BIS/ISI certified processing. 25,000 sqm/month capacity. 4 mm to 19 mm thickness. South India's integrated glass and aluminium supplier.
Also called toughened glass, tuffen glass, or tafan glass, 4 to 5 times stronger than standard annealed glass. Breaks into small, blunt fragments on impact instead of sharp shards. BIS/ISI certified processing at our Bangalore plant. Read our glass selection guide.
Seven glass types processed at our Bangalore plant.
Windows, doors, partitions, and facades. High light transmission with safety-glass strength for residential and commercial projects.
Green, grey, blue, and bronze tints. Reduces solar heat gain and glare for facades, spandrel panels, and windows.
Low-E coating for energy-efficient facades. Meets ECBC 2017 and green building requirements.
Durable on-line coating that can be tempered without edge deletion. Suitable for exposed single-glazed facades and windows.
Ribbed vertical texture for privacy with diffused light. Partitions, shower enclosures, cabinet fronts, entrance doors, and decorative panels.
Back-painted post-tempering for vibrant colour with safety-glass strength. Kitchen backsplashes, wall cladding, wardrobe shutters, and feature panels.
Screen-printed patterns fused during tempering. Custom patterns, dot gradients, and solid colours for spandrel panels, privacy glazing, and decorative facades. Will not fade or peel.
| Dimension | Specification |
|---|---|
| Minimum size | 305 × 305 mm |
| Maximum size | 2,800 × 5,000 mm |
| Standard width for facades | 1,200 to 1,500 mm |
| Maximum for overhead glazing | Subject to thickness and span calculations |
| Thickness | Approx. Weight (kg/sqm) | Common Applications |
|---|---|---|
| 4mm | 10 | Furniture tops, picture frames |
| 5mm | 12.5 | Windows (residential), wardrobe and kitchen cabinets |
| 6mm | 15 | Windows, facade glass |
| 8mm | 20 | Frameless doors, commercial facades, balustrades (low height), shower enclosures, full-height interior partitions |
| 10mm | 25 | Balustrades, railings, shower enclosures, structural glazing |
| 12mm | 30 | Balustrades (full height), frameless doors, patch-fitted doors, shower enclosures, floor panels |
| 15mm | 37.5 | Structural applications, point-fixed glazing, floor glass |
| 19mm | 47.5 | Heavy structural glazing, high wind-load facades, aquariums |
| Glass Type | Typical Premium | Notes |
|---|---|---|
| Tinted | Approx. 30% above clear glass of same thickness | Solar control, aesthetic colour |
| Low-E coated | Project-based pricing | Thermal insulation, ECBC compliance |
| Pyrolytic | Approx. 50% above clear glass of same thickness | Durable on-line coating, no silver, suitable for exposed single-glazed applications |
| Fluted | Approx. 50% above clear (1.5x), similar to hard coat | Ribbed vertical texture, privacy with diffused light |
| Lacquered | 3-3.5x depending on colour, approx. Rs. 300/mm/sqm | Back-painting applied post-tempering, vibrant colours for interiors |
| Ceramic Frit | Approx. 2.5-3x the price of clear glass. Coating alone approx. Rs. 900/sqm regardless of glass thickness; tempering charges extra (total = base glass + coating + tempering) | Patterns fused during tempering, spandrel panels, decorative facades. Also exterior grade and must be tempered, unlike lacquered glass. Lacquered comes mainly in 4, 5, and 6 mm (8 mm on manufacturing order only); ceramic frit can use any thickness since the coating is applied on clear glass. |
All premiums listed above exclude tempering charges. The table above lists approximate price points to make budgetary decisions. Actual costs will depend on the glass selected and prevailing market conditions.
The tempered glass price per square foot and toughened glass rate per sq ft depend on thickness, glass type, edge finishing, glass substrate brand (Saint-Gobain, Asahi, Gujarat Guardian), and order quantity. Contact us for project-specific pricing or check our tempered glass price list for indicative rates.
| Process | Capability | Notes |
|---|---|---|
| CNC cutting | Italian CNC machines | Precision cuts before tempering |
| Edge finishing | Arrised, flat ground, flat polished, bevelled | Multiple edge polishing and grinding machines. Chip-free edges reduce breakage risk. |
| Drilling and notching | Holes, slots, and notches | Pre-tempering only |
| Heat soak testing (HST) | On-site heat soak furnace | Available on request for facades and overhead glazing |
| Ceramic frit printing | Screen-printed patterns | Ceramic frit fused during tempering. For spandrel panels, decorative facades, privacy glazing, and solar shading |
| Back-painting (lacquered) | Post-tempering application | Vibrant colour back-painting applied after tempering for safety-rated lacquered glass |
Tempered glass is specified wherever safety glass is required by building codes, or where impact resistance and thermal strength are critical. As per NBC 2016, tempered or laminated glass is mandatory for doors, sidelights, balustrades, overhead glazing, and any glass within 500 mm of a door.
For projects combining tempered glass with aluminium framing, Karnataka Metal Company can supply both toughened glass and aluminium profiles from a single source. Along with processing, KMC's trading division supplies glass types such as lacquered and mirror glass, produced by float manufacturers like Saint Gobain and Gujarat Guardian.
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
A 50,000 sq ft plant at Nelamangala, Bangalore, with a project-capable tempering furnace rated at 25,000 sqm/month, adhering to some of the tightest flatness tolerances offered by the market. We handle panels from small furniture inserts to full-height facade panels up to 14 sqm. Short lead times for both small and large orders.
One of the few integrated glass and aluminium companies in South India. Tempered glass + aluminium sections + aluminium profiles for the complete window and curtain wall system, all from a single source.
Equipment includes a roller wave gauge, GASP (non-destructive stress testing), Merlin Lazer, surface table. We conduct in-house human impact and ball drop testing as per BIS standards. Some of the flattest glass in the industry with the lowest distortion in bow, roller wave, and edge lift.
A dedicated heat soak testing facility on-site. Reduces NiS spontaneous breakage risk from approximately 1 per 4 tonnes to less than 1 per 400 tonnes (per BS EN 14179). Recommended for all facade and overhead glazing projects. Read about spontaneous glass breakage prevention.
We process single silver and double silver Low-E coatings (the highest available in India) across Saint-Gobain, Asahi, and Gujarat Guardian substrates (certified by all three to process their best Low-E glass), as well as pyrolytic coated glass. These Low-E coatings enable ECBC 2017 compliance and green building certification for energy-efficient facade projects.
All tempered glass panels are processed as per IS 2553 (Part 1): 2018 and carry the BIS/ISI safety mark.
Karnataka Metal Company can help with tempered glass specifications, thickness selection, fire safety compliance, edge finishing options, and project-specific quotations. We are flexible on order sizes, from a single panel for a shower enclosure to thousands of panels for a multi-tower project.
If you are searching for a tempered glass shop near you in Bangalore, visit our city-centre retail outlet for immediate glass trading stock, or contact us for processed toughened glass delivered across South India.
