Cross Cut Paint Adhesion Test

Iso 2409 paint and varnishes cross cut test4 3.

Cross cut paint adhesion test. Paint adhesion test kit. 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. This method is utilized in evaluating the adhesion of either one or multiple coats. Method a x cut tape test and method b cross cut tape test.

The paint adhesion test kit also known as cross cut kit by precision gage tool company provides everything you need to perform adhesion and flexibility tests to meet the standards of the astm test method d 3359 each kit includes a blade a blade holder handle a hex wrench for changing blades an extra clamp screw a small flaking and cleaning brush a lighted. The method selected is based on the total thickness of the coating system to be evaluated. The x cut tape test and the cross hatch tape test. 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.

Using the appropriate method. This video demonstrates techniques for handling small or unusual parts for crosshatc. 3 2 test method b a lattice pattern with either six or. 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.

The paint has flaked partially or completely along the edges and or some squares have partially or completely detached. Cross cut test scrape adhesion pull off test and others. Before painting apply a consolidating fixative primer to the grid and once dried repeat the test to evaluate adhesion. 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. A cross cut area of between 15 to 35 is affected. 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. Cross cut testing for paint adhesion on small parts may prove difficult.

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. There are two variants of this test. Astm d3359 describes two test methods for evaluating tape adhesion of a coating system.