What angle do you use the flapper disc when polishing?
Proper Grinding Angle and Surface Type 27 flap discs should be used at 0°-15° angle and Type 29 flap discs should be used at 15°-25° angle to the workpiece. Do not use flat or on the edge.
What is the flap disc used for on a grinder?
A flap disc is an abrasive product designed for right-angle grinder applications that consists of overlapping abrasive “flaps” glued radially to a backing plate. Flap discs became popular for benefits like fast stock removal and the ability to perform grinding, blending, and finishing in one product.
What grit flap disc should I use?
You should use a flap disc one or two grits coarser than a conventional disc for best results. Discs with higher density last longer, but a standard density disc offers the ability to be more aggressive in stock removal. A quality abrasive offers longer life, avoiding the need to frequently change discs.
Can you cut with a flap disc?
A flap disc being trimmed using a sharp metal corner. backing, you can damage or ultimately cut through the flaps. “First-time users may question the safety of performing the process and can be reluctant to try it,” Hopkins notes.
Can you use a flap disc on aluminum?
It turns out, flap discs are possibly the best grinding discs for aluminum. By design, flap disks grind metal surfaces at much lower temperatures than other abrasive discs.
Are flap discs any good?
Flap discs are generally the best abrasive wheel for fast stock removal and provide grinding, blending and finishing with one product. Other flap discs on the market made from using aluminium oxide abrasive ribbon are not suitable for use on stainless steel.
Can you use a flap disc on concrete?
Flap discs for concrete: You’ll need silicon carbide or diamond flap discs for aggressive stock removal on concrete. Silicon carbide and diamond are some of the hardest materials in the world. Using these discs will allow you to work on concrete surfaces without the need for high pressure.
Why should you not grind aluminum?
In particular, the big no-no with grinders is aluminum. Aluminum melts easily, and if you were to try to grind down aluminum, it would start to melt and the aluminum would coat the wheel. But this will only cause more friction and heat up the wheel faster. If the wheel heats up enough, it can explode.
Can I use flap disc on concrete?