PVB interlayer for laminated glass

Laminated glass with PVB interlayer.

Description

What is laminated glass with PVB interlayer?

PVB (PolyVinyl Butyral) interlayer is a thermoplastic film used in laminated glass for its adhesion, transparency and safety properties. Suitable for applications requiring acoustic insulation and impact resistance, PVB is commonly used in architectural, automotive and interior environments. However, due to its sensitivity to humidity and the constraints of cold storage, PVB presents certain limitations in outdoor and humid environments. Despite these aspects, it remains a popular choice for interior and architectural applications, where its optical clarity and flexibility of use make it a versatile and cost-effective option.

PVB interlayer for laminated glass

Laminated glass with PVB interlayer

Chronoglass offers PVB lamination options that are cut directly in our Montreal plant to the specific dimensions of each project. These prefabricated spacers, available in Clear, Milky and SuperWhite, offer flexibility and speed of execution to meet the needs of professionals. Unlike the custom lamination required with other interlayers, PVB enables rapid installation, particularly for projects such as sealed units (insulating glass units). If your project calls for more complex colors or compositions, we recommend you opt for our Chronolam, our exclusive solution offering complete customization.

Technical properties of PVB and impact resistance

The PVB interlayer ensures solid adhesion to the glass, offering excellent impact resistance while maintaining high optical clarity. Its thermoplastic structure absorbs impacts, reducing the risk of cracking and making it a preferred solution for applications such as safety glass and interior partitions. However, due to its lack of molecular cross-linking, PVB performs less well in outdoor or humid environments, where it may be subject to delamination and degradation under the effect of moisture.

Application and Customization Options

At Chronoglass, PVB is used for a wide variety of projects requiring a simple, effective solution. Thanks to our prefabricated sheets in standard thicknesses (15, 30 and 60), laminated glass compositions can be quickly produced, particularly for architectural glazing and sealed units. Ratings of 15, 30 or 60 indicate the strength of the film and its ability to retain glass fragments in the event of breakage, with optimum performance for safety and design projects.

Although PVB is limited to color options such as Clear, Milky White and SuperWhite, this simplicity makes it a practical solution for interior applications or projects requiring rapid turnaround. For decorative or outdoor requirements, we redirect our customers to Chronolam technology, better suited to these conditions.

Storage constraints and moisture sensitivity

PVB has specific storage constraints, requiring cold room conditions to maintain its adhesion and transparency properties. This need for precaution makes it less suited to environments where humidity and extreme temperatures are common. Poorly managed storage conditions can lead to film degradation, affecting the final quality of laminated glass.

Comparison with Chronolam

Compared with Chronolam, PVB is a more economical and practical solution for projects requiring simple transparency and impact resistance in indoor environments. However, Chronolam offers enhanced durability thanks to its molecular cross-linking, making it ideal for outdoor applications and projects requiring long-term aesthetic and technical stability. For demanding conditions or customized compositions, Chronolam remains the preferred choice to guarantee superior quality and resistance to the elements.

Why choose Chronoglass PVB lamination?

Chronoglass PVB solutions are ideal for projects requiring fast turnaround and simplified installation thanks to our prefabricated spacers. Although limited in terms of customization compared to Chronolam, they remain a reliable and cost-effective option for interior and architectural applications. Contact our team to find out more or to discuss the best options for your professional projects.

Chronoglass options

Types of PVB laminated glass

Single or tempered glass laminated with an opaque, semi-opaque or clear white PVB interlayer, combined with another glass type of your choice. Here are the PVB spacer options available.