Arc Abrasives 35124TPL Psa Silicon Carbide Disc 8in 400G

Product Description

The ARC ABRASIVES 35124TPL is a pressure-sensitive adhesive (PSA) silicon carbide paper disc designed for wet or dry sanding applications in trade and industrial finishing work. Measuring 8 inches in diameter with a 400 grit rating, this disc uses a closed-coat, resin-bond construction over a C-weight paper backing. The silicon carbide abrasive cuts fast on hard surfaces and delivers consistent finish quality across metals, composites, and finish coats. Cases are packed at 100 discs, making this a practical stocking unit for shops and service professionals running high-volume surface prep or finishing operations.

This disc is suited for use on random orbital sanders, disc sanders, and finishing machines fitted with PSA platens. The waterproof backing makes it compatible with wet sanding processes, where water or light lubricant is used to reduce loading and extend disc life. At 400 grit, it is typically used for fine finish sanding, pre-polish prep, between-coat sanding on painted surfaces, and final smoothing on metal or composite substrates. Auto body technicians, fabricators, and finishing contractors are the primary installers and users of this product.

Key Features

• Silicon carbide abrasive for fast cutting on hard, dense surfaces
• Closed-coat construction for consistent scratch pattern and finish uniformity
• Waterproof C-weight paper backing supports wet and dry sanding
• Resin bond for durability under heat and moisture
• PSA mount for quick disc changes on compatible platens
• Packed 100 discs per case for high-volume applications

Compatibility

Designed for use with 8-inch PSA sanding platens on random orbital and disc finishing machines that accept pressure-sensitive adhesive backed discs.

Installation Notes

Applied by trade finishers, auto body technicians, and fabricators. Ensure the sanding platen is clean and free of adhesive residue before mounting a new disc, as contamination reduces bond strength. When wet sanding, verify that the machine and any electrical connections are rated for use in wet conditions per applicable safety standards. Discs should be discarded when loaded or worn rather than forced to continue cutting, as worn abrasive increases heat and reduces surface quality.

Technical Specifications

• Abrasive Material: Silicon Carbide
• Disc Diameter: 8 inches
• Grit: 400
• Backing Weight: C
• Coat Type: Closed
• Bond Type: Resin
• Attachment Style: PSA (Pressure-Sensitive Adhesive)
• Material Type: Coated
• Style: Waterproof
• Pack Quantity: 100 Discs per Case
• Unit Weight: 0.046 pounds

Standard Information

• Brand: ARC ABRASIVES
• Manufacturer Part Number: 35124TPL