TEGOMER® V-Si 4042

TEGOMER® V-Si 4042 by Evonik is polysiloxane-based crosslinking agent and process aid. It enhances the flame retardant properties of the compound and used to produce halogen free flame retardant polyolefin and elastomeric compounds for cable application.

• It helps to improve the extrusion of EPM/EPDM compounds without changes in physical properties of the rubber article.
• TEGOMER® V-Si 4042 offers improved polymer processing and lubrication of polymer resin, excellent compatibilizing of (high addition levels of) inorganic fillers in the polymeric resin.
• It also provides improved melt flow rates during processing, excellent surface characteristics of cables, no build-up of process aid on metal surfaces and no die drol appears, excellent char formation, low heat and smoke release and significant improved lower oxygen index.
• The recommended dosage for TEGOMER® V-Si 4042 is 0.5-2.0 wt% depending on the polymer and the amount of mineral fillers or carbon black.