How to Choose Laser Rubber for CO2 Stamp Engraving

Quick Answer

For CO2 laser stamp engraving, choose a rubber sheet that is made for stamp making, matches your machine bed size, and comes from a supplier who can provide samples for settings tests. Hongli manufactures laser rubber sheets as A4 sheets (210 x 297mm) and 330 x 110mm strips in orange-red and gray, with Pantone custom colors and standard / low odor options for enclosed workshops.

What Is Laser Rubber?

Laser rubber is a rubber sheet compound formulated for laser engraving. A CO2 laser vaporizes the surface to create a relief image, and the engraved sheet becomes the die plate of a rubber stamp or self-inking stamp. It is the standard raw material for modern stamp making.

What Size Should You Choose?

Match the sheet to your machine and your typical die size. A4 sheets (210 x 297mm) cover general stamp production and let you nest many dies on one sheet. The 330 x 110mm strip format suits long, narrow dies and efficient material use for text stamps.

Both formats are listed on the Laser Rubber Sheet page.

Thickness and Hardness

The Hongli standard laser rubber sheet is 2.4 mm thick with an approximate hardness of 56 Shore A — a combination that suits common self-inking and traditional stamp mounts. If your mount or machine has specific requirements, contact the team with your mount type and machine model and we will confirm fit before you order. Start engraving tests on a small sample piece before running full sheets.

Low Odor vs Standard Rubber

Laser engraving rubber produces fumes. Standard sheets suit workshops with good extraction, while the low odor version is made for enclosed workshops, shops and classrooms where ventilation is limited. If your engraving area is small or shared, the low odor option is the practical choice.

How Laser Power Affects Engraving

Higher laser power removes material faster, but the right balance of power and speed decides edge sharpness and relief depth. Every machine, lens and air-assist setup behaves differently, which is why there is no universal settings table that works for all workshops.

Why Test Settings Matter

Always start with a small test engraving on a sample piece, then adjust. The reliable workflow is: engrave a small sample, wash and stamp it, check impression sharpness, note the settings, and only then run full sheets. Keep a written record of the best settings for each material batch.

100W CO2 Laser Considerations

A 100W CO2 laser has more than enough power for stamp rubber and typically runs at moderate power with comfortable speed. The same test-first rule applies: begin with a small sample area and tune from there instead of copying settings from other machines.

Stamp Making Applications

Engraved laser rubber dies are mounted on self-inking stamps, traditional hand stamps, date stamps and pocket stamps. Sheet color (standard orange-red or gray; custom Pantone colors are available for OEM orders) is mainly a workshop preference for visibility and handling; the engraving process is the same.

Common Mistakes

• Skipping the sample test and engraving full sheets with untested settings.
• Buying sheets without confirming size, thickness or hardness against the mount.
• Ignoring ventilation — choose the low odor version for enclosed spaces.
• Not recording the final working settings for each material batch.

Written by: Hongli Content Team  ·  Technical review: Hongli Production Team  ·  Last updated: October 30, 2026

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