Evaluate your rubber abrasive wheel
Polishing is a daunting task and is often described as the work that people least like. Not only has the sander been improved to simplify the task, but the rubber abrasive wheel technology has also been significantly developed to improve grinding efficiency. Once you know which grit is needed, we will guide you through the selection of the power tool rubber abrasive wheel.
Is the more expensive rubber abrasive wheel worth it?
When you are working on an important project, if the completion is not correct, then all the hard work until then will be meaningless. Therefore, the accuracy of the rubber abrasive wheel is critical, and seven main characteristics need to be evaluated to achieve a perfect surface quality.
1) Substrate quality
The backing material must be strong enough to be stable, but at the same time flexible enough to move as needed. High quality backing materials will combine flexibility, stability and tear resistance.
Flexible rubber abrasive wheel
Flexible rubber abrasive wheel
Easy to cut and fold to the desired size
Greater flexibility
Gravel and coating will not break
Have more firm support
Scratched work surface
More brittle, easier to break
2) What is the actual sandpaper?
Poor quality sandpaper is often significantly different in appearance from the more expensive sandpaper. Look at the quality of the edge of the disc. Is it worn, cracked or peeled off? Bosch is concerned about the accuracy of the holes in the sanding disc, because even improper punching can affect the quality of the final product.
Innocent surface
Precision punching advantage
Better extraction
stable quality
No burr holes, no sand loss
Shortcomings of standard holes
Uneven edges can cause defects when matte
Reduced extraction performance
Sand falling from the edge will scratch the surface
3) What is the extraction effect?
Good extraction is essential when polishing with power tools, as it not only prevents you from inhaling harmful substances, but also extends the life of the rubber abrasive wheel. You can also better see the work surface for a more accurate surface finish.
Dust free
The perforations in the entire area of the disc allow for better dust removal because the air flow can pull material from the entire surface. This helps prevent stacking on the disc, thereby extending the life of the disc and is safer because it reduces dust deposition in the air.
BINIC also produces a porous rubber abrasive wheel that better removes dust and smooth surfaces without causing vortex marks due to build-up. Another major advantage of these discs is that you can use them with different types of sanders because you don’t have to match the holes to the holes in the machine. They will work with different sanders so there is no need to bother to align the holes.
4) Adhesive
The binder used to bond the rubber abrasive wheel to the lining is a key component in producing an effective rubber abrasive wheel. It is necessary to firmly fix the grit in the proper position without excessive force. There must be a balance between flexibility and hardness, because a harder binder means that the rubber abrasive wheel will be more aggressive and remove more material. If it is too hard, it will become brittle and more likely to break, resulting in the need to redo the area.
5) Gravel
Alumina is one of the most common minerals in rubber abrasive wheel grains due to its many uses. It breaks when heat and pressure are generated during the grinding process, it is tough and maintains its sharp edges. The scientific saying is fragility. This is beneficial when sanding, because shredding means the blade will be updated so you can use it longer without having to change the disc.
However, there are many different types of alumina that vary in quality and performance. It’s hard to determine the type on paper alone, so it’s often necessary to try different types and determine which type is best for you. In addition to alumina, there are other rubber abrasive wheel minerals for different tasks. For example, silicon carbide is effective on brittle surfaces such as tiles and glass.
How the grit is distributed on the board is also important for achieving a good finish. The quality meter will be evenly distributed and will be carefully monitored during the manufacturing process. The abrasive cut off saw reviews distribution is uneven and the material collects on the backing plate, which can cause it to clog and even burn the surface.
6) Coating
Some rubber abrasive wheel are also available with an additional coating such as stearate, which is best suited for sanding paints and varnishes. On the varnish, this prevents heat build-up and also bonds the varnish dust together for easier extraction and significantly longer rubber abrasive wheel life.
Rubber abrasive wheel with an electrostatic coating ensure even grain distribution with the sharpest edges facing out and ready to sand the mate