Laminated Glass Manufacturer: Custom PVB/SGP Safety Glass

Laminated glass bonds two or more panes with a plastic interlayer so that, if broken, the fragments stay held to the interlayer rather than falling. As a laminated glass manufacturer we make it to your sizes and build-up for safety, acoustic, overhead and balustrade use; this guide covers the options, what drives the price, and how to order.

Build-ups we make

PVB laminated glass — the standard interlayer for safety and general glazing, available in clear and acoustic grades.
SGP (ionoplast) laminated glass — a stiffer, stronger interlayer for structural, balustrade and overhead applications and for better edge stability.
Interlayer count and thickness — one or more interlayers, and panes tempered or heat-strengthened before lamination where strength requires it.
Combined build-ups — laminated glass built into an insulated unit, or curved and then laminated, so one order can meet safety, thermal and shape requirements together.

What drives the price

A laminated glass quote moves with the glass make-up (number and thickness of panes), the interlayer type (PVB vs SGP) and count, the panel size and quantity against the minimum order, any tempering or shaping, and the shipping terms. Because these vary per project, the fastest route to a real figure is your schedule rather than an average rate.

What to send for a quote

Build-up — pane thicknesses and interlayer (PVB or SGP), or the application so we can advise.
Sizes, shapes and quantity — a schedule or drawing, with edgework and any holes.
Destination and shipping terms (EXW / FOB) and target date.

How to order

See the laminated glass product page for the specification, then send us your sizes and build-up. We will confirm the make-up, minimum order quantity, lead time and EXW / FOB pricing, and return an itemised quotation.

Laminated glass specifications

Ply count. Constructions from 2-ply to 5-ply. A 2-ply build (two panes, one interlayer) covers most façade, partition and balustrade applications. 3-ply and higher constructions are used for overhead, security and blast applications.

PVB interlayer. Polyvinyl butyral is the standard choice — available in clear and acoustic grades (the acoustic grade has a softer inner layer for better sound reduction). PVB holds fragments in place after breakage and provides UV attenuation. Standard thickness is 0.38 mm per layer; 1.52 mm (four layers) is common for façade safety glass.

SGP interlayer. Sentryglas ionoplast is around 100 times stiffer than PVB under long-duration load. The laminated panel retains meaningful residual load capacity after breakage, and SGP’s better edge stability makes it the choice for structural balustrades, overhead glazing and exposed-edge applications. A common SGP thickness is 2.28 mm.

Glass plies. Plies can be clear, low-iron, body-tinted or coated. Plies are typically tempered before lamination where strength and safe-fracture behaviour are required; heat-strengthened glass is used where controlled fracture without full fragmentation is preferred.

Post-breakage behaviour. When a laminated pane breaks, fragments stay bonded to the interlayer — the pane is damaged but remains in the opening. With SGP, the interlayer’s residual stiffness allows the damaged panel to continue carrying some load temporarily.

Standards. Manufactured to GB 15763.3, EN ISO 12543 and ASTM C1172.

Sizes. Large-format, made-to-order, cut to your drawings; we confirm the achievable range for the make-up you specify.

Project references

A research-institute façade used SGP lamination on compound-curved ultra-clear tempered glass sealed into insulating units. The 2.28 mm SGP interlayer was chosen for structural post-breakage performance over occupied areas, and for the edge stability required when curved laminated plies must assemble precisely into a continuous façade. Full case: a research-institute façade.

A motorsport-venue façade used PVB lamination as the outer component of a flat tempered laminated insulating unit: 6 mm European-grey tempered + 1.52 mm PVB + 6 mm clear tempered (outer laminated pane) + 16 mm air cavity + 6 mm clear tempered inner pane. The grey tint controlled solar heat and glare; the PVB laminate provided post-breakage fragment retention over spectator areas; and the insulating cavity added thermal performance. Full case: a motorsport-venue façade.

A hotel façade used green body-tinted PVB laminated glass to give the building its appearance while meeting safety requirements: 6 mm green tempered + 1.52 mm PVB + 6 mm green tempered. The body tint is in the glass itself — permanent and even across the batch — with PVB bonding the two plies into safety glass. Full case: a hotel façade.

Frequently asked questions

What is the difference between PVB and SGP interlayers? PVB is the standard interlayer for most safety-glass applications. SGP is around 100 times stiffer under long-duration load, giving structural post-breakage capacity and better edge stability. SGP is preferred for structural balustrades, overhead glazing and exposed-edge panels. See the PVB vs SGP guide for a full comparison.

How many plies can laminated glass have? From 2-ply to 5-ply. Most façade safety glass is 2-ply with a single interlayer; 3-ply and above are specified for overhead, security or blast applications.

Is laminated glass the same as toughened glass for safety? No — different safety mechanisms. Tempered glass is 3–5 times stronger than annealed and breaks into small blunt fragments, but those fragments are loose. Laminated glass keeps fragments bonded to the interlayer so they stay in the opening. For highest performance, plies are tempered before lamination, combining both mechanisms. See the laminated vs toughened guide.

Can laminated glass be curved or built into an insulated unit? Yes. Curved tempered plies can be laminated with PVB or SGP to produce curved laminated glass. Laminated glass can also be incorporated into an IGU as one or both panes — as demonstrated in the motorsport-venue and research-institute projects above.

Send us your sizes and build-up and we will confirm the make-up, minimum order quantity, lead time and EXW / FOB pricing.

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