BroShield® RB4D-LV is a low viscosity, high-purity reactive diol for use in urethane foam as an effective flame retardant.
St. Louis Group BroShield®  RB4D-LV is a low-viscosity reactive liquid diol additive typically used in Class 1 and Cass 2 rigid polyurethane foam. It has excellent compatibility with polyols and blowing agents. BroShield®  RB4D-LV is also used in injection-molded urethane, coatings, adhesives, textiles, and fibers.  BroShield®  RB4D-LV is a brominated flame retardant used to effectively prevent, contain, or slow down the spread of fire or smoke in polyurethane materials.Â
Form: Liquid
Color: Light brown Â
Bromine: 43%
Viscosity, @ 25°C: 20,000 to 30,000 cps
Moisture: ≤ 0.20%
Acid Value (mg KOH/g) ≤ 0.25
Specific Gravity @ 25°C, g/ml: 1.7
Hydroxyl Number (mg KOH/g): 210-275
Low viscosity
Excellent compatibility
Availability of diols in low viscosity form for easy use in urethane foam applications
Compatibility of flame retardants with polyols and blowing agents in PU formulations
Polyurethane Foam:Â Class 1 & 2 RigidÂ
Elastomers
Coatings
Adhesives
FurnitureÂ
Consumer Products
Flame retardants are reactive chemicals used as additives in combustible polymers to prevent, delay, or slow down combustion.
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