Volatile Organic Compounds (VOCs)
Volatile Organic Compounds (VOCs) are organic (carbon-based) chemicals
that evaporate at room temperatures. VOCs cause air pollution and may be
harmful to human health.
The VOC content of paint is now usually indicated on the container. Paint
manufacturers have introduced a 5-band classification that describes the VOC
content as Minimal, Low, Medium, High or Very High.
Traditionally, emulsions - which use water as solvent have a zero,
minimum or low VOC rating while 'oil-based' paints such as glosses,
satinwoods, eggshells, varnishes and specialist paints have a medium, high
or very high rating. Brush cleaning chemicals are typically rated high or
very high.
Today, many modern glosses, eggshells, satinwoods and varnishes are
advertised as 'low odour' and, as the name suggests, have medium or low VOC
ratings. This is a relatively new development and as a rule of thumb you
should assume that any paint of this type is high VOC unless stated
otherwise on the container. |
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