Kukdo SMB-405 is a premium high-bromine flame-retardant epoxy resin in SMB series, designed for high-end electronic packaging and flame-retardant composites. It features intrinsic flame retardancy, excellent thermal stability and adhesion, suitable for electronics and high-end manufacturing.
High-bromine intrinsic flame retardancy - Chemically grafted bromine, high and long-lasting flame retardant efficiency without additional agents
Excellent thermal & light stability - Strong thermal stability and light aging resistance, stable long-term service performance
Good mechanical adaptability - Balanced toughness and hardness after curing, endowing substrates with excellent mechanical properties
Wide system compatibility - Compatible with most amines and anhydrides, flexible formula adjustment
Low migration & anti-blooming - Stable performance without migration, no blooming on end-product surface
Electronic component packaging - Flame-retardant encapsulation and insulation protection for semiconductors and circuit boards
Flame-retardant composites - Matrix resin for glass fiber reinforced flame-retardant composites, suitable for rail transit and auto parts
High-end copper-clad boards - Flame-retardant modified component to improve flame-retardant grade and electrical performance
Flame-retardant adhesives - Structural bonding in electronics industry with both adhesion and flame-retardant functions
| Appearance | Light Yellow to Yellow Powder or Granule |
| Type | Brominated Epoxy Resin (Brominated Bisphenol A Type) |
| Bromine Content (%) | 48-52 |
| Epoxy Equivalent (g/eq) | 400-430 |
| Softening Point (℃) | 105-115 |
| Hydroxyl Value (mgKOH/g) | ≤50 |
| Volatile Content (%) | ≤1.0 |
| Color (Gardner) | ≤2 |
| Density (20℃, g/cm³) | 1.40-1.45 |
| Flame Retardant Rating (UL94) | V-0 |
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China