3M 237AA Trizact Abrasive Belts – Structured Abrasive Belts for Consistent Fine Finishing

The 3M 237AA Trizact abrasive belt is designed for controlled, repeatable finishing where surface consistency matters more than aggressive stock removal. Trizact belts use micro-replicated structured abrasive technology, meaning the abrasive is formed into precise shapes that wear in a predictable way.

This makes 237AA ideal for applications where you want to refine previous sanding steps, reduce scratch depth variation, and move toward final finish levels with greater control.

Grades are as follows: A160 (P120), A100 (P200), A65 (P280), A45 (P400), A30 (P800), A16 (P1400), A6 (P2000).

Use our Belt Calculator to order 237AA in custom belt sizes to match your machine.

Why Choose Trizact 237AA?

• Structured abrasive for predictable wear and finish
• Excellent consistency across the belt life
• Ideal for refining scratches before final finishing
• Reduces process variation between operators

Best Applications

• Scratch refinement after coated abrasive steps
• Metal finishing prior to polishing
• Applications requiring consistent surface quality
• Multi-step finishing processes

Trizact vs Conventional Abrasives

Traditional coated abrasives break down more randomly. Trizact belts wear in a controlled pattern, often leading to more predictable finishing outcomes.

Order the Exact Belt Size You Need

With our online abrasive belt calculator, you can:

• Enter your belt width and length
• Choose grit size
• Get instant pricing
• Avoid ordering incorrect sizes

This ensures the belt you receive is made specifically for your machine, reducing downtime and waste.

Common Questions

Is 237AA for heavy grinding?
No — it’s designed for finishing and scratch refinement.

What makes Trizact different?
Structured abrasive shapes provide more consistent finishing behaviour.

Custom sizes?
Yes — configure using the belt calculator.