User manual 3M SCOTCHCAST ELECTRICAL AND ELECTRONIC RESINS

[. . . ] Besides evaluating the property values and product descriptions in the chart on pages 4 and 5, consider the following: · Does the resin selected meet the requirements of the application?· What problems have existed with other methods or products which have been used or evaluated?· Which application process is best suited for the product selected?· Can the part, by virtue of its size and configuration, be coated using this process? [. . . ] However, smaller parts may lose so much heat during coating that they require a postcure to obtain full cure. The time/temperature relationships necessary to obtain full cure are given in the chart and on individual product information sheets. These time/temperature relationships do not include the time necessary to heat or reheat the part to the curing temperature. The user must make this determination and start the time cycle when the temperature is reached. UL Insulation Systems Insulation systems established per UL 1446 and IEC requirements are available for various Scotchcast resins up to class H (180°C). The major system components include Scotchcast resin as integral ground insulation, magnet wire, interlayer insulation, and molding material. "Minor" components such as 3M Electrical Tapes, sheet insulation, tie cords, lead wires, varnish, etc. have been added, making the 3M Electrical Insulation Systems ideal for most applications. Please refer to the separate Scotchcast Electrical Insulation Systems brochure for additional details. Many Scotchcast powder resins are also recognized by UL as component insulation of class B per UL 746B. 3 Powder Resins Typical Property Data Temp Class B F H Product Number 260 260CG Description This widely used, well known product is used primarily in spray and fluid bed dip applications. This resin has excellent flow characteristics which produce a uniform coating in applications such as resistance heated bobbin wound coils. 263 is used primarily in spray and fluid bed dip applications and has been designed for use where high temperature cut-through resistance is required. Low melt viscosity and minimum build make this unfilled powder ideal for a variety of coating, bonding and impregnating applications, notably coating from a solvent. 266 is specially formulated for application using the electrostatic fluid bed or spray process, but can be used with conventional fluid beds also. It is similar in color to 3MTM ScotchcastTM 260 resin and features improved impact resistance. This product accepts a charge very easily, which makes it ideal for electrostatic coating techniques. This product is designed to permit the thin coating of cold as well as heated parts such as capacitor cans, transformer covers, and resistors. 5230N has superior charging capabilities and is designed to provide smooth uniform coatings using the electrostatic fluid bed application method. Formulated specifically for use in the electrostatic fluid bed process, 5388 provides superior cut-through resistance as well as excellent heat, chemical and moisture resistance. UL System 1446 Approval File Number E163090 Cure Schedules (Temp/Time) 149°C (300°F) 30 min 177°C (350°F) 10 min 204°C (400°F) 45 sec 232°C (450°F) 20 sec B 262 149°C (300°F) 40 min 177°C (350°F) 20 min 204°C (400°F) 60 sec 232°C (450°F) 30 sec B F H B 263 149°C (300°F) 30 min 177°C (350°F) 10 min 204°C (400°F) 30 sec 232°C (450°F) 20 sec 149°C (300°F) 60 min 177°C (350°F) 20 min 204°C (400°F) 5 min 232°C (450°F) 2 min 177°C (350°F) 5 min 204°C (400°F) 150 sec 232°C (450°F) 50 sec 265 B 266 B 5133 149°C (300°F) 30 min 177°C (350°F) 10 min 204°C (400°F) 30 sec 232C (450°F) 20 sec F 5230N 177°C (350°F) 15 min. [. . . ] Contamination of powder (moisture, etc. )/ Check air lines for oil, water, etc. Keep containers closed and away from moisture. 6 The 3M Edge In addition to the high standard of quality that goes into Scotchcast Resins, 3M customers receive other important value-added benefits. Manufacturing, customer service and technical resources are dedicated to making service, quality and delivery easier when working with 3M and its products. In constant communication with its distributors and customers, 3M maintains an innovative approach to resin systems to meet present and future electrical/electronic requirements, ensuring product quality, consistency, and performance effectiveness. Customer Service 3M's nationwide distributor network provides prompt, efficient product delivery in response to all your electrical and electronic materials requirements. [. . . ]