The QCT condensation tester – “The Original Cleveland Cabinet™” - was first introduced in 1956. The QCT simulates the damaging effects of outdoor moisture attack by condensing warm water directly onto test specimens. In a few days or weeks, the QCT tester can reproduce the damage due to moisture that occurs over months or years outdoors.
The QCT tester is fast, easy to use, and affordable. It uses 100% condensing humidity to simulate and accelerate damage caused by rain and dew on metals, paints, and organic materials. This degradation is accelerated relative to natural exposures by increasing moisture temperature. The QCT tester replaces water immersion and ordinary (non-condensing) humidity tests.
The QCT condensation tester is used in thousands of labs in over 50 countries. It is the simplest, most reliable, and easiest-to-use condensation tester available.
Effects of Outdoor Moisture
Water is a common enemy to most materials. It causes metals to corrode, organics to decompose, and structures to disintegrate. Condensation is water that has been distilled, mixed with the atmosphere, and saturated with oxygen. This type of moisture has also been called “aggressive water”, because it carries oxygen with it as it contacts a material or diffuses through a coating. Studies show that materials outdoors are exposed to an average of 12 hours per day of condensed water in the form of dew.
The QCT Condensation Tester
The QCT tester uses 100% condensing humidity to simulate and accelerate damage caused by dew on metals, paints, and organic materials. It accelerates degradation relative to natural exposures by increasing moisture temperature.