PAINTS AND VARNISHES - DETERMINATION
OF THE POT LIFE OF MULTICOMPONENT
COATING SYSTEMS - PART A18:
PREPARATION AND CONDITIONING OF
SAMPLES AND GUIDELINES FOR TESTING
(ISO 9514:2005, IDT)
This International Standard describes a method, carried out under standard conditions, for preparing and
storing a sample of a multicomponent coating system and subsequently assessing its pot life by measuring a
particular property/ies.
Reactive systems curing within a short period of time, e.g. 3 h, will have the end of their pot life so near to the
gel point that they will need to be tested for that particular property in accordance with ISO 2535.
Special “low temperature” grade systems will need to be tested at a lower specified temperature to reflect the
conditions under which they will be used in practice. Additionally, it can be a requirement to determine pot life
at a specified temperature or temperatures in order to cover a range of practical conditions under which a
paint will be used.
The method can be carried out either as a pass/fail test by determining the particular property/ies after a
specified period of time, or as determination of the pot life by repeating determinations at convenient intervals
of time.
This International Standard is not intended for in situ control of products during their application. It is intended
to determine “pot life” in the laboratory.
NOTE The value obtained from this test method can be subject to modification by suppliers for practical reasons
(e.g. starting temperature) when giving advice to users and should then be called the “practical pot life”.
