Flexi-Plast 20 Micron Self-Adhesive Aluminum Oxide Finishing Sheet – 8.5" x 11"

Refine and smooth surfaces with Flexi-Plast aluminum oxide micro-finishing film. This 20 micron self-adhesive abrasive sheet provides a fine finishing grade for controlled surface refinement on metals, plastics, and other suitable materials.

The flexible sheet can follow flat, curved, and contoured surfaces, while the self-adhesive backing allows cut pieces to be mounted to suitable blocks, holders, or custom-shaped supports. The full 216 x 279 mm sheet can be cut into smaller pieces, strips, or shapes to suit the workpiece and application.

Features & Benefits

• Aluminum oxide micro-finishing abrasive

• Fine 20 micron grade

• Approximately equivalent to P800

• Self-adhesive backing

• Flexible construction for flat and contoured surfaces

• Suitable for fine surface refinement

• Can be used on metals and plastics

• Easily cut into smaller pieces and custom shapes

• Useful as part of a progressive finishing sequence

• Full 216 x 279 mm sheet

Specifications

Fine 20 Micron Finish

The 20 micron abrasive provides a fine cutting action for smoothing and refining surfaces after coarser abrasives have removed larger scratches and surface irregularities.

SSP's comparison chart places 20 micron at approximately P800, between the 30 micron/P500 and 15 micron/P1000 grades. This makes it a useful intermediate-to-fine step in a progressive finishing sequence.

Aluminum Oxide Abrasive

Flexi-Plast uses aluminum oxide abrasive for controlled surface finishing.

The flexible abrasive format is useful for detailed bench work where conventional rigid abrasive tools may not conform well to the shape of the component.

It can be used for finishing suitable:

• Metals

• Plastics

• Flat surfaces

• Curved components

• Contoured surfaces

• Edges

• Irregular shapes

• Detailed workpieces

Self-Adhesive Backing

The 268 L series is self-adhesive, allowing pieces of abrasive to be mounted to a suitable support or holder.

This gives you the flexibility to create an abrasive tool that matches the work. A piece can be mounted to a flat block for level surfaces or to an appropriately shaped support for curved and contoured components.

Cut to the Size You Need

Each full sheet measures 216 x 279 mm, approximately 8.5" x 11".

The sheet can be cut into:

• Small finishing pieces

• Narrow strips

• Custom shapes

• Larger sections for broad surfaces

Cutting only the amount required for each job also helps make efficient use of the full sheet.

Progressive Micro-Finishing

The 20 micron grade fits particularly well into a progressive Flexi-Plast finishing system.

For example, a surface can be worked initially with a coarser grade and then progressively refined as needed:

30 micron – approximately P500
20 micron – approximately P800
15 micron – approximately P1000
9 micron – approximately P1800

Each finer step helps reduce the scratch pattern produced by the previous abrasive.

20 Micron vs. 15 Micron

The 20 micron version is coarser than the 15 micron sheet we just completed.

Choose 20 micron/P800 when slightly more cutting action is needed for surface refinement.

Choose 15 micron/P1000 when the surface is ready for a finer finishing step.

Using the two sequentially can provide a smoother transition through the finishing process.

Ideal For

• Fine surface finishing

• Scratch refinement

• Metal finishing

• Plastic finishing

• Jewelry and metalworking

• Precision repair

• Restoration work

• Flat surfaces

• Curved and contoured components

• Progressive abrasive finishing

• Detailed bench work

Frequently Asked Questions

What abrasive grade is this sheet?
This version is 20 micron, approximately equivalent to P800.

Is 20 micron finer than 30 micron?
Yes. A lower micron number indicates a smaller abrasive particle size, so 20 micron produces a finer finish than 30 micron.

Is 20 micron finer or coarser than 15 micron?
It is coarser. The 20 micron grade is approximately P800, while 15 micron is approximately P1000.

Is the sheet self-adhesive?
Yes. The 268 L series has a self-adhesive backing.

What size is the sheet?
It measures 216 x 279 mm, approximately 8.5" x 11".

How thick is the sheet?
The specified thickness for the 268 L series is 0.3 mm.

Can it be used on metal?
Yes. Flexi-Plast is suitable for fine finishing applications on metals.

Can it be used on plastic?
Yes. Flexi-Plast can also be used for fine finishing of suitable plastic surfaces.

Can the sheet be cut into smaller pieces?
Yes. It can be cut into smaller sections, strips, or custom shapes to suit the workpiece.

Should I use 20 micron before 15 micron?
When progressively refining a surface, the coarser 20 micron grade would normally be used before the finer 15 micron grade.

What grade should I use after 20 micron for a finer finish?
The 15 micron grade is a logical next step, followed by an even finer grade such as 9 micron when the application requires additional refinement.