DuPont SGP & PVB Differences and Similarities

pvb vs sgp

Share This Post

Share on facebook
Share on linkedin
Share on twitter
Share on email

PVB and SentryGlas interlayers are the two leading choices for laminated glass solutions.

Here is a summary of the differences and similarities.

 

Differences are as follows:

 

Original Material:

Butacite PVB has a virgin resin interlayer and recycled PVB interlayer. While SentryGlas Interlayer is based on pure ionoplast chemistry, without any plasticizers.

 

Stiffness & Strength:

SGP is 100 times stiffer and five times more tear-resistant than PVB.

stiffness

 

Loads Capability:

The laminated glass of SentryGlas interlayer can bear higher loads than Butacite PVB laminates. Achieving equivalent loads using thinner glass, can lower the structural weight and material cost.

better load

 

 

Post-breakage Strength:

the broken SentryGlas laminated glass stays vertical instead of fall down of the PVB laminated glass.

pvb vs sgp

 

Edge Stability:

Florida 20-year-old testing, SentryGlas specimens without any edge defects or delamination, while PVB normally can keep the same performance within 10 years limited timeframe.

florida test

 

Clarity & Yellowness:

SentryGlas has a yellowness index of 1.5 or lower, while PVB has a yellowness index of between 6 to 12.

pvb vs sgp

 

Material Compatibility:

SGP glass can be combined with fabric, wire, mesh, even metal, while Butacite PVB laminated glass does not have so many compatibilities.

ceramic frit coatings test

 

Thickness Options:

PVB thickness starts from 0.38mm, 0.76mm. 1.14mm, 1.52mm, and multiply layers of 0.38mm. While SGP interlayer starts from 0.76mm, 0.89mm, 1.52mm, 2.28mm. 2.53mm, 3.04mm. 0.80mm for SentryGlas Translucent White interlayer.

 

Similarities are as follows:

 

Safety Glass:

no matter combined with annealed glass or heat-treated glass, both PVB and SGP laminated glass is safety glass.

 

Strong Adhesion:

after broken, PVB and SGP interlayer will stick the glass together and keep the glass integrity.

 

UV Blocking:

PVB interlayer and SGP interlayer can block over 99% of UV lights and protect indoor assets from shading.

 

Decorative Function:

both SentryGlas and PVB laminated glass can act as a part of the building component, including but not limit to the balustrade, handrail, glass floor, etc.

 

Other Features:

PVB and SGP laminated glass have the features of impact resistance, anti-explosion, anti-forced entry functions.

 

Conclusion

With the increasing safety standards around the globe, laminated glass becomes an essential part of curtain wall design, windows and doors application, balustrade and handrail system, flooring and walkways, overhead glazing, and skylights.

We can choose the suitable laminated glass compositions based on wind load design, costs, applications, and structural requirements, etc.

More To Explore

Knowledge Base

The Ultimate Guide to Double Glazing

Double glazing is also known as double glazed unit, insulated glass unit, insulating glass. It is a type of glass pane that can be used

Knowledge Base

The Ultimate Guide to Laminated Glass

What is laminated glass? Laminated glass is a safety glass that is made up of two layers of glass or more layers of glass that

Elite Safety Glass Co., Ltd

Elite Safety Glass © 2021 | Terms of Service & Privacy Policy