As a whole, the 10-disc set made of 180 and 320 grit scour flap discs is specifically developed to fill the gap between coarse grinding and fine surface preparation. With their 4.5-inch diameter, the discs were designed to work with all types of angle grinders (for example: Bosch, DeWalt) and allow users to condition or restore surfaces using high torque tools in a very precise manner. The scour flap discs are different than sandpaper and/or rigid grinding wheels since they have a non-woven nylon web impregnated with abrasives. Since the nylon web has no rigidity, it provides a comfortable cushioned interface to conform to the shape of your workpieces, so you don’t gouge or alter the shape of the original material when you’re removing surface contaminates.
By having two different grits available within this 10-disc set, users will be able to take their project through two distinct phases; first as a raw, oxidized item and then to a finished paint ready/prep/polished finish.
The 180-grit discs are intended to do most of the initial stock removal/rough cleaning work. For example: The 180-grit discs are great for removing years of corrosion/rust off of metal surfaces. In addition to being used as a rust remover, these discs can strip away old paint, and remove stubborn scale from metal surfaces. Due to the layered flap type design of the disc, it continually exposes fresh abrasives as it wears down and maintains a constant cutting rate until the end of life of the disc. Additionally, because of the layer flap type design, it facilitates airflow during operation. Airflow during operation is important when working on heat sensitive metals or thin sheet metals since it keeps the workpiece cool and eliminates the possibility of warping/discoloration. As such, the 180-girt phase is an essential step in preparation for welding/priming industrial components/automotive parts/metal furniture as it develops a consistent ’tooth’ on the surface for better coating adhesion.
Once you’ve transitioned to the 320-grit discs, you’ll be able to develop a much finer/satin like finish. The 320-grit scour wheels are best suited for light deburring/blending tool marks from prior grinding operations. If you’re using the 320-grit flaps on stainless steel/aluminum/brass, you’ll be able to create a consistent brushed finish (often preferred for architectural hardware/decorative metalwork). One of the advantages of using a flexible scour material is that it can get into small recesses/wrap around curved edges to ensure every angle of a complex part receives equal treatment.
Finally, due to the durability and efficiency of this 10-disc collection, users can complete large projects without interruptions. Users can simply switch out a worn-out disc for a new one. The fiberglass backing plate provides a solid base for absorbing vibrations eliminating user fatigue when completing extended periods of sanding/powder polishing. Maintaining control over a steadying hand is important to maintain consistency and professionalism/evenness across the entire surface.
These scour flap discs offer a practical alternative to other methods of rust removal and surface preparation. The elimination of hand-sanding steps combined with a fast/powerful method of sanding/powder polishing make them indispensable assets for any workshop dedicated to restoration/fabrication/maintenance.
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