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TYPICAL METHOD FOR OPTIMUM PERFORMANCE: |
A method proven successful for developing optimum performance in a organic system is to add the following in the under noted order (properly balance) is mixed |
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1. A portion of the total solvent/resin system (properly balance) is mixed.
2. SMECTONE CLAY (is added and mixed for 30 minutes)
3. Required amount of polar additive (to be added and mixed for 10 minutes).
4. Pigments, if any, are added and dispersed.
5. Remaining solvent/resin and other ingredients to be added, following standard practice. |
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Some Additional Suggestions: |
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Soya Lecithin may be added after the polar additive (after Step-3) if a lower viscosity, easily handled pregel is desired. A typical level is 1 to 2 parts by weight.
If surface-active agents are necessary, and shortly after dispersion. It is essential that SMECTONE CLAY be subjected to shear forces – to produce gel development – prior to possible interference from any surface-active agent. |
RECCOMMENDED LEVELS OF USE OF SMECTONE CLAY IN PAINTS, GREASES AND COSMETICS:
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The amount of SMECTONE CLAY gellant required depends on the type of the organic system and the amount of thickening and or other properties required.
For Grease formulations about 10% SMECTONE CLAY imparts a gel of consistency 2. This is ideal as heavy-duty grease with extremely good stability at temperatures in excess of 280 C
In paints for example, from 2.5 Kgs to 4 Kgs per 1000 litres is recommended for a glass enamel, while a stipple paint may need between 7 Kgs to 10 Kgs. Per 1000 litres of paint. For maximum gellation, penetration control and sag resistance approximately 1% SMECTONE CLAY thickener may suffice.
For Cosmetics, level of 1% to 3% SMECTONE CLAY, based on the total formulation weight are effective for introducing a thixotropic character and controlling separation of liquid from the gel, in and end product. Similar quantities will also function as an additional emulsifier in water mineral oil systems. |
TYPICAL PHYSICO-CHEMICAL PROPERTIES:
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| Form |
Finely divided powder |
| Colour |
Creamy white |
| Fitneness, through BSS No. 200 sieve% |
~90 |
| Odour |
Slight to none |
| Moisture content, % |
~4.0 |
| Specific gravity, G/ml |
1.7 |
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SMECTONE CLAY compounds are chemically neutral-their presence does not affect the pH of an organic liquid. SMECTONE CLAY gallants are resistant to the action of dilute acids and alkalis in a working range of pH 4 to pH 10, and maintain gel stability over long storage periods in this range.
Having an agreeable creamy white colour, SMECTONE CLAY can be easily modified into the desirable coloured systems. SMECTONE CLAY based gel exhibit a wide range of thermal stability. The material is non-hydroscopic, safe to handle – being chemically inert, and does not lose its effectiveness during long storage.
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END USE |
TYPICAL EXAMPLES |
SPECIAL FEATURES |
| Coatings |
Paints, Inks, Tube Colours |
Ensures sag resistance without affecting flow. Control of tact, body and Penetration, increased Colour development. |
| Greases |
Greases in medium to Viscosity index mineral Oils & medium to low Polarity synthetic fluids |
Inhibits syneresis and increases resistance to melting. Worked stability high temperature stability |
| Plastics |
Plastisols, Plastigels Polysulphides etc. |
As above |
| Rubber |
Rubber (Tyre) mould Release compounds / Paints. |
As above. Improved release properties. |
| Cosmetics |
Anti-perspirant skin Hydrophilic ointment/ Waxes and emulsions. |
Increase melting point and controls separation of the Liquid from the gel while maintaining softness in the substance. |
| Lipgloss and lipsticks |
Assists in emulsion Stabilization of water / oil Emulsions. |
| Shampoos/Lotions |
Gives a smooth feel to the Cosmetic and is lustrous in Gel form. |
Adhesives Rubber, epoxy, |
Rubber, epoxy, Polyester etc. |
Viscosity control, particle suspension, gel stability, no effects on cure. Assists in emulsion. Stabilization of water / oil emulsions. |
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Others |
Oil well drilling, hydraulic Fluids, polishes and Industrial cleaners, Drawings buffing and cutting Compounds plastic foams,Textile lubricants. |
As above |
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SMECTONE |
* GELLING * THICKENING * SUSPENDING
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| GENERAL ADVANTAGES |
• High gelling efficiency over a wide range of intermediate and low polarity organic liquids
• Produces reproducible thixotropic consistency over a wide temperature range
• Imparts particle suspension, preventing hard settling of pigments and fillers
• Exerts strong film reinforcing action in organic binder systems.
Detailed topical toxicological studies suggest SMECTONE CLAY to be safe
non- systematic use.
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