Pvc Stabiliser

  We are instrumental in providing a special range of PVC Stabilizers. In order to gat assured of the quality of these stabilizers, we source these from the trusted and certified vendors of the market. These chemicals are formulated by creating chemical reactions into highly specialized applications.   These stabilizers are found in white powder form and are highly stable under various conditions. One pack stabilisers are versatile and help in improving the heat stability of PVC products.

Lead is a through drier and is always used with cobalt and or manganese. Lead drier improves the drying time of double boiled linseed oil and yields very pale and clear boiled oil. Lead in combination with cobalt and calcium are suggested, particularly for long oil alkyds lead is the most important drier. However some of the problems connected with lead driers such as Sulphur staining and reaction with polybasic acids are overcome by inclusion of calcium drier. As lead is toxic in nature its usage in toys and edible film packaging is to be avoided.

As quantity of Cobalt Drier used is very small, it minimizes discoloration in paints & enamels as compared with other Driers. Cobalt does not discolor white paints as the deep blue color of the cobalt counteracts the yellow of the oils & resins & thereby enhances the whiteness of the paint. The unique feature of cobalt is that it is least affected by atmospheric humidity. Cobalt is an effective accelerator for polyester.

Manganese driers are intermediate in activity & they have both oxidizing & polymerizing properties. When manganese used alone it may produce too hard & too brittle films. When used in combination with Lead, hard tough & durable films are produced. One disadvantage in use of manganese driers is their relative dark color, which has a tendency to discolor white or light finishes.

Zirconium is a most useful & efficient auxiliary drier. Zirconium like lead serves as a through drier & is generally used in combination with Cobalt, Manganese & Calcium. Unlike Lead, Zirconium is a poor pigment wetting & dispersing agent. Zirconium is an active cross-linking agent & as such improves hardness of stoved films as well as their adhesions.

In vehicles that show poor tolerance for lead, calcium can replace part of the lead with a larger amount of calcium to prevent the precipitation of the lead & maintain drying efficiency.

  Cobalt is an extremely active & most widely used drier in coatings & capable of being used even as a single Drier. It is primarily an oxidation catalyst & acts as a " Surface Drier ". It may have a tendency to cause surface wrinkling, hence to provide uniform drying. Cobalt is generally used in combination with other metals, such as Manganese, Zirconium, Calcium & Combinations of these metals. As quantity of Cobalt Drier used is very small, it minimizes discoloration in paints & enamels as compared with other Driers. Cobalt does not discolor white paints as the deep blue color of the cobalt counteracts the yellow of the oils & resins & thereby enhances the whiteness of the paint. The unique feature of cobalt is that it is least affected by atmospheric humidity. Cobalt is an effective accelerator for polyester.