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3M Scotchcast™ 253 Semiflexible Polyurethane Thixotropic Electrical Resin, 14 lb, Reddish-Brown

ID: 3MR25314LB Mfr ID: 3MR25314LB
Manufactured by: 3M Electrical OEM Materials
The thixotropic nature of the product renders it readily applicable by dipping, extrusion or trowelling in applications where resistance to running or sagging is a requirement. The properly cured product exhibits permanent flexibility, good adhesion, good thermal and mechanical shock resistance and good thermal conductivity.
Special Handling Required



USD $512.04 / KT

Buy more and save

2-3 $462.81 / KT
4-7 $422.21 / KT
8+ $359.19 / KT

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This item may be sold in units of 1.

  • Brand name :  3M
  • Trade Name :  Scotchcast™
  • Series :  Scotchcast™ 253
  • Item Name :  Polyurethane Thixotropic Electrical Resin
  • Short Desc :  RESIN,EPOXY,3M 253 14-LB KIT
  • UPC :  00054007345183
  • UNSPSC :  13111061

3M™ Scotchcast™ electrical resin 253 is a 100% solids, two-part, oven-curing, semiflexible, filled, brown, epoxy resin capable of operating continuously at 130 deg C.

Performance Details
Elongation 30% at Break 
Flexural Strength 7000  psi
Gel Time 23  min
Moisture Absorption 0.60% Weight Increase 240 hrs at 96% R.H 
Tensile Strength 1300  psi
Design & Construction
Color Reddish-Brown 
Form Liquid 
Cure Type Oven 
General Features
Type Semiflexible 
Environmental Condition
Temperature Rating 130  deg C
Electrical Properties
Dielectric Strength 375  V/Mil
Chemical Properties
Specific Gravity 1.5 
Mixing Ratio 1:2 (Weight), 30:70 (Volume %) 
Physical Properties
Hardness 65 Shore D 
Container Size 14  lb
Container Type Kit 

3M Scotchcast™ 253 Semiflexible Polyurethane Thixotropic Electrical Resin, 14 lb, Reddish-Brown Specification Sheet 

3M Scotchcast™ 253 Semiflexible Polyurethane Thixotropic Electrical Resin, 14 lb, Reddish-Brown Material Safety Data Sheet (MSDS) 

3M Scotchcast™ 253 Semiflexible Polyurethane Thixotropic Electrical Resin, 14 lb, Reddish-Brown Video URL 

Features :

  • Built-in permanent flexibility
  • Good mechanical and thermal shock resistance
  • Epoxy liquid resin
  • 12.6 x 10^-5 length/unit length/deg C coefficient of linear thermal expansion
  • 2500 psi compressive strength
  • Gel Time: 23 min at 120 deg C
  • Flash Point: A = 232 deg C, B = 177 deg C
  • Density: A = 13.85 lb/gal, B = 12.02 lb/gal
  • Temperature Rating: Class B (<=130 deg C)
  • Thermal Conductivity: 8 x 10^-4 Cal/sec/cm^2/deg C/cm

Applications :

  • Used are as a Conformal Coating for Coils, Transformers, Motors, Modules, Electrical and Electronic Components or Assemblies, and for Buttering Motor Turns