When to use SB belts
SB belts also know as non woven belts are the best choice for achieving smooth brushed finishes and concealing minor surface imperfections. However, they are not suitable for every stage of the process. Learn when and why to use SB belts for optimal results.
When it comes to abrasive belts, most people think of heavy-duty belts made with coarse abrasive materials. However, SB belts serve a different purpose—they are not designed to remove large amounts of material but to create a smooth, even finish, especially on metal surfaces. Their open, 3D structure allows the belt to adapt to the surface, smoothing the material without leaving deep scratches.
So, when is the right time to use SB belts? Let's take a look at key scenarios where these belts significantly enhance finishing and when it’s better not to use them.
1. Final finishing and surface refinement
SB belts are excellent for final finishing. If you want a surface to look aesthetically flawless and evenly processed, SB belts are the right choice. One of their key advantages is their ability to hide minor surface imperfections, such as small scratches or inconsistencies left from previous grinding stages. This makes them ideal for tasks where a visually perfect appearance is essential.
For example, if you have already ground stainless steel or aluminum with more aggressive belts, you can use an SB belt to create a smooth, satin finish. The ability of SB belts to smooth and refine the surface without damaging the material is especially valuable for projects requiring a refined visual finish, such as architectural metal elements, stainless steel kitchen appliances, or aluminum components.
2. Preparation for painting or coatings
Another use for SB belts is surface preparation for painting or coating. After processing a surface with coarser grits, the finish may still be uneven or contain small imperfections. For instance, if you've worked with grits around 80 to 100, an SB belt can help smooth the surface and prepare it for the application of paint or coating.
This is particularly useful for metal surfaces that will be painted or coated. SB belts not only remove minor imperfections but also create a texture that allows the coating to adhere better to the material, ensuring a longer-lasting finish.
3. When not to use SB belts
While SB belts are excellent for final finishing, they are not suitable for every stage. A common mistake is using them too early in the grinding process. SB belts are not designed to remove large amounts of material. If you start with an SB belt before properly leveling the surface with more aggressive belts, you will end up with inconsistencies that the SB belt cannot correct.
Additionally, SB belts are not suitable for surfaces that will be polished or chrome-plated. If your goal is to achieve a mirror-like finish, it is essential to gradually increase the grit size with standard abrasive belts. Skipping directly to an SB belt can leave scratches that make polishing difficult.
Conclusion: Refining the finish with SB belts
SB belts are indispensable when it comes to creating smooth, refined finishes and concealing minor surface imperfections. They are perfect for final processing stages and for preparing surfaces for painting or coating. However, they should not be used for heavy grinding or as a substitute for standard abrasive belts when aiming for a polished surface.
If you're unsure whether SB belts are the right choice for your project, contact our team of experts. We’ll help you select the right tools to achieve the best possible results.