What is the difference between PVB and SGP in laminated glass?

In the field of architectural glass, laminated glass has been paid more and more attention due to its high safety.

The full name of PVB is polyvinyl butyral, which has the characteristics of high transparency, sound insulation, cold resistance, impact resistance and ultraviolet radiation resistance.

PVB is currently the most widely used interlayer material for architectural glass and automotive glass.

The full name of SGP is ionic interlayer, which is a high-performance interlayer material developed by DuPont.

PVB VS SGP

The bearing capacity of SGP laminated glass is twice that of PVB interlayer with equal thickness. At the same time, under the condition of equal load and equal thickness, the bending deflection of SGP laminated glass is only 1/4 of that of PVB laminated glass

The tear strength of SGP laminated film is 5 times that of PVB laminated film.

Even if the glass is broken, the SGP film can still bond the cullet to form a temporary structure after the damage. Its bending deformation is small, and it can bear a certain amount of load without falling down as a whole.

Comparison of Application Scenarios

PVB laminated glass is widely used in the following fiel

Construction industry: building curtain walls, sun room, doors and windows, stairs, railings and other places.

Automotive industry: The front windshield of a car usually uses laminated glass to improve the safety and comfort of the driver and passengers.

Transportation facilities: such as glass curtain walls and sound insulation screens in transportation facilities such as railway stations, airports, and bus stations.

Wide application fields of SGP laminated glass:

In places prone to personal safety: Such as street glass windows, architectural glass barriers, balcony doors and windows, airport terminals, glass canopies, glass patios, glass windows installed at an angle, etc.

Need to withstand greater pressure and meet the conditions for transparent observation：Floors, glass corridors, glass planks, submarine windows, deep-water peeping mirrors, ornamental aquariums, etc.

High-performance curtain wall glass: safety glass for high-rise buildings and large public buildings, etc.