What is the difference between PVB and SGP laminated glass?

02 Jul.,2024

 

PVB vs SGP Glazing Interlayers

What is a glazing interlayer?

Laminated glass is a type of safety glass where two or more panes are bonded together to form a unit.

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Interlayers are used in this process to bond the two panes together when manufacturing this type of glass.

Using a security interlayer has many advantages, more information on these benefits can be found here.

This interlayer is often made from PVB (Poly Vinyl Butyral), but there are many other interlayers available.

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PVB is one of the oldest interlayers used in laminated glass, with its use dating back to the s. It is used widely to laminate glass used in the automotive industry.

SGP (SentryGlas Plus) is another popular security interlayer used in laminated glass, with increased strength and security.

Heat soaked and toughened glass can be incorporated into the laminated glazing to create a secure pane that will be tough to break and even tougher to break through.

The Pros and Cons of PVB, EVA, and SGP Laminated ...

EVA Laminated Glass

EVA laminated glass is a laminated glass with EVA film sandwiched between two glass sheets. EVA stands for ethylene-vinyl acetate copolymer. EVA is also used as an interlayer film for laminated glass. Compared with PVB and SGP, EVA has better fluidity and lower melting temperature (around 110°C). The EVA film layer has good fluidity and can be processed into decorative glass with patterns and designs, such as silk-screen printing or rolling. EVA has good water resistance but poor UV resistance. It tends to turn yellow or black after prolonged exposure to sunlight.

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