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Applications SAYTEX BT-93W flame retardant provides premium performance in a wide
range of applications. It finds use in polyolefins, high-impact polystyrene (HIPS),
thermoplastic polyesters (PBT, PET,etc.), polycarbonate and elastomers.
Additional information on the use of SAYTEX BT-93W flame retardant may be found
in the following Technical Bulletins, which are available from Albemarle:
? Flame Retardant Comparison in Glass-Filled Polybutylene Terephthalate
? Flame Retarding Elastomers
? Introduction to Flame Retarding Polyolefins
? Status of Regulatory Activity on Brominated Flame Retardants
Benefits and Features SAYTEX BT-93W flame retardant has outstanding thermal and UV stability. Its
white color allows use in color-sensitive applications. Its thermal stability allows
use in engineering resins like polyesters and polyamides. SAYTEX BT-93W flame
retardant is also non-blooming. This feature allows use in such critical applications
as polyolefin films where good heat sealability is required. Its excellent wet electrical
properties also make it ideal for wire and cable applications.
Typical Properties % Bromine (theoretical)......................................................................................... 67.2
Melt range (°C)....................................................................................................... 460
Molecular weight ................................................................................................ 951.5
Appearance / form ................................................................................ white / powder
Specific gravity...................................................................................................... 2.77
Dielectric constant (1 MHz) ................................................................................... 1.17
Dissipation factor (1 MHz) ..................................................................................... 0.03
Bulk density (Hosokawa powder tester, lb/ft3, [kg/m3])
Packed ...................................................................................................... 55 [875]
Aerated ...................................................................................................... 30 [474]
Average particle size (μ) ........................................................................................ 2.81
Refractive index .................................................................................................... 1.79
Solubility (weight % at 25°C)
Water............................................................................................................ < 0.01
Acetone........................................................................................................ < 0.01
Methanol ...................................................................................................... < 0.01
Toluene ........................................................................................................ < 0.01
TGA (TA Instruments, model 2950, 10°C/min under N2)
1% weight loss ............................................................................................. 336°C
5% weight loss ............................................................................................. 410°C
10% weight loss ........................................................................................... 426°C
50% weight loss ........................................................................................... 457°C
90% weight loss ........................................................................................ > 600°C
These properties are typical but do not constitute a specification either in part or as a whole.
Specification data is available on request from sales, customer service or customer technical
service.