40 Grit Ceramic, 6 in. PSAdhesive Sanding Disc - Qty:5

40 Grit Ceramic, 6-in. Pressure Sensitive Adhesive Sanding Disc - QTY:5

Diablo's premium 6-in. 40-Grit Ultra Coarse Random Orbital Sanding Discs are designed for fast leveling, shaping, stripping, and extra-heavy material removal. Featuring a premium ceramic grain blend and industrial-grade StickFast™ PSA backing, these sanding discs deliver aggressive cutting performance, a secure bond, and extended sanding life for demanding woodworking, metalworking, and surface-preparation applications.

• Premium Ceramic Grain Blend provides fast material removal, consistent cutting performance, and long sanding life.
• StickFast™ PSA Backing features an industrial-grade pressure-sensitive adhesive for a strong, secure bond to the sander pad.
• Clog-SHIELD™ grinding agents help reduce pitch buildup and abrasive loading for improved productivity and longer disc life.
• ENDURA-BOND™ bonding technology provides exceptional grain retention, durability, and extended abrasive life.
• 40-Grit Ultra Coarse Abrasive is ideal for aggressive stock removal, stripping, shaping, and leveling.
• 6-in. Size is designed for compatible random orbital and dual-action (DA) sanders.
• Versatile Applications include wood, metal, and plastics.

Built for Aggressive Sanding and Surface Preparation

The premium ceramic abrasive blend is engineered for applications where rapid material removal is the priority. The 40-grit ultra-coarse surface quickly levels uneven areas, removes coatings, and shapes materials while maintaining durable cutting performance. Clog-SHIELD™ helps minimize loading and pitch buildup, allowing the abrasive to continue cutting efficiently during demanding sanding operations.

StickFast™ PSA backing provides a reliable adhesive connection between the sanding disc and compatible sanding pad. Combined with Diablo's ENDURA-BOND™ technology, the abrasive construction is designed to withstand heavy sanding and provide dependable performance throughout the life of the disc.

Ideal For

Fast leveling, shaping, extra-heavy material removal, stripping, and aggressive surface preparation.

Suggested Projects

• Paint and coating refinishing
• Deck surface preparation and reconditioning
• Floor refinishing
• Wood furniture building and refinishing
• General project construction
• Heavy-duty wood, metal, and plastic surface preparation

Compatible Applications

Designed for use with compatible 6-in. orbital and dual-action (DA) sanders. The coarse ceramic abrasive is particularly well suited for applications requiring aggressive stock removal and dimensioning before progressing to finer grits for intermediate and finish sanding.

Technical Specifications

• Disc Size: 6-in.
• Grit: 40
• Grit Grade: Ultra Coarse
• Abrasive: Ceramic Blend
• Backing: StickFast™ Pressure Sensitive Adhesive (PSA)
• Pack Quantity: 5 Discs
• Compatible Sanders: Orbital and DA Sanders
• Suitable Materials: Wood, Metal, and Plastics

Understanding Ceramic Abrasives

Ceramic abrasives are engineered for demanding grinding and sanding applications where aggressive material removal and durability are important. Ceramic grain is produced through a chemical bonding process that creates a porous, structured abrasive grain capable of maintaining effective cutting performance. Different ceramic formulations can vary in strength and performance, with higher ceramic content generally providing increased durability and cutting capability.

Ceramic abrasives are especially valuable in coarse grits where significant material removal, leveling, shaping, or dimensioning is required. For intermediate and finishing applications, other abrasive types such as aluminum oxide (AO) or silicon carbide (SC) may be better suited depending on the material and desired finish.

Abrasive Grain Color

Natural abrasive grain colors can vary by abrasive type. Aluminum oxide (AO) may appear brown, pink, or white; silicon carbide (SC) is typically black; ceramic AZ may appear blue or blue-gray; and ceramic grain is commonly white. However, grain color should not be used as a reliable way to identify abrasive type.

Abrasive manufacturers can add dyes to the size coat during production, changing the apparent color of the finished abrasive. Stearates, lubricants, and other coatings can also affect the visible grain color. Always select an abrasive based on the application, material being sanded, desired removal rate, and sanding equipment rather than color alone.