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Star Technology BC-28 Balancing Compound, 2 lb Kit, Blue/Yellow

Manufactured by: Star Technology
BC-28 is a two-part epoxy balancing compound for use in weight addition balancing of electric motor armatures. BC-28 has a smooth, fibrous, putty-like consistency, which keeps the compound from migrating during the balancing process. The two-parts of the putty, parts A and B, are mixed 1:1 by volume or by weight. The Blue Part A and the Yellow Part B are easily mixed by hand until the color is a consistent green.

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USD $38.16 / KT

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1-15 $38.16 / KT
16+ $35.28 / KT

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This item may be sold in units of 1.

  • Brand name :  Star Technology
  • Series :  BC-28
  • Item Name :  Balancing Compound
  • UNSPSC :  31201607

The BC-28 may then be placed on the motor armature as indicated until the armature is in balance. The working life of the mixed BC-28 is less than 1 hr depending upon mass and temperature. Overnight, BC-28 cures to a solid, which resists moisture and solvents. Mixed material can be frozen to slow cure during an 8 hr period.

Design & Construction
Cure Type Moisture Cure 
Form - Part-A Liquid 
Color - Part-A Blue 
Color - Part-B Yellow 
Performance Details
Full Cure Time 12 hr 
Open Time 1 hr 
Shear Strength 1000 psi 
Tensile Strength 1700 psi 
Chemical Properties
Composition - Part-A Epoxy Resin 
Specific Gravity - Part-A 2.5 
Specific Gravity - Part-B 2.5 
Physical Properties
Container Size 2 lb 
Container Type Kit 
Hardness 85 Shore D 
Odor/Scent - Part-A Epoxy 

Star Technology BC-28 Balancing Compound, 2 lb Kit, Blue/Yellow Technical Data Sheet 

Features :

Applications :

  • For Weight Addition Balancing of Electric Motor Armatures, Rotors, and Fans