Introduction

The term paint is generally used to describe a white or coloured liquid which, when applied to a wooden or metal surface, dries to form an integral film over the surface. Paint is used externally with the prime intention of protecting the substrate and secondly, to decorate and enhance the appearance of the article or structure. When used inside buildings the reverse usually applies and here the main intention is to decorate.

Whilst the word paint is commonly used to describe any liquid coating sold in a tin or drum it must be appreciated that there is a very large variety of paints produced – each carefully designed and formulated to serve a specific need and to perform a specific function.