Insulated glass, often referred to as insulated glazing or double glazing, is a type of window or glass panel that consists of two or more glass layers separated by a space filled with air or gas, typically argon or krypton. The layers are sealed around the edges to create an airtight barrier.
This design offers several benefits:
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Thermal Insulation: The air or gas between the panes reduces heat transfer, helping to maintain a consistent indoor temperature and improving energy efficiency. It keeps the cold air out during winter and helps prevent heat from escaping in summer.
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Sound Insulation: The space between the panes can also help reduce noise transmission, making it a good choice for areas with high levels of outside noise.
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Condensation Prevention: The insulating properties help prevent condensation from forming on the inside of the glass, reducing moisture buildup and potential damage.
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UV Protection: Some types of insulated glass come with coatings that block harmful ultraviolet (UV) rays, protecting furniture and flooring from sun damage
How Insulated Glass made?1. Selection of Tempered Glass
The process begins with selecting high-quality tempered glass of the required thickness and specifications. Since tempered glass is already heat-treated, it provides superior strength and thermal resistance.
2. Washing and Drying
Each tempered glass sheet is thoroughly washed using deionized water and special detergents to remove dust, grease, and other contaminants. Proper cleaning ensures strong adhesion of sealants and spacers.
3. Spacer Bar Preparation
A spacer bar, made of aluminum is cut to size and filled with a desiccant (moisture-absorbing material). The spacer maintains the gap between the glass panes and prevents condensation inside the unit.
4. Primary Sealing (Assembly of Glass and Spacer)
The spacer bar is placed around the perimeter of one tempered glass pane.
A butyl primary sealant is applied to bond the spacer to the glass.
The second tempered glass sheet is placed on top, forming an airtight cavity.
5. Filling with Insulating Gas
The space between the glass panes can be filled with argon insulating gases to improve thermal efficiency and reduce heat transfer.
6. Secondary Sealing
A polyurethane, polysulfide, or silicone sealant is applied around the edges of the glass unit to ensure airtightness, durability, and structural integrity.
7. Quality Inspection
The insulated tempered glass undergoes strict quality control tests, including:
Seal Integrity Test: Ensuring airtight sealing to prevent moisture entry.
Gas Leakage Test
Optical & Visual Inspection: Checking for bubbles, misalignment, or distortions.
8. Packing and Delivery
The finished insulated tempered glass units are carefully packed with protective films, wooden crates, or customized packaging materials to prevent damage during transportation.