Speciality chemicals. Customised.Published product information from RSA’s catalogue. Request the current technical data sheet and confirm suitability, handling and dosage with RSA before evaluation.
Wetting Agent
MARK I 4050
Wetting and Dispersing Agent for Black Pigmentfor use in various inks such as offset, flexo, gravure.
Published usage guidance
Recommendation & Method of use: For Black ink: Addition of MARK I 4050 @ 10% of pigment by weight in mill base during grinding is recommended. For other Applications the right quantity can be determined by experiments.
MARK I 4060
Grinding & Wetting Agent for Solvent Based Ink systems for organic & inorganic pigments to ensure their optimal use for solvent based inks such as offset, flexo & gravure inks.
Published usage guidance
Recommendation & Method of use: In solvent based Inks: 8 to 10% of inorganic pigments & 12 to 15% of organic pigments by weight is recommended. For other Applications the right quantity can be determined by experiments.
MARK I 4010
Anionic wetting cum dispersing agent for all water based Inks.
Published usage guidance
Recommendation & Method of use: In water based ink: 0.2 to 0.3% of batch size The right quantity can be determined by experiments. For other Applications the right quantity can be determined by experiments.
Dispersants
MARK I 4310
Antisettling Agent for Offset Inks
Published usage guidance
Recommendation & Method of use: MARK I 4310 is an easy flowing liquid & can be readily mixed or added at any stage of manufacturing ink. However, it is always ideal to add half the quantity at grinding stage & the remaining half at later stage to achieve maximum efficiency. The phenomenon of settling mostly depends upon the nature of pigments, weight of pigments and also the extenders which are incorporated in the formulations. It is always advantageous to determine the optimum level of MARK I 4310 for particular formulation by taking trials. • DOSAGE FOR Offset inks: 0.3 to 1%. • DOSAGE FOR Other solvent based inks: 0.1 to 0.5%.
Defoamers
MARK I 4410
Mineral oil based Defoamer for Water based Ink Systems
Published usage guidance
Recommendation & Method of use: MARK I 4410 is recommended for Ink formulations where air-entrainment causes operational difficulties or impair the quality of Ink performance. 0.25 to 0.5% of defoamer on the weight of the inks is usually sufficient to suppress air-entrapment.
MARK I 4420
Mineral oil based Defoamer for Water based Ink Systems
Published usage guidance
Recommendation & Method of use: MARK I 4420 is recommended for Ink formulations where air-entrainment causes operational difficulties or impair the quality of Ink performance. 0.25 to 0.5% of defoamer on the weight of the inks is usually sufficient to suppress air-entrapment.
MARK I 4430
Poly-siloxane based Defoamer for Water based Ink Systems
Published usage guidance
Recommendation & Method of use: MARK I 4430 is recommended for Ink formulations where air-entrainment causes operational difficulties or impair the quality of Ink performance. 0.25 to 0.5% of defoamer on the weight of the inks is usually sufficient to suppress air-entrapment.
MARK I 4440
High performance Mineral oil based Defoamer for Water based Ink Systems
Published usage guidance
Recommendation & Method of use: MARK I 4440 is recommended for Ink formulations where air-entrainment causes operational difficulties or impair the quality of Ink performance. 0.25 to 0.5% of defoamer on the weight of the inks is usually sufficient to suppress air-entrapment.
MARK I 4450
Anti-Foam agent for Water Based Systems. MARK I 4450 is recommended for formulations where air-entrainment cause operational difficulties or impairs the quality of the product. It has also very rapid foam knock-down properties. From 0.25 to 0.5% of defoamer on the weight of the coating solids is usually sufficient to suppress air-entrainment. The optimum amount for individual formulations can readily be determined by trial. For adhesives, 1 to 2% of MARK DC 1450 based on the weight of the latex solids is more than sufficient. As the product is very effective antifoam agent, a very small quantity like 200 gms to 500 gms can effectively defoam 100 Ltrs of paint. It is advisable to split the addition of defoamer by adding half the normal quantity to the pigment mix prior to grinding to suppress the formation of foam & the balance to the let down portion of the paint.
Request current product details ↗MARK IC 2460
Next generation Modified polysiloxane based Antifoam agent for solvent borne Industrial Coating. Foaming caused by mechanical forces while production, mixing and application of solvent based systems can be prevented by use of MARK IC 2460.
Published usage guidance
Recommendation & Method of use: MARK IC 2460 is recommended for formulations where air-entrainment cause operational difficulties or impairs the quality of the product.
MARK IC 2470
Organo Modified polysiloxane based Antifoam agent for solvent borne and solvent free Industrial Coating. Foaming caused by mechanical forces while production, mixing and application of solvent based systems can be prevented by use of MARK IC 2470. Air inclusions and pinholes in solvent-borne, solvent free and radiation-curing coatings, which is particularly significant in high viscosity or high solids formulations and essential for airless/airmix applications can be prevented by use of MARK IC 2470
Published usage guidance
Recommendation & Method of use: MARK IC 2470 is recommended for formulations where air-entrainment cause operational difficulties or impairs the quality of the product.
Surface Property Enhancers
MARK I 4710
Slip & Mar Resistance Improver for inks such as offset, flexo, gravure, UV, epoxy and NC inks.
Published usage guidance
Recommendation & Method of use: 1. 0.1- 0.5% Concentration on batch size. 2. Preferably at end stage. 3. Dosages need optimization.
MARK I 4720
Flow & Leveling Agent for inks such as offset & gravure
Published usage guidance
Recommendation & Method of use: 1) 0.3-0.8% Concentration on batch size. 2) Preferably at end stage. 3) Dosages need optimization.
MARK I 4750
HDPE Wax Emlsion For Hardness & Slip Mar resistance in Inks, performance coatings and also Water repellence in exterior Paints. Recommendation & Method of Use: • 1-6% based upon total formulation for coatings. • 2-10% based upon total formulation for printing inks. The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests. The wax additive is preferably added with stirring after blending the polymers with the plasticizers and water, although before the incorporation of surface-active substances.
Request current product details ↗pH Modifiers
MARK I 4810
pH stabilizer for water and solvent based inks such as offset, gravure, UV and NC inks
Published usage guidance
Recommendation & Method of use: • 0.1-0.2% Concentration on batch size. • Preferably in thinning down process. • Dosages need optimization.