Ichemco Internal Test Methods
Peel Adhesion on Steel
|Procedure:||Condition a coated sample for about 1 hour.
Clean carefully the test panel with acetone and absorbent cleaning material, avoid contact with fingers. From a representative sample of material, cut some strips (1in wide and 12in long). Apply one end of the specimen to the border of the test panel. Hold the other end of the specimen so that it doesn't go in contact with the panel but is positioned loosely above it. Roll once in each direction with the 4.5 lbs hand roller or with a Rolldown Machine (12 in/min, 4.5 lbs PSTC rollers).
Wait for 20 minutes before proceeding with the measurement.
Double back the free end of the strip at an angle of 180°. Fix the panel to the mobile clamp of the peel adhesion tester (or tensile tester), and fix the folded end to the other clamp. Operate the instrument at 12.0 in/min speed and report the average pull value obtained during the peeling .
Standard room condition: temperature 20-22°C.
|Instruments:||PSTC test panel, stainless steel, 2x6 in;
ChemInstruments Rolldown Machine (4.5 lbs, 12.0 in/min speed);
ChemInstruments Adhesion/Release Tester (PA-1000-180 or AR-1000), speed 12.0 in/min;
4.5 lbs rubber covered hand roller;
1in wide tape specimen cutter;
Acetone and absorbent cleaning material.
|Recordings:||Peel adhesion test result shall be reported in g/in together with data for the identification of the adhesive sample.
|External references:||PSTC-101, AFERA 5001