Captured shot blasting is a highly effective surface preparation technique used in the line marking industry. It involves the process of propelling small steel shots at high velocity onto a surface to clean, roughen, or prepare it for the application of line markings. The “captured” aspect refers to the containment of dust and debris generated during the blasting process, ensuring a cleaner, more environmentally friendly operation.
How Captured Shot Blasting Works:
- Steel Shot Propulsion: In captured shot blasting, steel shots are propelled at high speed onto the surface using a blast wheel. The force of the shots impacts the surface, effectively removing old paint, dirt, oils, and other contaminants.
- Surface Texturing: As the steel shots strike the surface, they create a rough texture, which is ideal for improving the adhesion of new line marking paint. This is particularly important on smooth surfaces like concrete, where proper paint bonding is essential for durability.
- Dust and Debris Containment: One of the key benefits of captured shot blasting is its ability to contain the dust and debris produced during the process. The machine is equipped with a vacuum system that captures the dust and spent shots, recycling the steel shots for reuse. This containment ensures a cleaner work environment and reduces the risk of air pollution.
- Surface Inspection and Repeat: After the initial pass, the surface is inspected to ensure it meets the required standards for line marking. If necessary, the process can be repeated until the desired level of cleanliness and texture is achieved.
Application in Surface Preparation for Line Marking:
- Clean Surface: Captured shot blasting is excellent for thoroughly cleaning the surface, ensuring no contaminants remain that could affect the longevity or quality of the line markings.
- Improved Adhesion: By roughening the surface, captured shot blasting improves the paint’s adhesion, ensuring that the line markings are durable and less likely to peel or wear away quickly.
- Environmentally Friendly: The dust and debris containment aspect makes it a more environmentally responsible choice, especially in sensitive areas where dust control is crucial.
- Efficient and Effective: It is a fast and efficient method, allowing for large areas to be prepared in a relatively short time, which is particularly useful for projects with tight deadlines.
At CR Ltd, we use captured shot blasting as part of our comprehensive surface preparation process. This ensures that the surfaces are perfectly primed, allowing for crisp, long-lasting line markings. As one of the country’s leading line marking companies, we prioritise quality and efficiency, making sure every project is completed to the highest standard.