Paint Adhesion Test Report

Pull off adhesion testing of protective coatings applied to steel and other substrates is widely used to assess the coating process and to determine if the coating is fit for service both in new construction and for repairs to existing structures.

Paint adhesion test report. As coatings continue to cure the adhesive properties will change. A recent study by elcometer investigates the effects of deviating from the specified pull off adhesion test method. Paint adhesion test kit. In this test a coated specimen is biaxially stretched a given distance in an appropriate machine adhesive tape is applied to the deformed area dome and then pulled off and the amount of coating removed is compared with a photographic standard to determine the.

The adhesion test kit for paint and coatings contains all of the tools and materials needed except for the multi tooth cutter blade for conducting adhesion tests on paints applied to a flat uniform surface in accordance with astm test method d3359 method b and din standard no. Each aspect is examined in turn the results tabulated and the potential effect on a valid adhesion test result is discussed. 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 cutter which has of a number of blades at equal spacing is used to score through the coating down to the substate.

There are several different tests to measure the resistance of paints and coatings from substrates. Introduction the tensile pull off method for adhesion testing as outlined in astm d 4541 and similarly in bs en iso 4624 involves gluing a test dolly to the coated surface and then pulling the dolly by. Formability and adhesion testing of factory applied zinc rich primer chromate complex coatings on steel is described in astm 4146. Cross cut test scrape adhesion pull off test and others.

Some coatings will improve in adhesion as the coating continues to cross link other coating systems decrease in adhesion due to different rates of shrinkage between substrate or coating layers within the system. The elcometer cross hatch cutter is a simple means of assessing the adhesion or resistance to separation of coatings from substrates. Normally after 30 days a second test should be performed.