Balcony Balustrades and Railings
Laminated glass for balcony balustrades provides fall protection. Toughened laminated (12mm+) configurations are standard for full-height railings where the panel must stay in place after impact.
PVB and SGP interlayers. Stays in frame when broken. BIS/ISI certified, processed and delivered from Bangalore. 10,000 sqm/month capacity.
Karnataka Metal Company offers laminated glass through quality-tested service providers, backed by in-house tempering at its Nelamangala plant in Bangalore for toughened laminated configurations. For a comparison with toughened glass and other safety glass types, read our glass selection guide.
Laminated glass is available with three interlayer options, each suited to different safety, structural, or acoustic requirements.
0.38mm PVB interlayers, used in multiples: 4 layers (1.52mm) for structural applications, 2 or 3 where post-breakage integrity is less critical. Safety retention and 99% UV blocking for balustrades and canopies.
5x stiffer and 100x more tear-resistant than PVB. SGP laminated glass is specified for frameless balustrades, overhead glazing, and post-breakage load-bearing facades.
Specialised PVB interlayer achieving STC ratings of 35 to 40+. Specified for hotels and buildings near airports, highways, railways, and busy urban roads.
Combines toughened glass impact strength with laminated post-breakage retention. 12mm+ toughened laminated is standard for full-height balustrades and floor glass.
Karnataka Metal Company also processes toughened glass and double glazed units (DGU), with aluminium framing sections for curtain walls and windows available from the same Bangalore facility.
| Interlayer Type | Thickness Options | Key Property | Specified For |
|---|---|---|---|
| PVB (Polyvinyl Butyral) | 0.38mm x 2 to 4 layers (0.76mm to 1.52mm) | Safety retention, 99% UV blocking | Standard architectural lamination |
| SGP (SentryGlas Plus) | 0.89mm, 1.52mm, 2.28mm | 5x stiffer than PVB, post-breakage strength | Structural glass, frameless balustrades, overhead glazing |
| Acoustic PVB | 1.14mm, 1.52mm | STC 35 to 40+, enhanced sound dampening | Noise-sensitive buildings, hotels, airports, highways |
| Dimension | Specification |
|---|---|
| Minimum size | 305 x 305 mm |
| Maximum size | 2,400 x 5,000 mm |
| Standard width for facades | 1,200 to 1,500 mm |
| Maximum for overhead glazing | Subject to thickness and span calculations |
| Process | Capability | Notes |
|---|---|---|
| CNC cutting | Italian CNC machines | Precision cuts and shaping before lamination |
| Edge finishing | Arrised, flat ground, flat polished, bevelled | Multiple edge polishing and grinding machines |
| Drilling | Holes and slots | Must be completed before lamination |
| Heat soak testing (HST) | On-site heat soak furnace | For toughened laminated configurations to reduce NiS breakage risk |
| Toughened laminated | In-house tempering + lamination through quality-tested service providers, 10,000 sqm/month | Our tempering produces some of the flattest glass in the industry, reducing the risk of bubbles and delamination |
| Decorative lamination | EVA interlayers, fabric lamination | For decorative and privacy applications |
Laminated glass is built to order. The right build of glass thickness, glass type, and interlayer depends on panel size, span, and wind load. Balustrades, facades, and overhead glazing always use toughened panes. Share your panel sizes and we will confirm the exact configuration.
Laminated glass pricing depends on interlayer type (PVB, SGP, acoustic), glass substrate (clear, tinted, Low-E), and order quantity, and moves with market conditions. Tinted and Low-E substrates carry a premium over clear glass. For project-specific pricing, contact us with your panel schedule and specifications.
Specified wherever codes require glass that stays in the frame after breakage, or where safety, UV protection, or sound insulation is a priority.
RMZ Eco World 22
Bagamane Solarium
Sattva Knowledge Point
Sattva Signature
Puravankara Zentech
Prestige Sanctuary Nandi Hills
RMZ Eco World 22
Bagamane Solarium
Sattva Knowledge Point
Sattva Signature
Puravankara Zentech
Prestige Sanctuary Nandi Hills
PVB, SGP (SentryGlas Plus), and Acoustic PVB interlayers through quality-tested service providers. The right interlayer for each project's safety, structural, or acoustic requirements.
Processed per IS 2553 (Part 1): 2018. BIS test certificates and documentation provided for every batch.
Tempering is done in-house at our 50,000 sq ft Nelamangala plant, while lamination is handled through quality-tested service providers. Our tempering produces some of the flattest glass in the industry, reducing the risk of bubbles and delamination in the finished product.
Roller wave gauge, GASP, Merlin Lazer, surface table. Testing per BIS standards for interlayer adhesion, optical clarity, and structural integrity.
Laminated glass + aluminium sections for windows, curtain walls, and railings from a single supplier. One purchase order, simplified coordination.
No rigid minimum order. From a single panel to multi-tower project requirements, with consistent quality and lead times.
For laminated safety glass quotations, interlayer selection, or BIS documentation, contact our glass team. Visit our Bangalore retail outlet at A.M Road or request delivery across South India.
