Basic information
The SEPAP test facility was developed based on numerous studies of photoaging processes that affect polymeric materials by analyzing chemical changes at the molecular level when exposed to climatic stress and accelerated conditions. This allows predicting the lifespan of polymers and developing photostable formulations in a short time.
Designed as an analytical tool to understand the degradation mechanisms of naturally aging polymers at the molecular level, the SEPAP unit replicates the chemical changes under accelerated, controlled laboratory conditions that are achieved during long-term natural weathering conditions, where similar changes in macroscopic properties (mechanical, aesthetic, etc.) can be expected.
In order for the SEPAP methodology to work at its best, advanced analytical and chemical knowledge, experience and a database of materials are usually required.
- Mercury discharge lamp (1000 W)
- Sample rack capacity 1040 cm²
- Irradiation range 90 - 300 W/m² (290 nm - 420 nm)
- Precise control of irradiance, black standard temperature (BST) and chamber temperature
- Radio-controlled lighting on the rack and BST monitor XENOSENSIV
- Chamber temperature range up to 70 °C
- BST range up to 100 °C
- Full color multilingual user interface
- Relative humidity control using ultrasonic humidifiers (SEPAP MHE+)
- Relative humidity range 10 - 95% (SEPAP MHE+)
- Sample spray with integrated 60 liter water tank (SEPAP MHE+)
