Surface preparation is critical, especially when it comes to treating a material’s surface prior to coating application, the use of adhesives, and other activities. How many stages are required to complete a procedure for this preparation, and what information must be noted at each step?
General information to conduct a surface preparation for any application
To achieve the greatest results, the first step is to understand surface preparation information, including its purpose, technique, process, and special considerations, before formally conducting it.
What is surface preparation? Why does it matter for construction?
Surface preparation is the process of preparing a product’s surface to increase its adhesion to coatings. The quality of surface treatment is the single most critical function that determines coating performance. This method can usually be accomplished either mechanically or chemically.
Preparation is essential before coating, welding, and other procedures to ensure efficient performance. There are numerous preparation procedures, each with its own set of advantages and disadvantages in terms of efficacy and cost. The more detailed the cleaning stages, the more expensive the technique. In other cases, several surface cleaning techniques, such as solvent cleaning to remove oils before abrasive cleaning, followed by jet washing to remove any remaining dust particles, should be utilized.
How many essential steps to perform surface preparation to get the best outcome for any structures?
Surface preparation is used for various structures, and have you ever known ways to apply this technique to construction? If the answer is not yet, these steps below will help you.
In general, there are five main steps, which can be adjusted based on the characteristics of building materials or structures.
- Step 1: Preparation
- Check required specifications and related standard code.
- Choose the correct abrasive, including checking type, size & other factors to make sure everything meets the requirements.
- Prepare air and equipment supply.
- Step 2: Pre-surface preparation
- Check sharp edges, weld spatter, and masking none blasting areas.
- Remove oil, grease, eliminate loose deposits and contaminations.
- Conduct cleanliness of abrasive
- Check climatic conditions such as air temperature, metal temperature, and air dew point. One thing needed to notice is the metal temperature shall be at least 3°C above the surrounding air dew point, and the relative humidity shall not exceed 85%).
- Step 3: Perform surface blasting
- Step 4: Cleaning and removing dust (know as post surface preparation step)
- Step 5: Inspection stage
- Surface cleanliness.
- Dust test
- Salt contamination test
Each step should be directly completed and supervised by a team of experienced intensive experts, ensuring every detailed step is done perfectly.
3. Which special notes about application equipment and technique to perform surface preparation should be noticed?
The coating manufacturer’s recommended application equipment and techniques used for surface preparation are often based on test results from equipment manufacturers, test applications, and field expertise gathered under a variety of task conditions. The manufacturer’s suggested equipment, pressure settings, and application techniques will usually allow for satisfactory coating application under most task conditions. The applicator can change the equipment, pressure settings, and method as long as correct atomization and application characteristics are not impacted. It is advised that the coating manufacturer be consulted for uncommon or specialty applications.
It is critical that tools and equipment are clean and in good working order. Dirty tools and equipment can cause coating contamination, and broken or worn-out equipment may not be suitable for use. Frequently, the material is blamed for application issues when the real issue is the use of incorrect or defective equipment.