The EN ISO 3251 standard developed by the International Organization for Standardization (ISO) defines a test method for determining the nonvolatile matter content by mass of condensation resins such as binders, polymer dispersions and phenolic resins (solubles, novalac solutions and the like) for paints, varnishes, paints and varnishes. .
This test method is also applied to formulated mixtures containing fillers, pigments and other excipients such as thickeners and film-forming agents.
For this test method to be usable for unplasticized polymer blends and rubber lattices, the non-volatile residue must be chemically stable under the test conditions. Non-volatile residues consist mainly of polymeric material and small amounts of auxiliary substances such as emulsifiers, protective colloids, stabilizers, added solvents as film-forming agents and preservatives, especially for rubber latex concentrate. For plasticized samples, residue generally includes plasticizer by definition.
Non-volatile matter is defined as the coating content remaining after all water, solvents and other volatiles have been evaporated or removed. The amount of non-volatile matter in a paint or coating is expressed as weight or volume.
The amount of non-volatile matter in a paint or coating is also sometimes used to determine the proportion of volatile content. Volatile organic compounds (VOCs) have negative effects on the environment, especially. Current health and safety regulations place limits on the total amount of volatile compounds allowed in products such as paints, coatings and solvents. In addition, many consumers are now more conscious of purchasing coatings with low volatile organic compounds. Therefore, many paint and coating manufacturers have to produce products containing lower amounts of volatile substances, and the determination of non-volatile matter content is becoming more and more important.
Among the numerous tests, measurements, analyses, and evaluations our organization provides for businesses in various sectors, we also offer testing services for determining the non-volatile substance content in paints, varnishes, and plastics within the scope of the EN ISO 3251 standard, thanks to our trained and expert staff and advanced technological equipment.
To get an appointment, to get more detailed information or to request an evaluation, you can ask us to fill in our form and reach you.
