FP 574 Silicon Carbide F Weight Paper Disc

The FP 574 is a silicon carbide paper disc on F-weight backing with semi-open coat, for sanding non-ferrous metals, primers, fillers, and hard coatings where the sharper fracture of SiC grain is needed over Aluminum Oxide. Silicon carbide’s crystal structure cuts harder, denser substrates more cleanly than aluminium oxide — it’s the grain the automotive refinish and composite trades have used for primer and filler sanding for decades.

Key Specifications

Dimension Custom

Backing material F - weight paper

Abrasive Grains Silicon Carbide

Coating Semi-Open Coat

Additional Information

Bond Type Resin

Grit Range Extra Coarse to Medium

Grit Range

100

120

Brand: CUMI

Information Material:

Product Catalogue

Additional Details

Product Information

Features

- Silicon carbide grain on F-weight paper backing with semi-open coat

- SiC grain cuts non-ferrous metals, primers, fillers, and hard coatings more cleanly than Aluminum Oxide at equivalent grit

- Hook & Loop compatible for random orbital sander use

Benefits

- SiC grain cuts harder, denser surfaces — primers, fillers, and non-ferrous metals — more efficiently than Aluminum Oxide, with a cleaner scratch pattern at equivalent grit size

- Semi-open coat resists loading on filler and primer substrates — disc cuts longer before the grain surface becomes ineffective

- F-weight paper provides the consistent backing stiffness that random orbital sanding on panels and flat surfaces requires

Advantages

- Silicon carbide is the correct grain for primer and filler sanding — its harder crystal structure cuts the dense binding resins in automotive fillers that Aluminum Oxide struggles to penetrate cleanly

Product Uses