Mirka Iridium 5" Solid PSA Sanding Discs, 24-314 Series

Product Overview

Mirka Iridium 5" Solid PSA Sanding Discs (24‑314 Series) are premium high‑performance sanding discs engineered for fast cutting, long life, and exceptional finish quality. Designed for universal sanding across automotive, marine, woodworking, composite, and industrial applications, Iridium delivers a smoother finish with fewer sanding steps.

Iridium uses a premium ceramic and aluminum oxide grain blend for fast, efficient cutting, providing an aggressive initial cut and maintaining sharpness throughout the sanding process. A dust‑repellent precision coating reduces clogging and pilling, keeping the abrasive cutting clean longer and improving finish consistency.

These discs feature a PSA (pressure sensitive adhesive) backing that adheres securely to any 5" smooth vinyl‑face PSA backing pad. The solid (non‑vacuum) design is ideal for applications where dust extraction is not required or when used on non‑vacuum sanding tools.

Packaging: 100 discs per link‑roll box
Grit Range: 80 to 1,000

Key Features & Benefits

• Premium ceramic + aluminum oxide grain blend for fast, efficient cutting
• PSA backing provides secure adhesion and quick disc changes
• Solid (non‑vacuum) design for smooth‑pad sanding applications
• Dust‑repellent precision coating reduces clogging and pilling
• Flexible latex C‑paper backing for durability and control
• Low VOC resin system improves grain adhesion and safety
• Consistent scratch pattern for reliable surface preparation
• Excellent performance on soft and hard surfaces

SMSDistributors.com Expert Notes

Mirka Iridium 5" PSA Discs are ideal for technicians who prefer PSA attachment for consistent adhesion and ultra‑flat sanding. The ceramic/aluminum oxide blend provides a noticeably more aggressive initial cut compared to standard aluminum oxide discs, making Iridium perfect for stock removal, leveling filler, paint removal, and intermediate sanding.

The dust‑repellent precision coating keeps the abrasive cutting clean longer, especially on primers, paints, and composite materials. Iridium’s flexible latex C‑paper backing maintains strong grain adhesion even under heavy use, and the discs perform exceptionally well on both soft and hard surfaces.

For shops looking to reduce sanding steps, improve consistency, and increase abrasive life, Iridium is one of Mirka’s most advanced PSA sanding disc families.

Technical Specifications

• Size: 5"
• Grain: Ceramic + Aluminum Oxide
• Color: Gray
• Attachment: PSA (pressure sensitive adhesive)
• Backing: Latex C‑weight paper
• Bonding: Low VOC resin system
• Vacuum Pattern: Solid (no holes)
• Grits: 80–1,000
• Coating: Semi‑open
• Quantity: 100 discs per link‑roll box

Grit Selection Guide

• 80–120 grit: Heavy stock removal, shaping, paint removal
• 150–240 grit: Leveling filler, intermediate sanding
• 320–400 grit: Surface prep, smoothing wood and composites
• 600–1,000 grit: Fine finishing, clear coat prep, blending

Best For

• Automotive bodywork and refinishing
• Marine gelcoat and composite sanding
• Woodworking and furniture finishing
• Paint removal and surface preparation
• Solid surface and countertop fabrication
• General sanding across soft and hard materials

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About Us

SMSDistributors.com is an authorized Mirka distributor supplying professional‑grade abrasives, sanding tools, and surface preparation products for automotive, marine, woodworking, and industrial applications. With over 15 years of experience, we provide fast shipping, expert support, and reliable products trusted by professionals nationwide.

Category: Mirka, Iridium, Sanding Discs, PSA Discs, Ceramic Abrasives