From The Chemistry and Physics of Coatings, Second Edition
In general, formulation involves a large matrix of issues, obstacles and compromises. Though firmly rooted in scientific understanding, its practice often seems more like an art form and the skills required cannot be easily or quickly transferred. However, the development of computerised formulation systems is generally making it easier for the inexperienced formulator to control the many variables.
11.2 BASIC PAINT FORMULATION
The components of paint are illustrated in Figure 11.1. It should be appreciated that not every paint will contain all of the types of ingredients shown. Also, the same ingredients combined at different levels can produce both paints and films with quite different properties.
Figure 11.1: Components of paint
The formulation process begins with establishing the criteria that will determine the choice of the raw materials and the way in which they are put together. Amongst these are:
Paint has to provide the necessary degree of protection or decoration for the desired time period at the recommended film thickness.
The way in which paint is applied must also be taken into account - for example, whether the paint is applied by hand brushing or by automated spray equipment.
The selection of raw materials is dictated by existing and future legislation, particularly that relating to solvent emissions. The use of toxic materials is often not prohibited by legislation, but is voluntarily regulated by paint companies.
The situation rarely arises where cost is not important and a viable paint must...
Products & Services
Sprayers and spray coating equipment refers to any component used in a variety of industrial spraying processes, including application tools, handling equipment, and supplemental machines. They are used in the process of atomizing coatings, paints, lubricants, solvents, deicing liquids, chemicals, and powders so they can be spray-applied to a surface.
Topics of Interest
A.R. MARRION 12.1 INTRODUCTION Coatings are materials applied to all manner of surfaces to decorate them and protect them from the environment and other sources of harm. Sometimes they perform...
ALAN GUY 10.1 INTRODUCTION Earlier chapters have described the central function of polymers in the chemistry of film formation. However, a successful coating usually requires properties that...
4.1 GENERAL It is necessary to be familiar with the fundamentals (Weismantel, 1981; Martens, 1974) of paint to understand and intelligently discuss paint or coatings. Like all technologies, paint...
10.3 SOLVENTS Most resins used as media for paints are solids or highly viscous materials, which have to be diluted with a liquid to lower their viscosity so that they can be manufactured into paint...
The paint and coating application areas comprise (1) architectural coatings or house paints, which includes waterborne latex, exterior and interior solvent-borne paints, lacquers, and wood and...