PEEL ADHESION 300 mm/min FINAT 1
Purpose of the test
This test is performed to determine the peel adhesion from a self adhesive label or tape .
Procedure
Operate the instrument in accordance with FINAT FTM 1 and the manufacturer’s instructions.
Leave the samples exposed for 24 h to 23°C and 50% R.H., according to ISO 187.
From each of the 5 sheets cut two stripes 25,0±0,1 mm wide and minimum 175±0,1 mm long, with its long side parallel to the long side of the sheet.
Important: use a lint-free tissue and ethanol or acetone to clean the glass plates.
The glass plates should have no damage or contamination.
Remove the backing material and glue the test piece carefully on a glass plate.
Roll the FINAT standard pressure roller (2 kg) twice over the sample.
Measure the first 5 test pieces after 20 minutes and the second 5 test pieces after 24 h with a speed of 300 mm/min and a testing angle of 180° over a peel distance of minimum 100 mm.
Report for each time 5 measures in in N/25 mm, their mean and standard deviation calculated to 3 significant figures.
FINAT FTM 1
Nr. of samples
6 test pieces per level
No special size
Levels
20 min:
Level 1: 4.0÷8.0 N/25 mm
Level 2: 8.0÷11.0 N/25 mm
24 h:
Level 1: 4.0÷8.0 N/25 mm
Level 2: 10.0÷13.0 N/25 mm
Reporting
Report 5 valid results of measurements in N/25 mm, their mean and their standard deviation. All to three significant digits.