NUOSPERSE® 657 RD

Manufacturer: Elementis Specialties Inc.

Ingredient Type: Additive

Function: Pigment Dispersing Agent

GENERAL INFORMATION

NUOSPERSE 657 RD is a wetting and dispersing agent for pigments which can be applied to practically all solvent based paint systems. The product can also be applied in the vinyl industry. NUOSPERSE 657 RD contains very low content of cyclic aromatic hydrocarbons.

CHEMICAL & PHYSICAL PROPERTIES

These are typical properties not to be used for specification purposes.

APPLICATIONS

NUOSPERSE 657 RD can be applied to practically all paint systems, e.g. to air-drying alkyd paints, alkyd-melamine baking enamels, acrylic enamels and industrial primers. By adding NUOSPERSE 657 RD to the pigment paste before the grinding process, a quicker wetting of the pigments as well as a better degree of dispersion is obtained. This has the following advantages:

  • Shorter grinding time
  • Low viscosity of the grinding paste, resulting in a greater capacity Improved stability of the paint
  • Better coloring power of the paint
  • Better covering power of the paint

If applied in the correct concentrations, NUOSPERSE 657 RD will not influence the gloss and adhesion of the paint unfavourably. The use of NUOSPERSE 657 RD in the preparation of pigment paste for vinyl use offers the following advantages:

  • Higher pigment loading of the pigment paste without increased viscosity, or permits lower viscosity and greater fluidity at comparable pigment loading.
  • The superior wetting and dispersing properties of NUOSPERSE 657 RD permits a finer pigment grind.
  • The use of NUOSPERSE 657 RD produces an improved color strength of the pigment to the extent of about 5 – 10%. The greatest degree of improvement is obtained with organic pigments.
  • NUOSPERSE 657 RD improves the dispersion of the titaniumdioxide pigments, providing greater opacity and whiteness which indicates that for equal hiding, the amount of white pigment could be reduced in the vinyl compound and be replaced by less expensive fillers.
  • NUOSPERSE 657 RD does not alter the heat stability of average vinyl compound.

INCORPORATION

As a dispersing agent for solvent based coatings, NUOSPERSE 657 RD should be applied at a concentration of 0.5 – 2.5% calculated on the pigment paste, and should be added before the grinding process. The best method is to mix NUOSPERSE 657 RD together with the quantity of binding agent required for the pigment paste.
For use in a vinyl application, NUOSPERSE 657 RD should be included in the pigment paste at 2.0 – 5.0%, based on the weight of the dry pigment. The exact dosage should be determined experimentally.

ALTERNATIVE PRODUCTS

As a dispersing agent for solvent based coatings, NUOSPERSE 657 RD should be applied at a concentration of 0.5 – 2.5% calculated on the pigment paste, and should be added before the grinding process. The best method is to mix NUOSPERSE 657 RD together with the quantity of binding agent required for the pigment paste.
For use in a vinyl application, NUOSPERSE 657 RD should be included in the pigment paste at 2.0 – 5.0%, based on the weight of the dry pigment. The exact dosage should be determined experimentally.

Download Product
Related Documents

Get Technical Advice

Lack of familiarity with new products that can be an alternative to existing products, as well as lack of technical knowledge in using them to obtain new formulations, are among the barriers that make some manufacturers dependent on some products. With an expert technical consulting team, we can overcome these obstacles to open new doors for you. Contact us to find out.

Get Technical Advice

Get Commercial Quotation

Knowing specialty chemicals suppliers, knowing the purchasing policy, terms and conditions of manufacturing companies, accessing different and secure purchase channels, knowing exactly the considerations of financial transactions, shipping and clearance are just parts of our distinct supply chain that enable us to get the most appropriate price for requests.

Get Commercial Quotation