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SKU 7100091038
Legacy SKU UU004899868
UPC 00051131361898
Part Number 36189
Product Number 321U

The 3M™ Hookit™ Blue Abrasive Sheet Rolls 321U delivers best-in-class performance at every stage of paint prep and body repair. Premium aluminum oxide mineral is blended with ceramic grain for a full range of automotive sanding jobs. A specially-designed multi-hole pattern captures dust, reduces loading and extends sheet life. Perforated Hookit™ sheets are easily sized to reduce product waste.

  • A best-in-class abrasive sheet roll for a variety of applications
  • Engineered ceramic mineral blend is balanced for maximum abrasive performance in its class
  • Multi-hole pattern delivers excellent dust extraction and reduces loading
  • Upgraded resins improve durability and finish
  • Hookit™ sheets are easy to attach, remove and reuse
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On it's way to you October 12   


Minimum Order 4 Items
Order Increment 4 Items
  Immense Durability
  Reduces Abrasive Costs
  Lowest Price Per Item
Product Dimensions
Imperial Metric
Weight 1.056 LBS
Width 2-3/4 in 69.85 mm
Length 13 yd 11.8872 m
Shipping Dimensions
Weight 4.51 lb
Length 13.25 in
Width 5.875 in
Height 6.25 in
Color Blue
Grit 120


  1. What is the size of the 3M™ Hookit™ Blue Abrasive Sheet Roll Multi-hole, 36189?

    The size of this abrasive sheet roll is 2.75 inches wide and 13 yards long.

  2. What grit level does the 3M™ Hookit™ Blue Abrasive Sheet Roll Multi-hole, 36189 have?

    This particular model has a grit level of 120.

  3. How many cartons come in a case for the product number #36189?

    There are four cartons included in each case for this product number.

  4. Is this product made specifically for hand sanding or can it be used with machinery as well?

    Yes, you can use either manual or machine methods to apply this abrasives contour sheets to most work surfaces effectively.

  5. . Does this abrasives sheet roll include multiple holes and if so how many per sheet are there?

    . Yes, multi-holes design help offer improved dust extraction that helps keep your tool's surface clean during various grinding activities and applications. Furthermore ,this specific model includes up to seventeen holes per individual sheet/strip.'

For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
Best-in-Class Performance on a Wide Range of Jobs

Part of a full line of 3M™ Blue Abrasives, the 3M™ Hookit™ Blue Abrasive Sheet Rolls is engineered for best-in-class cut, life and efficiency across your entire shop. The sheet roll features a tough ceramic blended with premium aluminum oxide mineral that provides 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. The 3M™ Hookit™ Blue Abrasive Sheet Rolls is bonded using upgraded resins for enhanced durability. Sheet rolls are available in a wide range of grades. The sheets are perforated, which makes it easy to choose desired lengths for hand files or blocks without fold-over for reduced product waste.

Dust Extraction Features Enhance Abrasive Life

The multi-hole pattern on this sheet roll is 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 hole configurations. An anti-loading coating across the abrasive surface helps keep dust from gathering between the abrasive grains for a faster cut and for consistent performance throughout the life of the sheet.

The Hookit™ Attachment System

The Hookit™ attachment system has a hook-and-loop feature which makes sheet attachment, removal, and re-attachment clean and easy. It also facilitates use and re-use of the sheet for maximum product life. Hookit™ sheets have a brushed nylon loop backing of the type most commonly used in everyday hook-and-loop applications. A range of Hookit™ file boards and blocks, such as the 3M™ Hookit™ Sanding Block Dust Free PN 05208 or 3M™ Hookit™ Hand Block PN 05741 (both sold separately), feature hooks which grip the brushed nylon loop backing. It's simple: just attach the sheet and start sanding. The sheet removes just as cleanly and easily. The Hookit™ system is designed for work spaces and applications where adhesive backed abrasives may become contaminated by dust, dirt, or debris.

Better Science for Better Sanding from 3M

The 3M™ Blue Abrasives family is designed as a cost-effective, high-performance upgrade for any sanding application in body repair and paint preparation. From its balanced, engineered mineral blend to its multi-hole pattern for dust extraction, the 3M™ Hookit™ Blue Abrasive Sheet Rolls is another way that 3M applies science to deliver best-in-class performance for professionals in paint preparation and auto repair.

Brochures, Catalogs & Data Sheets
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