Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Albemarle Saytex RB-49 Brominated Flame Retardant

Albemarle Saytex RB-49 is a brominated flame retardant belonging to the Saytex series, specifically formulated as a reactive tetrabromobisphenol-A diglycidyl ether for epoxy resin systems. It delivers high bromine content (≈53%), excellent thermal stability, and low volatility while maintaining good compatibility and processing performance in printed circuit board laminates and electrical encapsulants.
  • albemarle saytex rb 49 brominated flame retardant_f0497e07
  • albemarle saytex rb 49 brominated flame retardant_f0497e07

Features Of Albemarle Saytex RB-49 Brominated Flame Retardant

  1. High bromine content (≥68% Br) for efficient flame inhibition in thermoplastics.

  2. Excellent thermal stability, enabling processing at temperatures up to 240 °C without significant decomposition.

  3. Good compatibility with engineering resins including ABS, HIPS, and PC/ABS blends.

  4. Low volatility and minimal plate-out tendency during extrusion and injection molding.

  5. Compliant with UL 94 V-0 rating requirements when formulated at appropriate loadings.

Typical Applications Of Albemarle Saytex RB-49 Brominated Flame Retardant

  1. Flame-retarded ABS for consumer electronics housings.

  2. HIPS used in office equipment and appliance components.

  3. PC/ABS blends for automotive interior trim parts.

  4. Electrical enclosures requiring UL 94 V-0 or V-1 performance.

  5. Power tool housings and other durable goods demanding balanced mechanical and fire performance.

Specifications Of Albemarle Saytex RB-49 Brominated Flame Retardant

Chemical TypePolybrominated tetrabromobisphenol-A bisallyl ether
Product FormFree-flowing white to off-white granules
AppearanceGranular, non-dusting, uniform particle size
Bromine Content≥68.0 wt% (by XRF)
Onset Decomposition Temperature (TGA, 5 °C/min, N₂)≥270 °C
Melt Flow Index (220 °C / 5 kg)Not applicable (non-melting solid)
Density2.2–2.3 g/cm³
Moisture Content<0.1 wt% (Karl Fischer)


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