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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
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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