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Introduction
GARAMITE 1958 is a commercial product name for a rheology additive based on organophilic phyllosilicates (layered silicates). It is a powdered additive used to modify the flow properties (rheology) of various systems. It is primarily used in industrial applications, including coatings, adhesives, and plastics. Its relevance to the food industry is likely as an additive in food contact materials, such as coatings or adhesives used in packaging.
CAS Number
GARAMITE 1958 does not have a specific CAS number as it is a formulated product. It is a mixture of organically modified phyllosilicates.
Synonyms
• Organophilic phyllosilicate-based rheology additive
• Powdered rheology additive
Topic Headings
1. Primary Industrial Applications (list form)
• Rheology modifier — Used to control viscosity and flow properties in coatings, adhesives, and plastics.
• Anti-settling agent — Prevents the settling of solid particles in liquid systems.
• Anti-sag agent — Improves the resistance to sagging or slumping in paints and coatings.
• PVC plastisols — Used in PVC plastisol applications.
• Unsaturated polyesters — Used in various resin systems.
2. Mechanism of Action as a Rheology Additive (paragraph form)
GARAMITE 1958 consists of organophilic phyllosilicates, which are layered minerals that have been surface-treated to make them compatible with organic systems. The particles of these silicates can form a network structure within the liquid, creating a yield stress that controls flow. This network can be broken down by shear (e.g., during mixing or application) and rebuild when the shear is removed, providing controlled rheology and preventing sagging or settling.
3. Physical and chemical properties (list form)
• Appearance — White to off-white powder.
• Form — Powder.
• Composition — Organophilic phyllosilicates.
• Dispersion — Dispersible in various organic and solvent-free systems.
4. Safety and Regulatory Status (paragraph form)
GARAMITE 1958 is not a direct food additive. Its use in food contact applications would be regulated as a component of a food contact material. The safety of the final product depends on the specific formulation and the potential for migration of components into food. Manufacturers must ensure that any food contact material containing GARAMITE 1958 complies with relevant regulations.
