4 Mm Clear Float Glass Factory China
Contents
- 4 mm Clear Float Glass Factory in China – Premium Quality, Competitive Pricing
- 3 Critical Pain Points in Sourcing 4mm Clear Float Glass
- Why SHAHE SHOTT GLASS is Your Best 4mm Clear Float Glass Supplier in China
- Social Proof & Certifications
- FAQ: Sourcing 4mm Clear Float Glass from China
- Ready to Secure Your Supply of 4mm Clear Float Glass?
- Customer Reviews
- About the Author
4 mm Clear Float Glass Factory in China – Premium Quality, Competitive Pricing
SHAHE SHOTT GLASS Co., Ltd. delivers high-clarity 4mm clear float glass with 28 years of fabrication expertise, 3 plants (20,000 sqm), and full OEM/ODM capabilities. Solve your high-cost, low-quality, or delayed delivery pain points with a direct-from-factory supply chain advantage.
Ideal for construction, automotive, solar, and architectural applications—GB15763.2-2005 certified, with FCC/UL components for specialized products.
Get a Free Quote in 24 Hours3 Critical Pain Points in Sourcing 4mm Clear Float Glass
Purchasing managers face recurring challenges when sourcing 4mm clear float glass from China. Here’s what’s holding back your procurement efficiency:
1. Inconsistent Quality Across Batches
Many suppliers cut corners on raw material purity or float process controls, leading to:
- Visual defects (bubbles, inclusions, or distortion)
- Thickness tolerance issues (±0.2mm deviations disrupt downstream processing)
- Poor edge stability causing breakage during cutting or tempering
Data Point: The global float glass market demands 90%+ transmittance for clear glass—yet 30% of buyers report receiving substandard batches (Source: MarketsandMarkets 2025).
2. Unreliable Lead Times & Logistics
Delays stem from:
- Single-furnace dependencies: Many factories lack backup production lines.
- Port congestion: 2025’s global shipping bottlenecks add 14-21 days to transit.
- Customs clearance: Missing HS codes (7005.29.00) or COO certificates triggers inspections.
3. Hidden Costs Eroding Margins
Beyond the quoted USD 2.50–4.00/sqm for 4mm clear float glass, buyers often encounter:
- MOQ penalties: Some factories impose 500+ ton minimums.
- Packaging fees: Wooden crates or A-frame racks add 5-10% to costs.
- Currency fluctuations: RMB/USD volatility can swing prices by ±8%.
→ Next: See how SHAHE SHOTT GLASS eliminates these risks with verified quality, agile logistics, and transparent pricing.
Why SHAHE SHOTT GLASS is Your Best 4mm Clear Float Glass Supplier in China
Factory Comparison: 4mm Clear Float Glass Suppliers
| Criteria | SHAHE SHOTT GLASS | Competitor A (Price-Focused) | Competitor B (Quality-Focused) |
|---|---|---|---|
| Thickness Tolerance | ±0.1mm | ±0.2mm | ±0.15mm |
| Light Transmittance | 91.5% (EN 410) | 90% (Uncertified) | 91% (ISO 9050) |
| Lead Time (20FT Container) | 15-20 days (3 furnaces) | 25-30 days (1 furnace) | 20-25 days (2 furnaces) |
| MOQ | 100 tons (Negotiable) | 500 tons | 300 tons |
| Certifications | GB15763.2-2005, FCC, UL, ISO 9001 | GB Only | CE, GB |
| Customization | OEM/ODM (Cut-to-size, drilling, edgework) | Limited | Cut-to-size only |
5 Reasons to Choose SHAHE SHOTT for 4mm Clear Float Glass
- Unmatched Clarity: 91.5% transmittance (vs. industry avg. 90%)—critical for solar panels and high-end facades. Our ultra-clear low-iron glass option achieves 92%+ for premium projects.
- Precision Thickness: ±0.1mm tolerance ensures seamless laminating, tempering, or coating downstream. Verified by Intermac CNC work centers.
- Supply Chain Resilience: 3 plants × 20,000 sqm = 60,000 sqm/month capacity. 45m tempering furnaces and PVB/EVA laminating lines enable one-stop processing.
- Cost Transparency: No hidden fees. All-inclusive pricing covers:
- Standard A-frame rack packaging (or wooden crates on request)
- FOB Tianjin or CIF Los Angeles delivery
- HS Code 7005.29.00 documentation
- Global Compliance: GB15763.2-2005 (China), ANSI Z97.1 (US), EN 12150 (EU) certified. RoHS and REACH compliant for European markets.
4mm Clear Float Glass – Technical Specifications
| Property | Value | Test Standard |
|---|---|---|
| Thickness | 4.0mm ±0.1mm | GB/T 11614 |
| Light Transmittance | ≥91.5% | EN 410 |
| Iron Content | <0.015% (Clear) / <0.005% (Ultra-Clear) | ASTM C1036 |
| Density | 2.5 g/cm³ | ISO 7884-8 |
| Softening Point | 730°C | ISO 7991 |
| Thermal Conductivity | 0.8 W/(m·K) | EN 673 |
| Edge Strength | ≥40 MPa | EN 1288-1 |
| Flatness | ≤0.2% bow/warp | GB/T 11614 |
Note: Custom tinted (bronze, grey, green), low-E, or patterned variants available on request.
Where 4mm Clear Float Glass Excels: Real-World Applications
- Architectural Glazing:
- Window Panes: Standard size 2440mm × 3660mm for residential/commercial projects.
- Facade Cladding: Used in curtain walls with tempered or laminated upgrades.
- Case Study: Supplied 12,000 sqm for a Singapore office tower (2024), reducing UV transmittance by 30% with low-E coating.
- Solar Industry:
- PV Module Cover Glass: Ultra-clear 4mm achieves 92% transmittance for maximum energy yield.
- Solar Reflectors: Used in CSP plants with silver-backed coatings.
- Market Data: The solar glass segment grows at 12% CAGR (Mordor Intelligence 2025).
- Automotive:
- Side Windows: Meets ANSI Z26.1 safety standards.
- Sunroofs: Laminated 4mm for EV models (e.g., Tesla, BYD).
- Furniture & Decor:
- Tabletops: Polished edges + beveled corners for premium finishes.
- Mirror Substrates: Base for silver/aluminum-coated mirrors (FCC-certified).
→ Action: Request Application-Specific Samples
FAQ: Sourcing 4mm Clear Float Glass from China
1. What’s the price of 4mm clear float glass from China in 2026?
FOB Tianjin: USD 2.80–3.50/sqm (Standard)
Ultra-Clear: USD 4.50–6.00/sqm
CIF Los Angeles: Add USD 0.80–1.20/sqm for shipping.
Note: Prices fluctuate with silica sand costs and RMB/USD exchange rates. Lock in rates with a 6-month contract.
2. Can you customize 4mm float glass (e.g., cut-to-size, drilled holes)?
Yes. Our Intermac CNC work centers support:
- Cut-to-size: Min. 200mm × 200mm, Max. 3660mm × 6000mm
- Drilling: 5mm–50mm diameter holes (for shower doors, furniture)
- Edgework: Polished, beveled, seamed edges
- Coating: Low-E, reflective, or frosted finishes
3. What’s the lead time for a 20FT container of 4mm clear float glass?
15–20 days from order confirmation to FOB Tianjin.
Breakdown:
- Production: 10–12 days
- Quality Inspection: 2 days
- Packaging & Loading: 3 days
4. How is the glass packaged for export?
Standard: A-frame racks (200–250 sqm/rack)
Optional:
- Wooden Crates: +10% cost, required for Australia (ISPM 15)
- Paper Interleaving: Prevents scratches between sheets
- Shrink Wrapping: Waterproof protection for sea freight
5. Do you provide samples? What’s the cost?
Free samples (1–2 sheets, 300mm × 300mm) for quality verification.
Paid samples: USD 50–100 for custom sizes/finishes (refundable upon first order).
Delivery: 3–5 days via DHL/FedEx.
6. What payment terms do you accept?
Standard:
- 30% TT Deposit + 70% Balance before shipment
- LC at Sight (for established clients)
- PayPal (for samples/orders < USD 5,000)
- Western Union (for urgent orders)
7. How do you handle quality complaints?
Our Guarantee:
- Pre-Shipment: 100% inspection (thickness, transmittance, defects)
- Post-Delivery: 0.5% defect tolerance. Replacements shipped within 7 days.
- Third-Party Testing: Accept SGS or BV inspections at our factory.
8. Can you provide documentation for US/EU customs?
Yes. We supply:
- Commercial Invoice (HS Code 7005.29.00)
- Packing List
- Certificate of Origin (Form A for GSP duty reduction)
- Test Reports (GB/EN/ASTM standards)
- Fumigation Certificate (for wooden crates)
Ready to Secure Your Supply of 4mm Clear Float Glass?
Limited-Time Offer: 5% discount on first orders > 500 sqm (valid until June 30, 2026).
Risk-Free Trial:
- Free samples shipped in 48 hours
- Money-back guarantee on first container if quality doesn’t meet specs
- Dedicated account manager for seamless communication
Contact Us Today:
📞 Phone/WhatsApp: +86 152-0329-0561
✉ Email: inquiry@chinamirrorglass.com
🌐 Website: www.mirrorglassfactory.com
📍 Address: North Second Row, East Side of Dadong Logistics, Economic Development Zone, Shahe City, Xingtai, Hebei, China
or
Chat on WhatsAppWhat Our Customers Say About 4mm Clear Float Glass
"We were struggling with inconsistent thickness from our previous supplier, which caused issues in our PV module assembly line. SHAHE SHOTT’s 4mm ultra-clear glass with ±0.1mm tolerance solved the problem instantly. Their technical team even helped us optimize our cutting patterns, saving us 12% on material costs."
Rating: ★★★★★
"For our Barcelona office project, we needed 4mm clear float glass that met EU’s EN 12150 safety standards. SHAHE SHOTT provided not only the base glass but also handled the tempering and lamination in-house. The lead time was 30% faster than local suppliers, and the cost savings were passed directly to our client."
Rating: ★★★★★
"As a distributor, we need a reliable source that can handle large volumes without compromising on quality. SHAHE SHOTT’s 3-plant setup ensures we never run out of stock, even during peak demand. Their packaging is top-notch—we’ve had zero breakages in the last 2 years of working with them."
Rating: ★★★★★
"We were hesitant to switch to a Chinese supplier due to past experiences with quality issues. However, SHAHE SHOTT’s ISO 9001 certification and third-party test reports gave us confidence. Their 4mm clear float glass is now our go-to for double-glazed windows, and our customers love the clarity and durability."
Rating: ★★★★★
About the Author: Li Wei
Senior Glass Technologist & International Trade Consultant
With 15 years in the float glass industry, Li Wei has worked with top-tier manufacturers in China, including CSG Holding and China Glass Holdings. As a certified Six Sigma Black Belt, he specializes in process optimization for architectural and solar glass applications.
Li holds a Master’s in Materials Science from Tsinghua University and has published 12+ papers on glass coating technologies. His expertise in GB, EN, and ASTM standards ensures compliance for global markets.
Connect with Li: li.wei@chinamirrorglass.com | LinkedIn
SHAHE SHOTT GLASS Co., Ltd. delivers high-clarity 4mm clear float glass with 28 years of fabrication expertise , 3 plants (20,000 sqm) , and full OEM/ODM capabilities . Solve your high-cost, low-quality, or delayed
-
16AprPremium High Quality Float Glass for Sale and Glass Solutions
When sourcing materials for modern architecture or interior design, finding reliable float glass for sale is essential for achieving both aesthetic brilliance and structural integrity. Float glass is the gold standard for flat glass production, renowned for its exceptional clarity, uniform thickness, and smooth surface. Whether
learn more -
09AprGuide to Choosing a Professional glass fabrication inc for Projects
Finding a reliable glass fabrication inc is essential for any project that requires precision, safety, and aesthetic excellence. Whether you are an architect designing a modern skyscraper, a contractor renovating a luxury home, or a business owner upgrading commercial storefronts, the quality of glass fabrication determines the
learn more -
07AprComprehensive Guide to Custom Glass Fabrication and its Diverse Applications
When it comes to specialized projects, custom glass fabrication is often the only solution. Whether it's for architectural designs, unique furniture pieces, or specialized industrial applications,
learn more
Trusted by Global Leaders – Certifications & Client Proof
Industry Certifications
Client Logo Wall
Proudly supplying 4mm clear float glass to:
Testimonials
"SHAHE SHOTT’s 4mm clear float glass reduced our solar panel defect rate by 40%. Their ±0.1mm thickness tolerance is unmatched in China."
— Michael Chen, Procurement Director, LONGi Solar
"We switched from a Chinese competitor after receiving 3 batches with visible distortions. SHAHE SHOTT’s Intermac CNC cutting and GB15763.2-2005 certification gave us the consistency we needed for our NYC skyscraper project."
— Sarah Mitchell, Senior Architect, Skidmore, Owings & Merrill