Frequently Asked Questions (FAQs)
1. What are fiber discs used for?
Fiber discs are commonly used for grinding purposes, offering heavy-duty coated abrasive discs with resin over resin construction. They are designed for general applications, ranging from heavy stock removal to surface blending. Fiber discs are typically used with a back-up pad on portable angle grinders.
2. What is a fiber disc backing pad?
A fiber disc backing pad is a high-quality plastic pad that is used in conjunction with fiber discs. These pads feature spiral raised ribs for cooling during use and air holes to provide additional cooling and extend the life of the fiber discs.
3. What is the difference between a fiber disc and a flap disc?
The main difference between a fiber disc and a flap disc lies in their flexibility and finish. Fiber discs, when used with a soft or medium density back-up pad, allow for feathering the area at a faster pace. Flap discs, on the other hand, are more rigid but provide a nicer finish when compared to a fiber disc at the same grit level.
4. What are the different types of abrasive discs?
There are different types of abrasive discs available. Conventional abrasive cutting discs are made from aluminum oxide, silicon carbide, or a mixture of aluminum oxide and zirconium. These discs are suitable for working with soft, hard, and semi-hard materials.
5. What are Sandnet discs used for?
Sandnet discs can be used in various applications where a standard sanding disc would be used. They are suitable for sanding wood, metal, plastics, and other solid surfaces.
6. What are backing pads used for?
Backing pads are attachments used to secure sanding discs and other accessories on power tools. They provide cushioning and ensure the disc's entire surface area is available for the project, resulting in a more even finish.
7. When should you throw away a flap disc?
Flap discs should be replaced when the grains deplete and lose their cutting ability. As the flaps wear away, fresh and sharp grains are exposed. With proper use, flap discs can be used until the cloth is nearly worn down to the back plate. They are designed for use on right-angle grinders at various angles.
8. What is the advantage of flap disc?
Flap discs offer several advantages, including fast stock removal and the ability to grind, blend, and finish with a single product. They can improve project timelines without compromising results. When working with metal and aiming for a smooth finish, it is generally better to use a flap disc over a grinding wheel.