How to avoid choosing inferior PVC doors and windows that release harmful substances?

2026,01,05

When renovating or replacing doors and windows, choosing high-quality PVC doors and windows not only improves living comfort but also effectively avoids health risks caused by the release of harmful substances from inferior products. The following will explain in detail how to avoid inferior PVC doors and windows and ensure you choose environmentally friendly and durable products, covering selection criteria, two types and their suitable projects, and advantages.

1. Selection Criteria: Controlling Quality from the Source

Raw Material and Formula: High-quality PVC doors and windows use a non-toxic and pollution-free mercaptan organotin T-137 stabilizer, and the profile name is "VPVC Profile." Inferior products often use lead-containing lead salt stabilizers, and the profile name is "PVC Profile." Lead salt stabilizers release lead dust under long-term exposure to sunlight and heat, causing lead poisoning and lead pollution, harming human health. Therefore, when choosing, be sure to check the profile name on the product packaging or label to avoid purchasing lead-containing PVC profiles.

Packaging Labeling and Quality Inspection Certificates: Reputable manufacturers' PVC door and window packaging includes complete labeling, such as product name, applicable standards, manufacturer name, address, and quality grade. Text and graphics should be clearly aligned without overlapping or misalignment. Additionally, request a product quality inspection certificate from the distributor and check that the certificate or inspection report lists lead content to ensure the product meets environmental protection requirements.

Product Color and Surface Quality: High-quality PVC doors and windows have a pure, ivory-white color with a smooth, translucent, and soft finish. They will not turn grayish-black even when exposed to atmospheric sulfur and sulfides. Inferior products are bluish-white with a harsh sheen and tend to turn grayish-black after a period of use. Furthermore, high-quality products should have a clean, flat, and smooth surface, free of scratches and dents, with no open welds or breaks, and should have a protective film.

Hardware and Assembly Quality: High-end PVC doors and windows typically use metal hardware, which offers superior internal strength, appearance, and usability compared to plastic hardware. Regarding assembly quality, check if the appearance is smooth and undamaged, if the welded corners are neatly cleaned, if all hardware is included, and if steel reinforcement is used. Avoid choosing PVC Windows produced by street workshops, as their quality and reputation cannot be guaranteed.

2. Two Types and Suitable Projects

Ordinary PVC Plastic Doors and Windows:Suitable for general residences, office buildings, and other places with low requirements for sound and heat insulation. These doors and windows are affordable, durable, not easily deformed, and have good corrosion resistance and resistance to acids, alkalis, and salts. When choosing, pay close attention to the profile wall thickness (ideally greater than 2.5 mm), internal cavity structure (three-cavity structure is best), and whether it contains anti-aging and UV-resistant additives.

Insulating Glass PVC Doors and Windows:For residences with high outdoor noise or places requiring higher thermal insulation performance, insulating glass PVC doors and windows are an ideal choice. They have excellent sealing and sound insulation effects, effectively isolating external noise and heat transfer. When choosing, in addition to paying attention to the quality of the profiles, check whether the glass has passed the national 3C mandatory safety certification and whether there is dust and moisture in the interlayer.

3. Advantages Analysis: Balancing Environmental Protection and Durability

Superior Environmental Performance: High-quality PVC doors and windows use environmentally friendly profiles and hardware, releasing no harmful substances and meeting national environmental standards. Compared to traditional wooden and steel windows, PVC doors and windows require no painting or maintenance, reducing the release of volatile organic compounds (VOCs) from paint, thus benefiting indoor air quality.

High Durability: PVC doors and windows have excellent anti-aging and UV protection properties, a long service life of approximately 30 years under normal use. Their shape and dimensions are stable, not easily loosened or deformed, and they are self-flammable and non-combustible, contributing to fire safety.

Low Maintenance Costs: PVC doors and windows require virtually no maintenance; only regular cleaning of dust and debris is needed to maintain cleanliness and shine. Compared to wooden windows requiring regular painting and Aluminum Alloy Windows needing corrosion prevention, PVC doors and windows have lower operating costs.

Author:

Ms. Rebecca Lee

E-mail:

sale01@wddoorwins.com

Phone/WhatsApp:

+86 13502225784