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ASK Chemicals Launches Ecolabel Compliant NECOWEL 900 Series for Decorative Coatings

Published on 2017-03-14. Author : SpecialChem

HILDEN, Germany -- Ecolabels are influencing buying decisions consumers take in their daily life when purchasing decorative coatings. The formulated product can be certified by independent organizations to increase visibility of their environmental friendliness to the consumer.

Ecolabels - Influencing Buying Decisions of Consumers

NECOWEL 900 Series
NECOWEL 900 Series for environmental
labelling of decorative coatings

Even though ecolabels are applied to the finished coating, the raw materials used to formulate this finished product need to comply with the different ecolabels in use by the coatings formulators. With regard to the choice of the binder system, the main criteria of all ecolabels are the content of volatile organic solvents, preservatives and other hazardous substances like e.g. PTBBA in the product.

Alkyd emulsions can include co-solvents to support the emulsification process or to adjust viscosity of the emulsion. Raw materials in the binder formulation may include solvents as well. NECOWEL alkyd emulsions do contain neither VOCs nor SVOCs.

Water-based products contain biocides to prevent bacterial contamination. Health hazards need to be listed in the Safety Data Sheet (SDS) with “H317: May cause an allergic skin reaction” or with “EUH208: Contains (name of sensitizing substance). May produce an allergic reaction.” Usually NECOWEL alkyd emulsions contain Methylisothiazolinone (MIT) and Benzisothiazolinone (BIT). NECOWEL 900 Series is free of MIT right from the beginning. Per request, this preservative can be adopted to the needs of the customer.

Alkyd Resins Free of PTBBA


The concentration of PTBBA (P-Tert-Butylbenzoic acid), as a hazardous substance, may not exceed the concentration of 0,01% when applying an ecolabel for a formulated product. Usually, the production of alkyd resins requires in many cases the use of p-tert-butylbenzoic acid (PTBBA) as chain stopper to adjust the molecular weight and application properties of the resin. With the development of the NECOWEL 900 Series ASK Chemicals R&D team was able to develop a series of alkyd resins that is free of any PTBBA, which makes it ideal to comply with common ecolabel standards.

Benefits of NECOWEL 900 Products


  • Do not contain any external emulsifiers but achieve excellent shear stability and shelf life
  • Offers low odor and high gloss
  • Excellent rheological behavior and drying properties make them an ideal binder solution for the formulation of ecolabel compliant decorative coatings

About ASK Chemicals

With its Resins and Specialties business unit, ASK Chemicals offers a series of innovative products for different applications, particularly in the field of alkyd resin emulsions for water-borne coatings, phenolic resins for composites and coatings, PU systems and carbon fibers. In addition to standard products, tailor-made products are also manufactured and customer-specific solutions developed.

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Source: ASK Chemicals
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