Flap Discs

What is a Flap Disc?

• Flap discs are constructed by layering coated abrasive flaps so they wear away and expose new, sharp grain
• Flap discs increase productivity and reduce total grinding and finishing costs by grinding, blending & finishing in 1 step

Backing Shape

Conical shape features (type 29):

• Built-in angle for increased contact area
• Best for use on contoured surfaces and edge work
• Minimizes workpiece gouging
• More aggressive stock removal due to higher angle
• 15°-25° working angle

Flat shape features (type 27):

• Best for use on miter joints, corners and edges
• Best choice for finishing intricate and ornate surfaces
• Ideal for smooth finishing
• 0°-15° working angle

Backing Type

Fiberglass backing features:

• Backing will wear uniformly with abrasive cloth
• Will not splinter or smear on the workpiece
• Lighter, quieter operation

Plastic backing features:

• Non-scratching, high strength backing
• Resistant to temperature extremes, common chemicals and solvents
• Some plastic backings are trimmable

Densities

High density flap discs contain approximately 40% more material than regular density flap discs.

Flap Discs vs. Grinding Wheels

• Faster stock removal and smoother finish
• Quieter operation and reduced vibration minimizing operator fatigue
• Cooler cutting, reduced loading and glazing
• Easy to use – reduced gouging and rework

Flap Discs vs. Fiber Discs

• Up to 20 times longer life than a fiber disc
• No backing pad needed
• Easier storage – no curling
• Flap discs should use one grit coarser than used in fiber discs (except 36 grit)
• More consistent finish