What is actistab?

Answer 1

Actistab is a brand name for Potassium Sorbate. Essentially it is a preservative. It is used in winemaking to prevent fermentation in sweet wines. These wines tend to start fermenting again in the bottle. This is usually prevented by doing a sterile filtration on the wine (takes out all yeast cells) but some winemakers do not have that option (home winemaking or garagiste winemaking). Others believe that such a filtration strips the wine of flavour and opt for 'Actistab'. Hope this answers your question!

Answer 2

Actistab is a trademarked name for a range of heat stabilizers used in the plastics industry. These additives help prevent degradation of plastics during processing and end-use applications by protecting them from heat and oxidation. Actistab products are designed to improve the thermal stability of plastics such as PVC, polyolefins, and other polymers.