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Polymer Additives

STS - 2

Technical DataSheet | Supplied by S V Plastochem

STS - 2 by S V Plastochem is an organo octyl tin mercaptide stabilizer found in the form of clear light yellow liquid. Provides outstanding light stability and maintains initial colors. It is an effective heat stabilizer for crystal clear applications and requires lower doses compared with other stabilizers. It is mainly used for food grade purposes such as PVC bottles, jar and films in food packaging and pharmaceutical products packaging and blisters. Suitable for PVC sheets, blow molding, rigid films, injection molding, calendaring and extrusion. It can be utilized for higher temperature processings. It is soluble in almost all organic solvents and insoluble in water. Recommended dosage of STS - 2 is 1.5 – 3 PHR for rigid and semi-rigid applications and 0.8 – 2 PHR for flexible and plasticized applications.

STS - 2 Product details

Product Type
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Chemical Composition
CAS Number
Physical Form
Clear light yellow
Product Status
Applications/ Recommended for
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STS - 2 Properties


Value & Unit
Test Condition
Test Method
Tin Content
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Specific Gravity (at 25º C)
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Refractive Index
Last edited Dec 3, 2017
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