| SKU | 7100363665 |
|---|---|
| Legacy SKU | 60450001122 |
| UPC | 00068060061812 |
| Catalog Number | 36581 |
| Product Number | 521U |
3M Stikit Blue Abrasive Disc 521U is a paper-backed abrasive disc with excellent performance and cut. It is available in a range of grades and sizes.
- Excellent cut rate and performance
- E-weight paper backing is highly durable and withstands wear, pressure and damage
- Stikit™ system for simple, secure application
- Available in a variety of sizes and grades.
Product Dimensions |
Imperial | Metric |
| Weight | 3.521 lbs | |
|---|---|---|
| Width | 2.99213 in | |
| Length | 8.11024 in | |
| Height | 8.11024 in | |
| Diameter | 8 in | 203 mm |
| Center Hole Diameter | 0.0 NP |
Shipping Dimensions |
|
| Weight | 14.83998 lb |
|---|---|
| Length | 13.38583 in |
| Width | 8.85827 in |
| Height | 9.25197 in |
| Color | Blue |
|---|---|
| Maximum Speed | 6,000 rpm |
PRODUCT FAQ
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What materials can I use the 3M™ Stikit™ Blue Abrasive Disc 36581 on?
You can use this disc on a variety of surfaces, including metal, paint, primer, fiberglass, and plastic. It’s excellent for automotive and industrial sanding applications!
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How does this abrasive disc attach to my sander?
The Stikit™ discs feature a pressure-sensitive adhesive backing—just peel off the liner and stick it right onto your sanding tool. It’s quick and easy!
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Is the 40E grade suitable for heavy material removal?
Yes! The 40E grit is quite coarse and perfect for fast cutting or removing tough materials like old paint or rust.
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Are there dust holes in these discs?
These specific discs have no holes—they are solid blue abrasive discs designed without any vacuum or dust extraction holes.
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How many discs do I get with one case purchase?
Each case comes with 4 cartons containing 50 discs each—that's a total of 200 high-performance abrasive discs per case!
The 3M™ Stikit™ Blue Abrasive Disc 521U is expertly engineered for use in collision repair applications, making it an ideal choice for sanding a variety of substrates such as paint, primer, metal, and composite materials. This versatile abrasive disc is designed to deliver consistent, high-quality results across multiple surfaces, ensuring a smooth and efficient sanding process.
Constructed with a robust E-weight paper backing, the 521U disc offers exceptional durability and resistance to tearing, even during aggressive sanding tasks. Its fast-cutting abrasive grains are optimized to provide a superior cut rate, helping technicians achieve desired finishes more quickly while maintaining long-lasting performance throughout the job.
The innovative 3M™ Stikit™ system features a pressure-sensitive adhesive coating on the back of each disc, allowing for quick and effortless attachment to sanding tools. This convenient design also enables easy removal and reapplication, reducing downtime and increasing productivity in busy repair environments.
- Designed for sanding paint, primer, metal, and composite surfaces in collision repair
- Durable E-weight paper backing resists tearing and extends disc life
- Fast-cutting abrasive grains deliver efficient material removal
- Stikit™ pressure-sensitive adhesive system allows for easy disc changes
- Ideal for use in automotive body shops and professional repair facilities

