# 3mm-19mm Low Iron Ultra Clear Flat Float Sheet Glass (UC-TP)

> 3mm-19mm Low Iron Ultra Clear Flat Float Sheet Glass (UC-TP) — a building / safety glass: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, 15mm, 19 thick. Specs…

- Page: https://machiningglass.com/products/3mm-19mm-low-iron-ultra-clear-flat-float-sheet-glass-uc-tp/
- SKU: MG-761FB1
- Category: Industrial, Architectural & Appliance Glass > Float, Tempered & Laminated Building Glass
- Image: https://machiningglass.com/wp-content/uploads/2026/10/3mm-19mm-Low-Iron-Ultra-Clear-Flat-Float-Sheet-Glass-UC-TP.webp
- Updated: 2026-10-24

Product type: Sheet Glass. Application: Furniture, Door, Building, Window. Model: 75UC-TP855. Function: Low-E Glass.

## Overview

3mm-19mm Low Iron Ultra Clear Flat Float Sheet Glass (UC-TP) is a building / safety glass. Listed geometry: thickness 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, 15mm, 19, flat shape. Optical / electrical data: transmittance 91.2%-91.8%, sheet resistance Grade One. Typical applications: Furniture, Door, Building and Window. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.

## Specifications

| Parameter | Value |
| --- | --- |
| Type | Sheet Glass |
| Shape | Flat |
| Thickness | 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, 15mm, 19 |
| Usage | Furniture, Door, Building, Window |
| Structure | Solid |
| Model NO. | 75UC-TP855 |
| Function | Low-E Glass |
| Nominal Thickness | 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, 15mm, 19 |
| Surface State | Floats Law Glass |
| Grade | Grade One |
| Forming | Float Process |
| Workmanship | Molding machinery |
| Color | Ultra Clear |
| Appearance | Flat |
| Technics | Float Process |
| Silicon Content | Above 80% |
| Light Transmittance | 91.2%-91.8% |
| Transparency | Transparent |
| Water Resist | Grade One |
| Acid Resistance | Grade One |
| Alkali Resistance | Grade Two |
| Low Iron Glass | 3mm-19mm Low Iron Ultra Clear Flat Float Sheet Glass (UC-TP) |
| Key Specifications | Product No. |
| Clear Glass Ingredient | Ingredient |
| Glass Physical And Chemical Properties | Item |
| Product Show | Ultra Clear Float Glass Sheet |
| Optical Parameters | Thick |
| Loading Situations | 20GP |
| Supplier | Guangzhou Topo Glass Co., Ltd. |

## Technical data

| Parameter | Value |
| --- | --- |
| Product No. | UC-TP |
| Product name | Ultra Clear Glass / Low Iron Glass |
| Color | Ultra Clear |
| Thickness | 2mm 3mm 3.2mm 4mm 5mm 6mm 8mm 10mm 12mm 15mm 19mm 22mm |
| Product Size | 1830mmx2440mm / 1650mmx2440mm / 1650mmx2140mm 2140mmx3300mm / 2140mmx3660mm / 2440mmx3660mm etc. |
| Customized | Customized |
| Structure | Solid |
| Light transmittance | 91.2%-91.8% |
| Transparency | Ultra Transparent |
| Technics | Float Process |
| Origin | China |
| Silicon content | above 80% |
| Packing | Safety Plywood Crates |
| MOQ | 20ft |
| Loading Port | Nansha Port / Huangpu Port / Yantian Port / Shekou Port |
| Payments terms | T/T |
| Delivery Time | Within 15 working days |

|   |   |   |   |   |   |   |   |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Ingredient | SiO2 | Fe2O3 | Al2O3 | CaO | MgO | K2O | Na2O |
| Percentage | 71.9±0.5 | <0.013 | 0.5~1.1 | 9.5±0.3 | 3.4±0.3 | 0.02~0.05 | 14.4±0.3 |

| Parameter | Value |
| --- | --- |
| Item | Test Value |
| Density | 2.50g/cm3 |
| Elasticity Modulus | 72.8GPa |
| Shear Modulus | 29.6GPa |
| Poisson's Ratio | 0.228 |
| Vickers Hardness | 545kgf/mm2 |
| Vickers Hardness (after steel) | 573kgf/mm2 |
| Knoop Hardness | 4.2GPa |
| Refraction Index | 1.52 |
| Stress-optical Coefficient | 25.6nm/(cm·MPa) |
| Thermal Expansion Coefficient (20ºC~300ºC) | 86.0×10-7/ºC |
| Softening Point | 725ºC |
| Annealing Point | 551ºC |
| Strain Point | 510ºC |

## What to specify when you request a quote

- **Glass type and thickness** — listed as “3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, 15mm, 19”; name the glass and thickness.
- **Temperature and pressure** — give working temperature, thermal shock and any pressure rating.
- **Strengthening and safety** — state tempering, lamination or the safety standard.
- **Outline and edges** — listed as “Flat”; send a drawing with outline, holes and edge finish.

## Engineering guides for this part

For material grades and coating options, see [Custom Borosilicate Glass Sheets Cut to Size: Precision and Performance](https://machiningglass.com/materials/custom-borosilicate-glass-sheets-cut-to-size-precision-and-performance/). How parts like this are machined and finished is covered in [Precision Glass Cutting Process for Custom Components](https://machiningglass.com/capabilities/precision-glass-cutting-process-for-custom-components/). For an application example, read [Quartz Glass Windows for High-Temperature Appliance Modules](https://machiningglass.com/applications/quartz-glass-windows-for-high-temperature-appliance-modules/). Before sending a drawing, check [Thermal Conductivity of Quartz Glass & Fused Quartz: A Process Guide](https://machiningglass.com/resources/thermal-conductivity-of-quartz-glass-fused-quartz-a-process-guide/). A related standard product is [Custom LED Package Glass Cover Plate](https://machiningglass.com/products/custom-led-package-glass-cover-plate/).

## FAQ

### What sizes and thicknesses are available?

The listing gives thickness 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, 15mm, 19. Custom outlines and thicknesses are made to drawing; state the tolerance you need.

### What optical or electrical performance does it have?

Listed values: transmittance 91.2%-91.8%, sheet resistance Grade One. Confirm the values at your operating wavelength, angle and temperature when you request a quote.

### Where is this building / safety glass used?

Listed applications: Furniture, Door, Building and Window.

### What should I include in a quote request?

Include glass type and thickness, temperature and pressure, strengthening and safety and outline and edges, plus quantity and a drawing if the part is custom.

## Request a quote

Send drawings, tolerances and quantity: https://machiningglass.com/contact/?rfq_product_id=12808#mg-rfq

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Source: Custom Precision Glass Machining — https://machiningglass.com/