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Momentive Tospearl™ 3120 is a spherical microfine silicone resin used for plastic film applications as an antiblocking agent and improves extrusion processes for various thermoplastic materials. Tospearl™ 3120 is 12 microns in particle size, allowing for controlled consistency and distribution for polyolefin film resin.
Tospearl™ 3120 silicone resins are spherical methyl silsesquioxane beads with narrow particle size distribution and mean particle diameters. Tospearl™ 3120 is a 12-micron particle size microfine silicone resin used as an additive in biaxially oriented polypropylene (BOPP) films as a slip and antiblocking agent. As a slip agent, it improves the coefficient of friction (COF) to facilitate easier processing, faster line speeds, and a low refractive index, preventing the film from tearing. Tospearl™ 3120 decreases friction between film layers, preventing sticking and tackiness issues. Its performance benefits, such as high-heat tolerance, organic solvent resistance, and dispersion applications, allow for a superior appearance for the product.
Momentive Tospearl™ 3120, when used as an antiblocking additive, prevents adhesion during film production, both on a finished roll and on the inside of the bubble. In paint and ink applications, Tospearl™ 3120 is used to improve moisture resistance, control viscosity, and clarify color, tone, and gloss control. As a toner additive, Tospearl™ 3120 silicone resin controls fluidity and prevents static electricity.
Color: White
Form: Spherical silicone beads
Average particle size, µm: 12.0
Water content (105°C, 60 min): 2% or less
pH: 7.5
Specific gravity (25°C): 1.32
Bulk density: 0.46
Specific surfaces area m²/g: 18
Linseed oil absorption rate mL/100 g: 50
Primary Chemistry: Methyl Silsesquioxane beads
Insufficient lubricity or slip in the manufacturing of plastics and BOPP films Low moisture resistance in paints, inks, and toner formulations Limited control over color, gloss, and tone in coatings and inks
Antiblock masterbatches Food packaging Industrial clear films BOPP films Paints and coatings Inks and toners
TSR9000 from Momentive is an excellent solution for light diffusion and enhanced optical properties in polymers and resins formulations.
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