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CAS NUMBER: 89382-86-5
DESCRIPTION OF BENTONE EW:
Bentone EW additive is a highly beneficiated, easily dispersible powdered smectite clay.
Bentone EW additive is easy to process.
No increased temperature is required.
Bentone EW additive is stable within the range pH 6-11.
Bentone EW imparts thixotropic viscosity and good suspension control to the water phase of cosmetics.
Bentone EW is in compliance; The ecological and organic cosmetics standards.
Bentone EW rheological additive is a refined and benificiated hectorite clay based thickener for waterborne paint and aqueous coating systems.
This rheology modifier has outstanding sag and suspension control and can be incorporated in the pre-gel.
Bentone EW is highly beneficiated, easily dispersible powdered smectite clay.
Bentone EW acts as a rheological additive for water-borne paint systems.
Bentone EW provides thermostable aqueous phase viscosity control and thixotropy.
Bentone EW enhances texturing and stippling effects.
Bentone EW improves workability/application.
Bentone EW does not impair throwing power in electrostatic coating systems.
Bentone EW offers fast water release, emulsion stabilisation, and good stability in electrostatic coating baths.
Bentone EW prevents hard settlement of pigments/ fillers.
Bentone EW reduces syneresis.
Bentone EW minimises floating/flooding of pigments.
Bentone EW is used for applications like corrosion-inhibitive primers, latex paints, electrodeposition coatings, foundry paints/foundry resins (washes), paper coatings and polishes and cleaners, and welding electrodes.
Bentone EW offers excellent sag stability & slump control, outstanding workability and high amount of elasticity.
Bentone EW minimizes floating and flooding of pigments.
Bentone EW is designed for adhesive applications.
Bentone EW is suitable for the formulation of acrylic sealants. Recommended dosage level is 0.1-1.0%.
Bentone EW has a shelf life of 4 years from the date of manufacture.
Bentone EW is very difficult to mix pure Bentone with water, it is just so sticky and the water content is so high, it takes a week to dry a sample and it cracks into pieces during drying.
Bentone EW also prevents sedimentation and increases the workability and brushability of both the glaze and any colors above.
PHYSICAL AND CHEMICAL PROPERTIES OF BENTONE EW:
-Composition: highly beneficiated smectite clay
-Color / Form: milky-white, soft powder
-Apparent (bulk) density: approx. 0.4 g/cm3
-Particle Size: min 94% thru 200 mesh
-Density: 2.5g/cm3
-Moisture: 10% max
APPLICATIONS OF BENTONE EW:
-Adhesives
-Ceramic compounds
-Ceramic glazes
-Corrosion-inhibitive primers
-Cosmetics
-Crop protection agents
-Electrodeposition coatings
-Latex paints
-Foundry paints/foundry resins (washes)
-Oil-in-water emulsions
-Other water-borne paint systems
-Paper coatings
-Polishes and cleaners
-Welding electrodes
USES OF BENTONE EW:
-Oil-in-water emulsions
-Water-in-oil emulsions
-Creams
-Lotions
-Anti-perspirants
-Deodorants
-Colour cosmetics
-Face packs
-Facial make-up
-Sun-care products
-Hair-care products
KEY PROPERTIES OF BENTONE EW:
Rheological properties:
-provides thermostable aqueous phase viscosity control
-imparts thixotropy
-is easily processed as a powder or pre-gel
-increases the viscosity of the aqueous phase and stabilises viscosity on ageing, at varying temperatures and under different shear conditions non-abrasive
-is stable over the pH range 6-11
-imparts thermostable thixotropy/pseudoplasticity
-provides excellent suspension control
-reduces phase separation and syneresis
-is non-abrasive and imparts smooth silky feel to cosmetics and personal care products
Application performance:
-enhances texturing and stippling effects
-improves workability/application of plasters
-no throwing power loss in electrostatic systems
-promotes fast water release
System stability:
-electrolyte emulsions
-stabilises emulsions
-provides good stability in electrostatic coating baths
-prevents hard settlement of pigments/fillers
-reduces syneresis
-minimises floating/flooding of pigments
Easy to use:
-can be incorporated as powder or as an aqueous 3 - 4 wt % (EW solids) pregel.
INCORPORATION OF BENTONE EW:
-Add Bentone EW to a vessel containing only water, pH 7.0 - 8.0.
-If necessary, adjust pH level. pH can be adjusted with appropriate alkali but triethanolamine can cause degelling.
-High or low pH during dispersion can lead to inhomogeneous gel formations and reduced efficiency.
-Mix at highest practicable speed for 10 minutes.
-After sufficient hydration time, introduce glycols, defoamers, biocides, dispersants etc. (mix)
-Add pigments, fillers, and active ingredients and disperse.
-Complete dilution
LEVELS OF USE OF BENTONE EW:
Typical addition levels are 0.1-1.0 % Bentone EW additive by weight of total formulation, depending upon the degree of suspension, the rheological properties or viscosity required.
PROPERTIES OF BENTONE EW:
-Bentone EW is easily processed as a powder or pre-gel
-Bentone EW is stable over the pH range 6-11
-Bentone EW is a thickener, provides excellent suspension control
-Bentone EW is a thickener, reduces phase separation and syneresis
FIRST AID MEASURES OF BENTONE EW:
-Inhalation: Remove person to fresh air. If breathing is difficult, provide oxygen and seek medical attention.
-Eye Contact: Rinse eyes immediately with water for at least 15 minutes. See a physician.
-Skin Contact: Wash skin thoroughly with soap and water. See a physician.
-Ingestion: Provide symptomatic treatment and seek medical attention.
FEATURES OF BENTONE EW:
-High gelling effectiveness, CP-EW can form gel even at 2% in water.
-Easy dispersing
-Its gel is transparent and of light color.
-Prevents pigment settling.
-High thixotropy, Good anti-sag property
-Appearance: Fine powder, white
-Moisture(105, 2hr): ≤ 10%
-Bulk density: 0.40~0.60g/cm3
-Viscosity, 3% in water, mPa. S: ≥ 1500
-Fineness(<0.076mm): ≥ 98%
USAGE AREAS OF BENTONE EW:
-Industrial water reducible paint
-Toothpaste and tooth polish
-Cream and Lotions Emulsion paint
-Pigment and blunge water
-Water-borne sealant, adhesive
STORAGE OF BENTONE EW:
Store in a dry place.
Bentone EW additive will absorb moisture in high humidity conditions.
SYNONYM:
Bentone EW
89382-86-5
DTXSID701053683
