3M™ 362L Micro Abrasive Roll

3M™ 362L Micro-abrasive roll: precision and optimal finishing

The 3M™ 362L micro-abrasive roll is designed for precision finishing work on metals, composites, and sensitive materials.

Its micro-structured grain ensures a consistent cut and a uniform surface, without deep scratches or tearing.

Ideal for fine grinding applications, it adapts to standard rotary tool holders and offers an extended service life.

Presentation of the 3M™ 362L micro-abrasive roll

The 3M™ 362L micro-abrasive roll is designed for precision finishing operations on metals, composites, and technical materials. It offers a consistent cut and a reproducible surface finish, even on long production runs.

Its roll format allows it to be cut to the desired length. This is a practical advantage for adapting to parts of various geometries without material waste.

Manufacturing technology and roll structure

The 362L is based on 3M’s Micron Grade™ technology. The abrasive grains are classified with micrometric precision, which ensures a uniform distribution over the entire surface of the roll.

The mineral used is precision aluminum oxide, deposited on a polyester film backing. This backing gives the roll excellent tear resistance and good conformability on curved surfaces.

The bond between the grain and the backing is reinforced by an epoxy resin. Result: less grain shedding during use, a longer service life, and a constant surface finish from the beginning to the end of the abrasive's life.

The grains are available in several grades, generally from 15 µm to 100 µm, to cover stages from fine deburring to mirror polishing.

• Backing: high-resistance polyester film
• Mineral: precision aluminum oxide (Micron Grade™)
• Bond: epoxy resin
• Usage: finishing, superfinishing, precision polishing
• Compatible materials: steels, stainless steel, alloys, composites

Product	Mineral	Backing	Main usage	Finish level
3M™ 362L	Micron Grade™ Aluminum Oxide	Polyester film	Precision finishing, polishing	Very high
3M™ 372L	Micron Grade™ Silicon Carbide	Polyester film	Finishing on hard metals, ceramics	Very high
3M™ 268L	Aluminum oxide	Paper	Deburring, standard sanding	Medium
Norton Adalox	Aluminum oxide	Paper / cloth	General use, wood and metal	Medium

Technical specifications of the 3M™ 362L

The 3M™ 362L micro-abrasive roll is designed for precision finishing operations on metals, composites, and hard materials. It combines a polyester film backing and an micro-replicated aluminum oxide-based abrasive.

The 3M Microreplication technology ensures a constant cut throughout the life of the roll. The grains are arranged in regular pyramids, which prevents clogging and ensures a uniform and reproducible finish.

The polyester film backing gives the 362L excellent tear resistance. It works equally well dry or with lubricant.

Main features:

• Abrasive: micro-replicated aluminum oxide
• Backing: polyester film
• Use: dry or with lubricant
• Available grains: from 15 µm to 100 µm (corresponding approximately to P120 to P1200 grades)
• Applications: finishing, superfinishing, light deburring

Product	Abrasive	Backing	Indicative grain	Main usage
3M™ 362L	Micro-replicated aluminum oxide	Polyester film	15 µm-100 µm	Precision finishing, superfinishing
3M™ 372L	Micro-replicated aluminum oxide	Reinforced polyester film	40 µm-100 µm	Finishing on hard metals, stainless steel
3M™ 268L	Micro-replicated silicon carbide	Polyester film	9 µm-30 µm	Optical superfinishing, ceramics
Norton Blaze R984	Alumina zirconia	Polyester cloth	P40, P120	Aggressive deburring, steel

The 3M™ 362L clearly distinguishes itself from conventional abrasives through its consistent cutting and extended service life. It is particularly well-suited for applications where surface tolerance is critical.

Applications and fields of use for the 3M™ 362L

The 3M™ 362L micro-abrasive roll is designed for precision finishing and superfinishing operations on demanding surfaces. It is intended for professionals who cannot afford approximations regarding final surface quality.

It is mainly used in the aerospace, automotive, medical, and precision engineering sectors. Anywhere where dimensional tolerance and surface finish are critical.

What materials and surfaces can be treated?

The 3M™ 362L is versatile. Its precision alumina abrasive allows it to work on a wide range of materials:

• Ferrous metals: steel, stainless steel, cast iron
• Non-ferrous metals: aluminum, titanium, nickel alloys
• Composite materials and technical plastics
• Painted or coated surfaces requiring gentle sanding

It excels on cylindrical surfaces and bores, where the roll format makes perfect sense. Working on shafts, crankshafts, or turned parts is particularly suitable.

In workshops, it is used for de-burring, fine finishing and surface preparation before treatment or coating. Thanks to its durability and consistent cutting, it is an advantageous replacement for classic abrasive papers in repetitive applications.

Comparison: 3M™ 362L micro-abrasive roll vs. other finishing abrasives

The finishing abrasive market offers several solutions. The 3M™ 362L micro-abrasive roll stands out for its polyester film and its micro-structured aluminum oxide grains, which guarantee a consistent cut and an extended service life.

Compared to a classic cloth abrasive roll (corundum grain on cloth backing), the 362L offers significantly superior surface flatness. The film backing does not deform, which avoids marks and irregularities in fine finishing.

Compared to the 3M™ 268L (alumina film, general use), the 362L specifically targets superfinishing and intermediate polishing operations. Its pyramidal microstructure releases fresh cutting edges as it wears down, whereas a conventional abrasive dulls progressively.

Comparative table of the main micro-abrasive rolls on the market

Product	Manufacturer	Backing	Abrasive	Available grains	Main usage
362L	3M™	Polyester film	Micro-structured aluminum oxide	15 to 100 µm	Superfinishing, intermediate polishing
268L	3M™	Polyester film	Aluminum oxide	30 to 150 µm	General finishing, surface degreasing
Trizact™ 337DC	3M™	Polyester film	A/O pyramidal microstructure	3 to 30 µm	Ultra-fine finishing, optics, aerospace
Corundum cloth roll	Generic	Cotton/polyester cloth	Electro-fused corundum	40 to 320	Roughing, degreasing, versatile use
SiC film roll	Generic / Norton	Polyester film	Silicon carbide	120 to 2000	Finishing non-ferrous metals, ceramics, glass

The 3M™ 362L holds a clear position: it is more precise than a generic cloth roll, more accessible than the Trizact™ 337DC, and better suited for controlled finishing on metals, composites, and hard materials.

At Dagobert Industrie, we offer this roll for workshops that seek result repeatability on production runs or high-value parts.

Usage tips and best practices

The 3M™ 362L micro-abrasive roll offers its best performance when used under the right conditions. Here are the essential points to respect.

Recommended working parameters for an optimal finish

Work at moderate peripheral speed, generally between 10 and 25 m/s depending on the grain and the machined material. Excessive speed generates heat and degrades the cut.

Maintain a light and constant contact pressure. The 362L's precision aluminum oxide grain does the work on its own: forcing does not improve the result, it accelerates wear.

Prioritize a regular and uniform stroke over the entire width of the part. Erratic movements leave marks and compromise the consistency of the finish.

In precision grinding on steel, stainless steel, or aluminum, start with a coarser grain for roughing, then finish with the 362L to obtain a uniform surface finish.

• Clean the roll regularly to prevent clogging
• Check the alignment of the roll on the machine before each use
• Use a suitable lubricant on ferrous metals to limit heat buildup
• Store the roll away from moisture and flat to preserve its geometry

At Dagobert Industrie, we recommend testing the roll on a scrap piece before using it on a production part. This allows you to adjust the machine parameters without risk.

FAQ - 3M™ 362L micro-abrasive roll

1. What is the 3M™ 362L micro-abrasive roll used for?

The 362L is designed for precision finishing operations on metals, ceramics, and composites. It allows for grinding, deburring, and polishing surfaces with very fine control of material removal.

2. What is the difference between the 362L and a standard abrasive?

The 362L uses 3M™ micro-structured technology: oriented abrasive pyramids that wear down progressively and constantly expose new grains. Result: a consistent cut throughout the life of the roll, unlike a conventional abrasive that dulls quickly.

3. What materials can the 362L be used on?

It is particularly suited for stainless steels, titanium, hard alloys, and ceramics. It is also suitable for glass and composite materials requiring a clean finish without the risk of excessive heating.

4. What grains are available for this roll?

The 362L is available in several grain sizes, generally from P80 to P400. Fine grains (P220 and beyond) are reserved for finishing and polishing. Coarser grains are suitable for light grinding or deburring.

5. How do I use the 362L roll correctly to maximize its service life?

Work at moderate speed and constant pressure: excessive pressure breaks the abrasive micro-structures prematurely. Use it preferably dry or with a suitable lubricant depending on the material being machined.

6. Is the 362L compatible with all abrasive roll machines?

Yes, the 362L can be mounted on standard roll sanders, cylindrical grinders, and industrial finishing machines. Simply verify that the mandrel diameter and roll width match your machine's specifications before use.