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

Albemarle SAYTEX 621 Brominated Polystyrene Flame Retardant

Albemarle SAYTEX 621 is a premium brominated polystyrene flame retardant delivering superior fire protection for engineering plastics. This low-dust pellet formulation combines 64.6% bromine content with excellent processing characteristics, making it particularly effective for thin-walled PBT components. Its non-blooming nature and thermal stability ensure long-term performance in demanding applications while meeting strict environmental standards as a decabromine-free solution.

Features Of Albemarle SAYTEX 621 Brominated Polystyrene Flame Retardant

  1. Optimal Protection - 64.6% bromine content for maximum flame retardancy

  2. Enhanced Processability - Low viscosity for complex mold filling

  3. Material Integrity - Preserves PBT's mechanical strength

  4. Surface Quality - Prevents blooming in finished products

  5. Sustainable Choice - Environmentally compliant formulation

Typical Applications Of Albemarle SAYTEX 621 Brominated Polystyrene Flame Retardant

  1. Electronic Housings - Connectors and sockets

  2. Automotive Components - Sensor housings and brackets

  3. Electrical Systems - Switchgear and circuit breakers

  4. Industrial Parts - Pump components and valves

  5. Consumer Products - Power tool casings

Specifications Of Albemarle SAYTEX 621 Brominated Polystyrene Flame Retardant

Appearance
White to off - white pellets
Bromine Content (Theoretical)
64.6%
Softening Point
220°C
Glass Transition Temperature (Tg)
164°C
Bulk Density
73.5 lb/ft³ (1180 kg/m³)
Solubility in Water (by weight at 25°C)
<1.0%
Solubility in Methanol (by weight at 25°C)
<1.0%
Solubility in Toluene (by weight at 25°C)
52.0%
Solubility in Styrene Monomer (by weight at 25°C)
49.4%
1% Weight Loss Temperature (TGA, N₂, 10°C/min)
347°C
5% Weight Loss Temperature (TGA, N₂, 10°C/min)
379°C
10% Weight Loss Temperature (TGA, N₂, 10°C/min)
388°C
50% Weight Loss Temperature (TGA, N₂, 10°C/min)
412°C


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *