The majority of global plastic production relies on ethylene (C2H4), a compound from the oil and gas industry. Although PVC can be made from various hydrocarbons, including coal and plant derivatives like sugar cane, it is generally considered a petrochemical product.

The primary polymer chain of PVC is made up of single carbon bonds, which confer excellent chemical resistance, akin to other versatile plastics such as PE, PP, and PS. While some engineering plastics and specialty resins may be vulnerable to acids or alkalis, PVC is notable for its superior chemical resistance and good mechanical properties. These characteristics, combined with a long track record of successful use, make PVC highly sought after in construction applications, including chemical storage tanks, plastic valves/flanges, drainage/sewage pipes, and window and door frames.

Chemical stability is typical among substances containing halogens like chlorine and fluorine, which applies to PVC resins. These resins also provide fire-retardant properties, durability, and resistance to oil and chemicals. This versatility makes PVC double glazed windows and doors ideal for modern architectural needs. Besides new projects, vinyl double glazed windows and doors are widely used in refurbishments, often replacing traditional materials like metals and wood.

PVC remains white after years of UV exposure due to ingredients like titanium dioxide (TiO2) and an organic form of tin. Titanium oxide is also heavily used in paint manufacturing for pure white paints. These ingredients are expensive but essential for high-quality profiles.

Manufacturers who cut corners on titanium oxide and tin or use low-quality forms might tint their windows light blue to delay yellowing. However, some profiles are purposefully laminated royal blue to meet specific color needs rather than to hide poor quality. We have samples from various Chinese extruders that have yellowed after UV exposure, whereas our profile for double glazed windows and doors has remained complaint-free for over a decade.

Key properties of UPVC double glazed window and door frames:

• Strong and lightweight: UPVC provides excellent abrasion resistance, lightweight, good mechanical strength, and toughness, making it ideal for window and door frames in construction.

• Easy to install: UPVC can be easily cut, shaped, welded, and joined in various styles, meeting architects' demands for unique and precise designs.

• Durable: PVC window and door frames resist weathering, rotting, chemical corrosion, shock, and abrasion, making them suitable for long-life, high-performance applications. Studies indicate that 60% of UPVC profiles in window and door frames have a working life of over 40 years.

• Cost-effective: The excellent cost-performance benefits of UPVC window and door frames, due to their physical and technical properties, make double glazed window products very competitive in price. This value is further enhanced by their durability, lifespan, and low maintenance.

• Environmental impact: UPVC double glazed windows and doors offer excellent thermal insulation, significantly improving building energy efficiency. They require less energy and resources during production, are lighter than wood or steel, reducing emissions during manufacturing and transportation. UPVC double glazed windows are durable, minimizing the need for frequent replacements. They are also recyclable, and energy can be recovered through incineration if recycling is not feasible. If no recovery solution is available, they can be safely deposited in landfills.

• Safe: The profile for double glazed windows and doors is a non-toxic inert polymer, meeting all international safety and health standards.

Our energy efficient double glazed windows and doors, manufactured in Sydney, represent these qualities, offering robust and cost-effective solutions for new constructions and renovations alike.