What is the difference between SGP and PVB laminated glass?

What is Low Iron Glass?

Low iron glass is glass that is specially manufactured to have a lower iron oxide content. Standard &#;clear&#; glass is not completely clear, it has a slight green tint due to the presence of iron oxide.

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The tint is not usually noticeable, however it can become noticeable in thicker panes of glass, when multiple panes are layered together or on an exposed glass edge. Projects that require these kinds of glazing units would benefit from low iron glass to avoid discoloration.

When glass is manufactured there are a variety of materials and impurities that are present. The natural presence of iron oxide in glass comes from elements such as sand or from the container in which the glass was melted.

Low iron glass is also useful when two different glass specifications are being used in the same installation. If a thicker glass pane is next to a thinner one there will be a slight difference in colour.

A solution for this issue is to use low iron glass for the thicker glass elements but not the thinner ones, giving them the same level of clarity for a consistent look.

Just like float glass, low iron glass can be toughened, laminated and designed with different finishes such as sandblasting.

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.

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.

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