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SmokeShield® ZS is a finer-particle-size flame retardant and smoke suppressant for flexible PVC and halogenated polyester resins.
SmokeShield® ZS is a smoke suppressant and flame retardant agent characterized by its smaller particle size than SmokeShield® ZB4. Zinc stannate (ZS) has notable efficacy in halogenated polymers, with a particular emphasis on its role as a char-forming agent in polyvinyl chloride (PVC). SmokeShield® ZS is employed as a substitute for antimony trioxide in the context of flexible PVC and halogenated polyesters.
Appearance: Fine powder
Color: White to off-white
Tin content: 40% to 43%
CAS number:12027-96-2
Zinc content: 20% to 23%
Moisture: <0.5%
Particle size, D50: 1 to 3 microns
Primary Chemistry: Zinc hydroxystannate
Fine particle size
Antimony trioxide replacement
Flame retardancy and smoke suppressant
Large particle size and formulation difficulties of commercially available smoke suppressants
Alternative for antimony trioxide for use as a smoke suppressant
Flexible PVC
Halogenated polyesters
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