StarSil™ AC 1083

Product Description
StarSil™ AC 1083 is a new highly efficient silicone-antifoam compound. StarSil™ AC 1083 is a nonaqueous solvent-free 100% silicone base with improved long-term foam control efficiency. It was specially developed for use in a wide range of industrial applications ranging from pulp processing, textile dyeing, and wastewater treatment. StarSil™ AC 1083 has significant foam knockdown and excellent sustaining antifoam performance.
Product Attributes
  • Free rinsing (when emulsified efficiently)
  • Long-lasting defoaming & antifoaming properties
  • Nonionic
Product Applications
StarSil™ AC 1083 acts primarily as an antifoam base for formulated defoamers and antifoams that can be added at various stages during pulp manufacturing. When emulsified StarSil™ AC 1083 rinses clean and does not have the detrimental effect of silicone deposits and residues.
Regulatory Status


  • 21 CFR 176.210
  • 21 CFR 176.170
  • 21 CFR 176.180


The ingredients are exempt from tolerances listed below:

  • 40 CFR 180.910
  • 40 CFR 180.920
  • 40 CFR 180.960 

Typical Properties

Off-white viscous liquid


~3,500 cp

pH (100%)


% Activity


Solubility in Water


Other Information

Standard Packaging

Drum: 440 lbs / Tote: 2200 lbs

International Inventories

USA (TSCA), Canada (DSL), Europe (EINICS), Korea (ESL), Japan (ENCS), Australia
(AICS), Philippines (PICCS), China (IECSC), and New Zealand (NZloC)


Not Biodegradable


StarSil AC 1083 is considered nontoxic
Emulsifier Recommendations
Emulsifier to Compound Ratio: 1:4 / (HLB : 11 to 13)
Tween 80 and 85
Polysorbate 60
SMS, MS-40, MS 20

Storage Conditions

StarChem™ TOD 60 has a shelf life of at least twelve months from the date of delivery; if stored in original, unopened containers at temperatures not exceeding 40°C. Continued storage beyond the designated shelf life does not necessarily mean the material cannot be used. However, renewed testing of the most important properties is imperative.