Sandblasting And Painting

Sandblasting

Sandblasting is generally a type of abrasion applied to the raw state of steel constructions. It cleans the surface of welding, oil and similar chemical residues. It creates a clean and suitable surface that will be durable for protective coatings by roughening the surface.

The sandblasting process is graded according to the degree to which unwanted formations on the surface of the steel are cleaned and to what extent the surface is roughened. There are standard grading norms in the world. In Turkey, SA 1, SA 2, SA 2.5, SA 3 degrees are used. These degrees are defined as “Swedish Standards Airblast”.

SA 1: It is a superficial cleaning method that is only valid on rusted surfaces and is generally called sweeping. It is the norm that has no effect on painted surfaces.

SA 2: It is a sandblasting degree in which the steel is quite cleaned and the rusted surface is quite roughened.

SA 2.5: It is the standard SA norm preferred in steel surfaces where the steel surface is very well roughened, almost all of the unwanted formations are cleaned, the unique gray color of the steel is easily seen and painted and requiring revision.

SA 3: It is a sandblasting degree where the steel surface is very well roughened, unwanted formations are completely cleaned, and the unique gray color of the steel is completely revealed.

In addition to its main business lines, Pygment Epoxy Techniques also provides consultancy services to various companies on project execution and facility creation.

Many international project activities have been carried out and high-performance and quality productions have been realized.

Painting

It is a surface coating method that varies according to the projects. Epoxy paint type can be given as an example for aesthetic design and shiny coatings on steel surfaces. In steel surface works, it is very important for the micron measurements requested in the specifications of the projects to be formed or to be the same in proportion to the truth. Each type of paint should be selected according to the environments in which it is applied and where the material will generally be used. Epoxy paint type is generally selected for long-lasting and high-quality in industrial activities.

Painting process; When it is assumed that it will be applied to a steel structure/material used in hot climates and will definitely be exposed to high levels of Ultraviolet (UV) rays, the ideal paint type for this environment is the paint type consisting of epoxy resin. If this process is done correctly by an expert, the material/project life will be extended up to 20 years. Micron distributions should also be determined by the expert according to the environment and conditions.

Sandblasting and painting processes should be a permanent application that requires an R&D plan that cannot be reduced to simple before the project. The environment, conditions and possible risks must be fully determined, the site must be prepared and expert practitioners must put all these measures into action. It is a more appropriate attitude to act in coordination with the investor/customer in all steps of the project. Sandblasting and painting processes have activity periods and the processes must be completed without wasting time during this period. If the weather and site conditions are not suitable for the process, the site must be made suitable or a project scheduler must be added. All this organization, technical knowledge and team working together is proven by experience at Pygment Epoxy Techniques.

Fields of Activity

The “sand” materials used for sandblasting vary according to the field of activity and the form of the surface. In the industrial sector, the easy and effective abrasion process of the steel surface is mostly done with “silica” and “slag” materials.

Application methods are one of the issues that vary as much as the material. Sandblasting has more than one application form/method. Today, the method we call “wet sandblasting” is used especially for the restoration of living spaces and historical places, in environments where the community is busy and in order to cause less damage in the applied area. This method allows water and sand to perform an abrasive process on the surface simultaneously by air spraying.