Frequently Asked Questions About 12mm Tempered Glass

🔹 Can 12mm tempered glass be cut or drilled after tempering?

No. Once glass is tempered, any cutting, drilling, or edge modifications will cause it to shatter. All customizations (holes, notches, shapes) must be done before the tempering process. Our CNC machines ensure precision cuts with ±0.5mm tolerance.

🔹 How does 12mm tempered glass compare to laminated glass for safety?

Both are safety glasses, but they serve different purposes:

• 12mm Tempered Glass: 4-5x stronger than annealed glass. Shatters into small granules (less hazardous). Ideal for high-impact areas like doors, partitions, and facades.
• Laminated Glass: Two glass layers with a PVB/EVA interlayer. Holds together when broken (no fall-out). Better for security, soundproofing, and hurricane resistance.

Pro Tip: For maximum safety (e.g., overhead glazing), use tempered + laminated glass.

🔹 What’s the maximum size for 12mm tempered glass?

Our 45m tempering furnace allows us to produce 12mm tempered glass in sizes up to:

• Flat Glass: 3,660mm x 2,440mm (144" x 96")
• Jumbo Sizes: Up to 6,000mm x 3,300mm (236" x 130") via special order.

Note: Larger sizes may require heat-soaked treatment to prevent spontaneous breakage (nickel sulfide inclusion risk).

🔹 How much does 12mm tempered glass weigh?

12mm tempered glass weighs approximately 30 kg/sqm (6.13 lb/sqft). For example:

• 1m x 1m panel: 30 kg (66 lbs)
• 2m x 1m panel: 60 kg (132 lbs)

Structural Consideration: Always verify that your framework can support the weight, especially for overhead or vertical installations.

🔹 What’s the lead time for 12mm tempered glass orders?

Our standard lead times are:

• Stock Sizes (Clear, 12mm): 7-10 days (ready to ship from warehouse)
• Custom Sizes/Shapes: 15-20 days (production + quality checks)
• Bulk Orders (10,000+ sqm): 25-30 days (scheduling flexibility)
• Express Service: 5-7 days (premium fee applies)

Logistics: We partner with DHL, Maersk, and COSCO for global shipping. Sea freight takes 20-45 days depending on destination.

🔹 How do I clean and maintain 12mm tempered glass?

Follow these steps for long-lasting clarity:

1. Rinse: Use lukewarm water to remove dust/grit (prevents scratches).
2. Clean: Apply a 50/50 water-vinegar solution or mild glass cleaner (avoid ammonia or abrasives).
3. Dry: Use a microfiber cloth or squeegee to prevent water spots.
4. Avoid: Paper towels (can scratch), bleach, or scouring pads.

For Hard Water Stains: Use a lime scale remover (test on a small area first).

🔹 Do you offer samples for 12mm tempered glass?

Yes! We provide free samples (100mm x 100mm or 200mm x 200mm) for:

• Clear 12mm Tempered Glass
• Low-Iron 12mm Tempered Glass
• Tinted (Bronze, Gray, Blue, Green) 12mm Tempered Glass

Sample Request Process:

1. Fill out our online form with your specifications.
2. We ship via DHL/FedEx (3-5 days delivery).
3. Test the sample for fit, finish, and performance.
4. Place your bulk order with confidence!

Note: Custom samples (e.g., with holes or prints) may incur a $50-$200 fee, refundable upon bulk order.

🔹 What payment methods do you accept?

We offer flexible payment options for your convenience:

• T/T (Telegraphic Transfer): 30% deposit, 70% before shipment (most popular).
• L/C (Letter of Credit): At sight or 30/60/90 days (for established clients).
• PayPal: For sample orders or small quantities (≤$5,000).
• Western Union: For urgent payments.
• Alibaba Trade Assurance: Secure payment with order protection.

Minimum Order Value: $1,000 (custom terms available for large clients).