Holiday test pipeline coating

The holiday test is a testing system that is used to find out whether there are small holes or pinholes in a material. The material in question is a material that has been welded and coated on the material. Considering that in the weld material there is a layer reinforcement where the surface is uneven, to ensure that the coating on the welds of the material is perfect, the Holiday test is carried out to find out whether the coating has covered all layers of the material or not. This holiday test is usually carried out considering that usually in the coating process, the welded material is often found a layer that is not covered so that it is categorized as defective and must be repaired. Because if the holiday test is not carried out it will result in leakage of the material. These materials such as steel pipes, concrete pipes, oil tanks and others.