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DIN Standards Committee Coatings and Coating Materials

Abstract

This document gives information on an interlaboratory comparison for the determination of the yield point, using rheological test methods. The yield point is the shear stress τ below which a material does not flow. This document provides examples of fields of applications, in which important material properties are characterized with the aid of the yield point. These fields of application include: - effectiveness of rheological additives; - shelf life (e.g. with regard to sedimentation, separation and flocculation); - stability of the structure at rest; - behaviour when starting to pump; - use in scraper systems; - wet-film thickness; - levelling and sagging behaviour (e.g. without brushmarks or sag formation); - orientation of effect pigments.

Begin

2024-05-28

WI

00139823

Planned document number

DIN EN ISO 20659-1

Project number

00201228

Responsible national committee

NA 002-00-07-16 AK - Rheology  

Responsible european committee

CEN/TC 139 - Paints and varnishes  

Responsible international committee

ISO/TC 35/SC 9/WG 30 - Properties prior to and during application and drying  

previous edition(s)

Rheological test methods - Part 1: Determination of the yield point - Fundamentals and comparative testing methods; Text in German and English
2022-07