Maintenance tips for PVC doors and windows vs. aluminum alloy doors and windows

2025,11,18

Key Points and Scientific Basis for the Maintenance of PVC and Aluminum Alloy Doors and Windows

I. PVC Doors and Windows: Anti-aging and Yellowing Prevention Maintenance

1. Basic Protection: Blocking Environmental Damage

Sun Protection: Ultraviolet rays are the main cause of PVC aging. Outdoor products need to be fitted with sunshades or UV-resistant films. Indoor products near windows can be fitted with heat-insulating and sun-protective films. For products exposed to sunlight for more than 4 hours a day, apply PVC-specific protective wax every six months to form a protective layer.

Temperature and Humidity Control: High temperatures accelerate PVC aging. Keep away from heat sources such as stoves and radiators (maintain a distance of at least 30 cm). Avoid leaving the product in a car for extended periods in summer. After use, wipe away any accumulated water in damp environments such as bathrooms and balconies to prevent hydrolysis.

Corrosion Prevention and Cleaning: Avoid using strong acid and alkaline cleaners (such as toilet cleaner and scouring powder). Oil stains should be rinsed immediately with water. Stubborn stains can be wiped with a soft cloth after diluting a neutral detergent.

2. Routine Maintenance: Details Determine Lifespan

Track Cleaning: Sliding door and window tracks easily accumulate dust and should be cleaned monthly with a soft brush to prevent hard objects from causing obstruction and making sliding difficult.

Hardware Maintenance: Locks, pulleys, and other hardware should be inspected regularly. Avoid hanging heavy objects or forcefully opening and closing them. If the operation becomes stiff, spray a small amount of lubricant (such as WD-40) to reduce friction.

Sealing Strip Maintenance: Aging sealing strips can lead to air and water leaks and should be inspected and replaced regularly. Before the low temperatures of winter, wrap the joints with plastic film to reduce the risk of cracking due to temperature differences.

3. Anti-Aging Upgrade: Formula and Process Optimization

Material Selection: Prioritize PVC profiles with added antioxidants (such as BHT) and UV absorbers (such as UV-531), or choose outdoor-specific formulas combining organotin and UV absorbers.

Processing Control: Processing temperature must be strictly controlled within a reasonable range (usually 160-180℃) to avoid decomposition and yellowing caused by high temperatures. Screw speed and compression ratio need to be optimized to prevent localized overheating.

Packaging and Storage: Sealed packaging + storage away from light, avoiding prolonged exposure to air and ultraviolet rays. Storage temperature should be controlled below room temperature to prevent thermal oxidation.

II. Aluminum Alloy Doors and Windows: Corrosion and Rust Prevention Maintenance

1. Cleaning and Maintenance: Gentle Cleaning and Corrosion Prevention

Neutral Cleaner: Wipe with a soft cloth dampened with water or neutral detergent, avoiding strong acids and alkalis (such as laundry detergent, toilet cleaner) that could corrode the coating. In coastal areas, regular cleaning of salt deposits is necessary to prevent electrochemical corrosion.

Post-Rain Treatment: After rain, promptly dry door and window frames and glass, paying particular attention to cleaning any water accumulation in the tracks to prevent water seepage and rust.

Avoid Scratches: Do not step on the aluminum frame or scratch it with hard objects during cleaning to prevent damage to the coating and subsequent oxidation of the exposed metal.

2. Structural Inspection: Tightening to Prevent Loosening and Deformation

Connection Points: Regularly check for loose screws at frame connections. Tighten any loose screws immediately, and if necessary, seal with epoxy adhesive mixed with cement.

Replacement of Vulnerable Parts: Positioning pins, wind braces, floor springs, and other components require regular lubrication. Replace them immediately if wear or breakage is observed.

Sealing Strip Inspection: Aging sealing strips can lead to air and water leaks; they need regular inspection and replacement. High-quality sealing strips (such as EPDM) offer better weather resistance.

3. Corrosion Protection Upgrade: Coating and Process Optimization

Coating Selection: Prioritize aluminum alloy profiles with fluorocarbon coating or anodizing treatment for stronger corrosion resistance. Reapply a protective layer after coating wear.

Installation Protection: Apply protective film during construction to prevent scratches on the coating during handling and installation. Fill gaps between doors/windows and walls with waterproof and moisture-proof materials (such as polyurethane foam) to prevent water seepage and corrosion.

Environmental Control: Avoid prolonged contact between doors/windows and acidic or alkaline substances (such as chemicals or seawater). Increase cleaning frequency in industrial areas or coastal regions.

III. General Maintenance Principles

Regular Inspection: Check PVC doors and windows for signs of aging every 3 months, and aluminum alloy doors and windows for corrosion every 6 months.

Timely Repair: Address any cracks, deformations, loosening, or other issues immediately to prevent escalation.

Professional Maintenance: For complex malfunctions (such as damaged hardware or seal failure), contact the manufacturer or a professional for repair.

Through proper maintenance, PVC doors and windows can last for over 10 years, and aluminum alloy doors and windows for over 20 years, significantly reducing replacement costs and enhancing home security and comfort.

Author:

Ms. Rebecca Lee

E-mail:

sale01@wddoorwins.com

Phone/WhatsApp:

+86 13502225784