3M Adhesion Promoter K520UV for Plastics & UV-Curable Systems | High-Performance Surface Primer

3M Adhesion Promoter K520UV is a liquid primer designed to enhance the adhesion of 3M acrylic foam and acrylic plus tapes on low surface energy (LSE) plastics such as polypropylene (PP), thermoplastic olefins (TPO), and EPDM rubber. It is widely used in automotive applications, especially for exterior trim bonding, where reliable adhesion and process consistency are critical. A key feature of K520UV is its UV-detectable fluorescent dye, which allows operators to visually confirm complete and uniform primer coverage, ensuring consistent bonding quality.

Features:

- Improves bonding to PP, TPO, and EPDM.
- Fluorescent dye enables inspection of coating coverage.
- Designed specifically for automotive tape systems.
- Minimizes downtime and improves efficiency.
- No mixing required, easy to apply.

Applications:

Automotive exterior trim (moldings, claddings), Emblems and badges, Plastic bumpers and body panels, Injection-molded components, Acrylic foam / VHB tape bonding.

Additional Documents:

3M Adhesion Promoter K520UV (TDS)

Adhesive Tapes Selection Guide

Category: 3M Adhesion Promoters

Description

Technical data

Legal Disclaimer

The values given are typical values, and do not constitute a specification. We recommend testing the suitability of the self-adhesive tape for the designated application or use. Please contact us or e-mail info@ysdiecut.com to determine product availability.

OEM: Delivers tailor-made adhesive tape products and die-cut components under your brand specifications—designed to integrate seamlessly into your end products.