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Glossary of Colour
Aging – Degeneration occurring in a coating during the passage of time and/or heating.

Australian Standard 1580 – The recognised Australasian standard for testing paints and related materials.

Blooming/Blushing – The formation of a thin whitish film on top of the paint surface reducing the lustre or veiling its depth of colour (also known as CHILLING).

Brightness – The relative purity of a colour to the eye. Can refer to the amount of sparkle or surface reflection, such as “brilliant lustre”.

Colour Standard – Evic Group terminology for accurate matches against colour standards that we hold in our colour database.

Colour Interpretation – Evic Group terminology for approximate matches against indistinct samples such as metals and metallics, cloth and tiles, or inks.

Colour Movement – The degree to which a colour may change or vary (common in all materials, not just paint) within the colour wheel due to age and exposure.

Colour Swatch, Evic Supplied – Evic Group terminology for the colour sample attached to your paint can. This swatch is representative of the paint in the can (once dry) and is only attached to your can after the achieved colour has been checked for correctness. The swatch is also an important tool in confirming your colour is correct.

Colour Fast – A colour which does not fade or change appreciably in hue, tint or tone upon exposure to light over time.

Colour Base Coat – An intermediate coat formulated to a particular colour (generally light-grey) to aid the opacity of bright lead-free finishing coats.

Colour – A term used to describe the effect produced by various wavelengths of light upon the retina of the eye. An object is black when all wavelengths of light are absorbed and none are reflected; it is white when wll wavelengths are reflected and non are absorbed; it is green when only the wavelengths producing the sensation of green are reflected, and so on. Colour has three main characteristics:

1. Hue is that quality which produces the colour sensation, that is red, blue, green, etc.

2. Tint is the amount of colour present, as a pale tint of blue.

3. Shade expresses the purity or degree of a colour, as a dark shade of red.

The term colour is also used to denote the pigments used to produce coloured paints. It is also used to express the act of applying colour to an object.

∆E (Delta E) – A mathematical equation measuring the distance between two colours within the three-dimensional colour spectrum.

Fading – The loss of colour due to exposure to light, heat or other destructive agents.

Flooding – Describes the colour change that can occur in the finishing coat from the colour at the time of application to that of the dried film. Flooding is a uniform colour ‘float’, where one tone of the colour becomes stronger as the film dries.

Glaze – A translucent coating applied over a previous finish to enrich or modify the finish.

Ink Colour Matching Systems – A standardised palette of ink colours that are repeatable within the print process. Unlike a solid colour, they rely on the white paper beneath to achieve their colour. Pantone and Munsell are popular Ink Colour Matching Systems.

Intensity – Describes the purity or degree of hue of a colour as seen by the eye.

L*a*b Value – Denotes the coordinates of a colour (i.e. the address) within the three-dimensional colour spectrum.

Lead Paint – Any paint with lead content in excess of 0.1% (be weight) of the dried film is classified as a Third Schedule Paint by the Uniform Paint Standard. Third Schedule Paint must be labelled correctly and declare its lead content.

By law, paint containing lead (third scheduled) is prohibited from manufacture, sale or use on any:
roof or surface to be used for the collection or storage of potable water;
furniture;
fence, wall, post, gate, building (interior or exterior), bridge pylon, pipeline, storage tank or any similar structure;
premises, equipment or utensils used for the manufacture, processing, preparation, packing or serving of products intended for human or animal consumption.

 

Lead Paint Use – Traditionally paints containing lead have always been used for industrial purposes because they provide excellent coverage and low cost for bright colours (such as yellow, orange, red and lime green). Since the products that produce these colours are considered Third Schedule Paints, they have restricted legal areas of use (see the above restrictions).

Lead Free Paint Use – In recent times lead-free colours have been developed to provide safe replacements for paint colours that use pigments containing lead (such as those mentioned above). Although virtually all bright shades can be achieved, they have poor opacity and much higher cost. Thse paints contain less than 0.1% lead and are suitable for a broad range of applications, including furniture. Evic only manufacture and sell lead-free coatings for these applications.

Lead Paint Detection – A fast, simple and non-destructive test is now available to examine dried paint film for lead content. Specialist lead analysis machines can scan any object to identify and measure the elements (such as lead and chromium concentrations) used in the coating without damage.

Match Proximity – For initial or new colour standards we seek a good commercial match; the absolute closeness is dependent on our considerations to improve opacity, durability and cost. With repeat colours or matches to painted panels, only the colour is considered.

A colour is a match when it falls within a precise, fixed colour matching specification, as measured objectively using highly sophisticated colour equipment. If a sample has been supplied, this colour match will be confirmed also by visual assessment by our colour technicians.

Paint products vary in resistance to UV, staining, heat, chemicals and age, all of which influence their ability to maintain a fixed colour. Our colour matching specification therefore varies with each product family, starting with exterior polyurethane as the most light-fast, and epoxy finishes as the least light-fast.

The more light-fast the product, the closer the match that can be provided (based on estimates of matching as by Australia Standard AS1580.601. This standard is intended as a guide only, not a specification. Interior polyurethane can achieve this guide when used inside under normal conditions).

It should be noted that Evic re-matches the original colour once applied. Extremely light-fast products such as interior and exterior polyurethane colours will move minutely, but even such miniscule variations can be observed in pale colours such as vivid, bright or off whites.

Metamerism – The phenomenon exhibited by two colours that appear to be the same when viewed under one light source (e.g. daylight) but which do not match under a different light source, (e.g. fluorescent lighting).

Metameric Match – A close colour match under one light source, which gives an appreciable colour difference under another light source. Often the case when different tinters or pigments are used to achieve the same colour.

Nuance – A small gradation or degree of difference in colour, with somewhat the same meaning as “cast” or “tinge”. For example, Indian Red is a brownish-red with a purple nuance.

Opacity – The ability of a paint to obliterate the colour difference of a substrate over which it is applied.

Polychromatic (Metallic & Pearlescent) Finish – A finish that has a metallic lustre and gives an scintillating iridescent effect, the colour of which varies when viewed form different angles.

Textured Finishes – Due to the presence of texturing agents, it takes 24 hours for a colour match to become stable in our range of textured decorative polyurethane finishes. It is therefore necessary to tint, then hold all texture matches overnight, finalising the match the following day.

Tone – A dilution or concentration of a colour.

Wet Sample – A sample of a paint colour that has not yet been applied.

Guide to Colour