A best-in-class abrasive for a variety of applications
Anti-loading coating prevents dust and debris from clogging the cutting surface
Discs available in mutli-hole pattern for excellent dust extraction or in no-hole format
Engineered ceramic mineral blend is balanced for maximum abrasive performance in its class
Upgraded resins improve durability and finish
The 3M Hookit Blue Abrasive Disc 321U delivers best-in-class performance at every stage of paint prep and coatings removal. Premium aluminum oxide mineral abrasive is blended with ceramic grain for a full range of sanding applications. The multi-hole discs feature a specially-designed pattern that reduces loading, extends disc life and aligns with most backup pads. Hookit attachment makes disc changes easy. Best-in-Class Performance in Every Grade
Part of our full line of 3M Blue Abrasives, the 3M Hookit Blue Abrasive Disc is engineered for best-in-class cut, life and efficiency across your entire shop. The disc features a tough ceramic blended with premium aluminum oxide mineral for just the right balance. 3M Blue Abrasives deliver consistently excellent results in a minimum amount of time, on jobs ranging from aggressive paint removal and fresh filler sanding to blend preparation and sanding primer. Discs are available in a wide range of sizes and grades.
Dust Extraction and Anti-Loading Features Enhance Performance and Life
The multi-hole pattern discs are specially designed to capture dust and keep it away from the abrasive surface. This specially-designed hole pattern reduces loading and extracts dust more efficiently compared to standard 6- or 7-hole disc configurations. It includes alignment guides across the disc, making it fast and easy to align with nearly any backup pad. The mineral blend on the 3M Hookit Blue Abrasive Disc is bonded using upgraded resins for enhanced durability. An anti-loading coating helps keep dust from gathering between the abrasive grains for a faster cut and for consistent performance throughout the life of the disc.
Our Hookit Attachment System
The Hookit attachment system has a hook-and-loop feature which makes disc attachment, removal, and re-attachment clean and easy. It also facilitates use and re-use of the disc for maximum product life. Hookit discs have a brushed nylon loop backing of the type most commonly used in everyday hook-and-loop applications. 3M Hookit disc pads (sold separately) feature hooks which grip the brushed nylon loop backing. It’s simple: just attach the disc and start sanding. The disc removes just as cleanly and easily. The Hookit system is designed for work spaces and applications where adhesive backed discs may become contaminated by dust, dirt, or debris.
Better Science for Better Sanding from 3M
Our 3M Blue Abrasives family is designed as a cost-effective, high-performance upgrade for any sanding application in coatings removal and paint preparation. From its balanced, engineered mineral blend to its multi-hole pattern option for dust extraction, our 3M Hookit Blue Abrasive Disc is another way that 3M applies science to deliver best-in-class performance for professionals.
Trusted 3M Hookit Quality
The 3M Hookit Blue Abrasive Disc Multi-hole, model 36142, is designed to deliver reliable performance. This 3-inch disc is part of 3M’s well-known Hookit system, making attachment and removal quick and clean.
Its hook-and-loop backing ensures easy use and re-use, ideal for professionals who need efficient sanding solutions. The 36142 model is a proven choice for consistent results in various sanding tasks.
Optimized Abrasive Grade
These discs come in an 80 grade, offering a balanced abrasive strength for effective paint prep and coatings removal. The grade is carefully chosen to provide a good cut rate without sacrificing finish quality.
Whether sanding fresh filler or primer, the 80 grade helps achieve smooth surfaces quickly. This grade fits well in many workshop applications where moderate aggressiveness is needed.
Multi-Hole Dust Control
The multi-hole pattern on these 3-inch discs enhances dust extraction, keeping the abrasive surface clear. This design reduces clogging and extends disc life, improving overall sanding efficiency.
Compared to standard hole patterns, the multi-hole layout aligns with most backup pads and includes alignment guides. This makes it easier to set up and maintain dust-free sanding conditions.
Durable Ceramic Blend
Engineered with a ceramic mineral blend, these discs balance durability and abrasive performance. The upgraded resins improve the disc’s lifespan and maintain a consistent finish throughout use.
This blend is ideal for aggressive paint removal and fine sanding tasks. It ensures the 3M Hookit Blue Abrasive Disc performs well across different surfaces and applications.
Bulk Packaging Convenience
Each carton contains 50 discs, and the product is sold in cases of 4 cartons. This packaging suits busy shops needing a steady supply of 3-inch abrasive discs for ongoing projects.
The pack count supports efficient inventory management and reduces frequent reordering. Having 200 discs per case ensures you’re ready for large or multiple jobs without interruption.
