The QUICKTEST 38 ® and the RAPIDTEST 38 ® can be used to determine to what extent the pretreatment of polyolefins (polypropylene, polyethylene, polybutylene) has shown an effect.The liquid contained in the pen remains as a continuous line at a surface tension value of 38 mN/m or greater, below that it rolls off. The line applied with QUICKTEST 38 ® or RAPIDTEST 38 ® dries in a matter of seconds and no longer needs to be wiped off. Advantages: Extremely easy to handle Perfect for quick checks No wiping off necessary Lasting display of result Archiving of test result possible ATTENTION: The test liquid of QUICKTEST 38 ® and RAPIDTEST 38 ® contains solvents. Solvent-sensitive materials (e.g. PS) can be attacked by this, which can lead to misinterpretation! QUICKTEST 38 ® arcotest ® , red Good readability due to striking red colouring