Products

Cel-Span® UVS 717 is a (HALS) concentrate containing a stabilizer package for injection blow molding, extrusion and film applications for polyethylene. Hindered Amine Light stabilizers are the most effective light stabilizers for polyolefins. HALS is extremely efficient because these special additives continuously repopulate themselves during the UV stabilization process.

Cel-Span® S 100 is a compounded additive for color stabilization and dispersion. A unique proprietary compounding technique makes it possible to pelletize the entire active stabilizer and dispersant in the formulation without adding additional heat history. Cel-Span® S 100 should be utilized at 0.25% to 1% consistently during the color concentration manufacturing processes for stabilization and dispersion. Cel-Span® S 100 also lessens degradation of pigments and enhances the brightness of color concentrates. The pigment is initially dispersed by dispersing agents in order to prevent the formation of uncontrolled flocculates; a process of contact and adhesion whereby the particles of dispersion form larger-size clusters. Stability of dispersion is a result of interplay of the heat (kinetic) energy of particles, attractive inter-particle forces, and repulsive forces; this also helps to limit short-range Van der Waals forces.

Cel-Span® S 310 is a compounded antioxidant concentrate in HDPE & LLDPE blends to provide thermal stabilization to polymers at high temperatures and during routine maintenance shut-down procedures. Cel-Span® S 310 is an effective shut down stabilizer for all polyolefin resins. It is used to protect these materials from thermal degradation during exposure to processing temperatures maximizing the inherent physical properties of the natural resins. When used at a 5-10% level, Cel-Span® S 310 can be left in extruders, dies, and other process equipment during routine maintenance “shut down and start up” procedures, to prevent unwanted polymer degradation, and help keep the process equipment clean and free of black specs and degradation.