The Daily Grind is the ARC Abrasives, Inc. blog that showcases any news, case studies, and upcoming events for the company and consumers. Start by reading any of the posts below.

Flap Discs: Product Spotlight

Flap discs are a 3D product that consists of abrasive flaps glued radially to a backing plate. While the product wears down, new abrasive is exposed. Zirconia is the most common grain for these discs due to the cool-cutting action and competitive price.

construction of flap discs
Flap Disc Performance
These abrasive products are utilized through heavy stock and weld removal in the industry. While resin fiber discs can get the job done, a flap disc has an increased lifespan that surpasses the relative product. It is recommended to use a coarser flap disc in order to achieve a similar finish of a resin fiber disc. For instance, if an operator is using a resin fiber disc of 60 grit, try a 40 grit flap disc for a more agile performance.

Backing Plate
The backing plates come with either aluminum, fiberglass, or trimmable plastic. While fiberglass is the most common, aluminum is chosen more frequently due to ease of safety. Plastic backings are becoming more popular with some manufacturers, advising that the plastic can be trimmed to increase working life.

Shape
A flap disc is broken down into a flat or angle face. Following grinding terminology, flap discs are considered a type 27, while angle discs are known as a type 29. Angle faced discs are suited for stock removal due to their aggressive performance, and flat faced discs are more befitting on flat surfaces for a more consistent finish.

flap discs and performance
Arbor
A flap disc comes with a plain circular arbor that requires a locking nut, or a 5/8-11 threaded hub which allows for a quick changeover.

Density
The products are available as a regular or high density product. High density discs, often called jumbo discs, have more flaps and are more broad. While they may last longer due to the extra material, they tend to be less aggressive and are not recommended for heavy stock removal.

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Case Study: Boat Engines and Resin Fiber Discs

APEX Ceramic resin fiber discs were recently involved in a case study to help resolve an issue for a leading manufacturer. For a more in-depth analysis, download the white paper and read about how ARC helped remove steps in the process to improve performance and further impact their bottom line.
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Employee Spotlight: MELISSA BRASHEARS AND BILLY QUEEN


Melissa Brashears, Customer Service Rep
Meet Melissa Brashears. Melissa has maintained a 13 year career in Customer Service at ARC. She is an important liaison between customers and the outside sales team by managing specific territories, generating quotes and order entries, providing customer follow ups, and maintaining backlogs.
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PSA Discs: Product Spotlight

PSA and Hook and Loop are fastening systems to allow cloth, paper and film abrasive discs to be quickly attached and removed from a backup pad. PSA discs are more common in the USA whilst Hook and Loop is popular in Europe and is becoming more popular in the USA.
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Belts and Progressive Die Stamping

Belts are used in multiple applications from fine finishing of stainless steel coil to heavy stock and weld removal. In general heavy weight Y-weight are used for stock removal whilst flexible J-weight is used for fine finishing and contour work.
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