Typical 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 * Typical Value US units (metric) Hardness (Shore D
- ) 80 Specific Gravity (cured)3 1.55
- Compressive Strength6 10%
- Compression 5500 psi @ 10% (38.,7 kg/cm2 )
- Tensile Strength2 Ultimate 3700 psi (260,1 kg/cm2 )
- Elongation (% at break)5 12
- Flexural Strength7 3500 psi @ 5% (246.1 kg/cm2 )
- Thermal Conductivity4 Cal • cm/cm2 • sec • °C Watt/m • k @ 29 °C 11.1 x 10-4 0.463
- Glass Transition Temp (Tg) 22ºC
- Linear Thermal Expansion (LTE)9 (length/unit length/°C) Tg .57 x 10-4 1.65 x 10-4
- Thermal Shock1 10 cycles -65 to 155ºC 1/8” (3,165 mm)
- Olyphant Insert Pass Thermal Shock 1 10 cycles – 55 to 130°C ¼” (6,35 mm)
- Olyphant Insert Fail Flame Retrdancy2 Self-Extinguishing Fungus Resistance10 Fungus Resistant Rating: 2
Description
3M™ Scotchcast™ Electrical Resin MR283FO75 is a filled, epoxy resin system offering
excellent physical, electrical and thermal properties. The filler, used in electrical resin
MR283F075, is designed to minimize shrinkage and stresses, and provide increased
thermal conductivity and thermal shock resistance. Applications include impregnation
and encapsulation of coils, transformers, motors and other electrical and electronic
components.
• Thermal shock resistant
• Hydrolytically stable
• Temperature rating – Class B or F
