EDM texture and chemical etching are two entirely different mold surface treatment processes. The textures they form differ significantly in principle, appearance, feel, performance, and application.
EDM Texture (Electrical Discharge Machining Texture): Formed by using electrical discharges to corrode the mold steel surface, creating a random, non-directional rough surface similar to sand or stardust.
Chemical Etching (Chemical Texture): Formed by using chemical solutions to corrode the mold steel surface, creating regular, designable patterns such as leather, wood grain, geometric shapes, etc.
How to Choose?
When selecting, primary considerations are the product positioning, functional requirements, and cost budget.
Choose EDM texture when:
Cost-effectiveness is pursued, and the budget is limited.
Good scratch resistance and anti-fingerprint capabilities are required.
A matte finish is desired without the need for specific patterns.
The product focuses more on functionality rather than appearance decoration.
Choose chemical etching when:
Appearance and brand image are the primary factors.
There is a need to replicate specific natural textures (leather, wood, fabric) or custom patterns (logos, geometric shapes).
A high-end, luxurious product feel is pursued.
Absolute consistency of the texture across different production batches is required.
Based on the client’s product requirements, ATC-Mould provides professional advice on injection mold texturing.