a certificate.
For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
