Reducing Static and Dust with Anti-Static Acrylic Covers

Background Information

A manufacturer using PMMA (acrylic) safety covers for production machinery faced a recurring issue: static electricity caused dust and debris to cling to the surface, requiring frequent cleaning. The client wanted to keep the clear visibility provided by acrylic but needed a solution to minimize static buildup and reduce maintenance time.

Transparent materials like polycarbonate, acrylic, PVC, and PET were all considered for the replacement. Since these plastics are available in anti-static grades, they offered potential for improved cleanliness while maintaining visibility.

Problem Statement

The challenge arose when the client decided to use anti-static grade acrylic. This material features a thin, durable anti-static coating applied to its surface. However, because the cover design required adhesive bonding, a new problem emerged: the anti-static coating prevented proper adhesion, making it impossible to bond the sheets directly.

Applying an anti-static film to the surface was also not an option, as films do not adhere well to adhesive-bonded parts and would eventually peel with repeated use. The client needed a way to bond the anti-static acrylic without sacrificing either appearance or function.

Solution Implementation

To solve this, Yumoto Electric added a custom machining step to the manufacturing process.

By partially removing the anti-static coating only at the bonding areas, the material could be securely bonded using standard acrylic adhesive techniques, while retaining the anti-static properties across the rest of the surface.

This hybrid approach allowed for strong adhesive joints and clean, static-resistant surfaces, combining the best of both material performance and practicality. The result was a clear, anti-static safety cover that met all of the client’s design, safety, and cleanliness requirements.

Results

The new covers significantly reduced static buildup and dust adhesion, minimizing the need for cleaning and extending the covers’ lifespan. The transparent acrylic maintained excellent visibility while still meeting both functional and cost goals.