Summary of test methods 3 1 test method a an x cut is made through the film to the substrate pressure sensitive tape is applied over the cut and then removed and adhesion is assessed qualitatively on the 0 to 5 scale.
Cross cut paint adhesion test.
Cross cut test scrape adhesion pull off test and others.
Cross cut testing and x cut testing 3.
In the paint and coating industries paint adhesion testing is often used to determine if the paint or coating will adhere properly to the substrates to which they are applied.
Method a x cut tape test and method b cross cut tape test.
The tqc cross cut adhesion test basic cutter is used to test the adhesion of dry coats of paint on their substrate by means of a series of cuts through the coating.
The procedure consists of cutting a pattern of perpendicular lines through the adhesive all the way to the substrate then spreading pressure sensitive tape over the cuts and rapidly pulling it off.
The paint has flaked partially or completely along the edges and or some squares have partially or completely detached.
This method is utilized in evaluating the adhesion of either one or multiple coats.
Iso 2409 paint and varnishes cross cut test4 3.
3 2 test method b a lattice pattern with either six or.
Two series of parallel cuts cross angled to each other to obtain a pattern of 25 or 100 similar squares.
The x cut tape test is primarily intended for use at job sites.
The method selected is based on the total thickness of the coating system to be evaluated.
There are several different tests to measure the resistance of paints and coatings from substrates.
Cross cut testing for paint adhesion on small parts may prove difficult.
Astm d3359 describes two test methods for evaluating tape adhesion of a coating system.
Paint adhesion test kit.
There are two variants of this test.
Iso 4624 paints and varnishes pull off test for adhesion 2 iso 16276 2 corrosion protection of steel structures by protective paint systems assessment of and acceptance criteria for the adhesion cohesion fracture strength of a coating part 2.
Using the appropriate method.
Using a sharp razor blade scalpel knife or other cutting device two cuts are made into the coating with a 30 45 degree angle between legs and down to the substrate which intersects to form an x.
This video demonstrates techniques for handling small or unusual parts for crosshatc.
A cross cut area of between 15 to 35 is affected.
