What Is the Recovery Rate of Windshield Recycling?

As the number of scrapped vehicles continues to rise, the recycling of windshields has become an increasingly prominent area of ​​focus within the industry. Many people naturally wonder: how much material can actually be recovered from a single old windshield? And does it retain any utility after being recycled?

The answer is: absolutely. Although windshields are not as straight forward to process as ordinary glass, by utilizing specialized equipment and separation technologies, the majority of their constituent materials can indeed be repurposed.

What Is a Windshield Made Of?

Automotive windshields typically consist of laminated glass, formed by bonding two layers of glass together with an interlayer of PVB film.

Specifically:

• Glass accounts for over 90% of the total weight;
• The PVB film constitutes a smaller proportion;
• The assembly may also contain small amounts of sealant and impurities.

Windshield Recycling Rate: How High Is It?

In a complete recycling production line, after undergoing crushing, screening, and separation, the recovery rate for glass typically reaches 90% to 95%.

The recycling of PVB film presents a relatively greater challenge; however, recovery rates of 70% to 90% can still be achieved.

Overall, a well-functioning windshield recycling line is often capable of achieving an overall resource utilization rate exceeding 90%.

What Factors Affect the Recycling Rate?

Raw Material Condition

If the windshield is heavily contaminated with adhesive strips, plastic trim, or other impurities, it will compromise the effectiveness of the subsequent separation process.

Equipment Performance

High-efficiency shredders, crushers, and sorting equipment facilitate the more thorough liberation of the glass, thereby increasing the material recovery rate.

Separation Technology

The ability to effectively separate the glass from the PVB film directly determines the purity and value of the final product.

What Are the Recycled Materials Used For?

The recovered glass granules can be utilized for:

• Production of building materials
• Manufacturing of glass fibers
• Processing of foam glass

Meanwhile, the separated PVB film can be used for:

• Recycled plastic products
• Processing of industrial materials
• Production of modified plastics

Discarded windshields are not merely waste destined for the landfill; with proper processing, they can be transformed into valuable recycled materials.

The Gomine automated recycling machine for end-of-life vehicle windshields efficiently separates the glass from the PVB film, making the windshield recycling process simpler and more efficient.