The DeCAL 1000 Series is a range of synthetic alkali polyacrylate thickeners to give high viscosity non-stringing rheology for easy to apply formulations at alkaline pH.
DeCAL 1000 is a highly effective low shear thickener, greatly increasing viscosity and yield values which can be used in much lower quantities compared with other low shear thickeners.
Applications
DeCAL 1000 is recommended for use in flat paints, textured coatings, plasters and woodstains. It is easy to handle and can be incorporated at any manufacturing step. It is also ideally suited for use in industrial and household settings where it displays high thickening power, electrolyte tolerance, surfactant stability and water white clarity on neutralisation.
Benefits
DeCAL 1011 is a synthetic alkali swellable, solvent free and liquid thickener for water-borne systems. It is highly effective to increase low shear viscosities as well as yield values.
Applications
DeCAL 1011 is recommended for use in flat paints, textured coatings, plasters and wood stains. It is also ideally suited for use in industrial, institutional and household sectors where its high thickening power, electrolyte tolerance, surfactant stability and water white clarity on neutralisation are beneficial.
Benefits
DeCAL 1015 is an acrylic copolymer emulsion in water. The polymer provides cost effective rheology modification particularly suitable in the application of adhesive and latex compounds.
Application
This product is activated in alkaline conditions by extensive swelling of the high molecular weight polymer to provide a thixotropic rheology useful in water-based adhesives and textured coatings.
Applications:
This product is activated in alkaline conditions by extensive swelling of the high molecular weight polymer to provide a thixotropic rheology useful in water-based adhesives and textured coatings.
Applications:
DeCAL 1035 is an acrylic copolymer emulsion in water. The polymer provides the rheological control effect through extensive swelling of the high molecular weight polymer in alkaline conditions, in the presence of water.
Applications
DeCAL 1035 is an ideal rheological control additive for use in water-borne coatings, adhesives and paints. DeCAL 1035 allows formulation of systems with an advantageous thixotropic behaviour giving non stringy formulations easily applied over a wide range of speeds and or processes. Such formulations are also ideally suited for airless spray applications. DeCAL 1035 is optimally effective in the pH range 7.5 – 10.5.
Since DeCAL 1035 is a synthetically derived product it is less susceptible to microbiological attack than derivatives of cellulose. Consequently the paint formulator can substantially reduce the level of biocide leading to a broader area of application.
Rheological control additives should preferably be added at the final stage of coating manufacturing, not in the pigment grinding stage as unrecoverable damage to the thixotropic rheology can occur at high shear stress. DeCAL 1035 is convenient to add as a post additive in liquid form thereby, offering flexibility in viscosity adjustment from batch to batch.
Provided efficient mixing equipment is available DeCAL 1035 can be poured directly into the mix. However it is sometimes easier to add DeCAL 1035 by diluting it 1:1 or even 1:2 with water to avoid shocking the system.
Should at any time the pH of the final system fall below 7.5 then additional alkali, ammonium or other base is necessary to reactivate the thickening mechanism. Use of volatile alkali (e.g. ammonia) as neutralising agent improves the water resistance property of the dry film. The amount of DeCAL 1035 required for optimum performance should be determined in trials covering a concentration range.
Recommended addition level: 1.0 – 3.5% DeCAL 1035 based on total formulation.
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