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By EPRESS Stamp Factory Team · Published October 3, 2026 · Updated October 3, 2026
EPRESS BLOG

Buyer Guides from the Factory Floor

Practical sourcing guides, size comparisons and material know-how for stamp distributors, wholesalers and private-label brands — written by the factory that makes the stamps.

How to Import Self-Inking Stamps from China
Import Guide

How to Import Self-Inking Stamps from China

From specification to shipping: the process our repeat buyers follow.
ABS vs PP for Self-Inking Stamp Bodies
Materials Guide

ABS vs PP for Self-Inking Stamp Bodies

What the shell plastic actually changes — and what matters more.
How to Replace a Self-Inking Stamp Ink Pad
How-To

How to Replace a Self-Inking Stamp Ink Pad

A two-minute pad swap that doubles the working life of a stamp body.
How Many Impressions Can a Self-Inking Stamp Make?
Buyer Guide

How Many Impressions Can a Self-Inking Stamp Make?

Why there is no honest single number — and what to evaluate instead.
Self-Inking Stamp vs Pre-Inked Stamp: What's the Difference?
Technology Comparison

Self-Inking Stamp vs Pre-Inked Stamp: What’s the Difference?

Two mechanisms, two ink systems — and which your customers will ask for.
Low-Odor Laser Rubber: A Workshop Guide
Workshop Guide

Low-Odor Laser Rubber: A Workshop Guide

What low-odor really means and how to test it.
How to Choose Laser Rubber Hardness for Stamp Dies
Materials Guide

How to Choose Laser Rubber Hardness for Stamp Dies

Shore A in workshop terms, plus a test protocol.
Laser Rubber vs Silicone: Which Material for Stamp Making
Materials Comparison

Laser Rubber vs Silicone: Which Material for Stamp Making

Engraving quality, ink behavior and where each belongs.
How to Choose the Right Round Self-Inking Stamp Size
Size Guide

How to Choose the Right Round Self-Inking Stamp Size

12–50 mm by use case, text capacity and market habit.
Best Laser Rubber Sheets for CO2 Laser Engraving
Materials Guide

Best Laser Rubber Sheets for CO2 Laser Engraving

Engraving quality, odor, consistency and a test protocol.
OEM Self-Inking Stamps: Logo, Color and Packaging Options
OEM Guide

OEM Self-Inking Stamps: Logo, Color and Packaging Options

The three customization layers of an OEM order.
38mm vs 40mm vs 42mm Round Self-Inking Stamp
Size Comparison

38mm vs 40mm vs 42mm Round Self-Inking Stamp

Three best-selling diameters compared.
How to Choose a Self-Inking Stamp Manufacturer in China
Buyer Guide

How to Choose a Self-Inking Stamp Manufacturer in China

Factory verification, moulds, materials, QC, OEM and sampling.

Looking for specs instead? Browse all products, the round stamp range, or read the stamp buying guide.

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