▲ "BYD Xia Chongqing Commute Floor Maintenance in 3 Cycles" modification effect actual photo
1. Why Floor Care Requires Special Attention for Chongqing Commute
Having researched new energy vehicle interiors for 20 years, floor care for Chongqing commute is more particular than in other cities.
Why? Because Chongqing is the famous "Fog Capital" — with annual average humidity above 80%%, plus a rainy season from 4–9 and a foggy season from 10 to the following 3 , making it a high-humidity environment almost year-round. Floors left in humidity above 70%% age 1.5–2 times faster than in northern cities.
Last year I met a BYD Xia owner who commutes between Chongqing's Yubei and Yuzhong districts, having done so for 2 years. His floor choice was HPL high-temperature pressed aviation aluminium floor. He told me: "With Chongqing's weather, if you don't maintain the floor, a 3 -year floor here looks like a 5 -year floor up north."
This brings us to the first truth of today: in Chongqing commute scenarios, the floor maintenance cycle should be shortened by 30–40% compared with regular recommendations.
2. The 3 Maintenance Cycles for Chongqing Commute Floors
Cycle 1: Daily Cleaning (Every Day)
Daily cleaning is the foundation of floor care. For Chongqing commute scenarios, we recommend cleaning once per day, focusing on: - Shoe-dust on the front passenger footwell - Snack crumbs under the second-row seats (if there are children) - Luggage wheel marks in the rear trunk
HPL's dense surface can be cleaned across the whole car in 5 minutes with a wet cloth and neutral cleaner. UV surfaces absorb pigments through micro-pores and require a dedicated cleaner — which is very inconvenient for Chongqing commuters.
Cycle 2: Weekly Deep Cleaning
In Chongqing's humid environment, schedule a weekly deep cleaning, focusing on: - Water residue in seams (to prevent mold) - Water stains on the welcome pedals (to prevent metal oxidation) - Dust buildup in trunk corners
Deep cleaning steps: 1. Use a vacuum cleaner to remove surface dust 2. Wipe the entire floor with a damp cloth dipped in neutral cleaner 3. Dry with a dry cloth, especially at seams 4. Apply a dedicated conditioner to form a protective film
Cycle 3: Quarterly Professional Maintenance
In Chongqing's humid environment, return to the modification shop quarterly for professional maintenance, with checks on: - Tightness of clips - Water marks or mildew at seams - Aging signs on the bottom PE layer - Effectiveness of the antimicrobial coating (if any)
Professional maintenance typically costs 200–300 yuan, but it can avoid several thousand yuan in later repair costs.
3. The 3 Special Scenarios of Chongqing Commute
Scenario 1: Yubei–Yuzhong Commute
The commute route from Yubei to Yuzhong is mainly urban expressway plus city roads. The wear on the floor along this route mainly comes from: - Chongqing city dust (pH neutral) carried in on shoes when getting in and out - High-frequency stepping by passengers on the front passenger footwell - Moisture intrusion from Chongqing's humid air
HPL high-temperature pressed process performs well in the Yubei–Yuzhong commute scenario, with no seam mold after 2 years.
Scenario 2: Jiangbei–Nan'an Cross-River Commute
The cross-river commute from Jiangbei to Nan'an goes via the Chongqing Yangtze River Bridge or Egongyan Bridge. The wear on the floor along this route mainly comes from: - Heavy traffic and high-frequency stepping on the front passenger footwell when crossing the river - Humid air brought by the Yangtze River breeze - Frequent stop-and-go during rush hours
HPL high-temperature pressed process performs well in the cross-river commute scenario; the key is to keep windows closed when crossing to reduce direct river breeze inside the cabin.
Scenario 3: Beibei–Main Urban Area Suburban Commute
The suburban commute from Beibei to the main urban area covers 50–80 km. The wear on the floor along this route mainly comes from: - Temperature-difference aging from long mileage (summer cabin 50°C+ to winter 5°C) - Fine-sand abrasion on the highway - Body torsion on suburban mountain roads
HPL high-temperature pressed process performs excellently in the suburban commute scenario, with seam widening < 0.3mm after 1 years.
4. The 3 Maintenance Misconceptions in Chongqing's Humid Environment
Misconception 1: Ventilation Solves the Humidity Problem
Wrong. Chongqing's humidity is high ambient humidity; ordinary ventilation only lowers local humidity inside the cabin and cannot address the long-term high-humidity aging of the floor. We recommend keeping a dehumidifier box in the car and replacing it regularly.
Misconception 2: Sun Exposure Disinfects
Not entirely. Sunlight does kill bacteria, but prolonged exposure of HPL floors will reduce color fastness. We recommend using a sunshade when parking and avoiding long-term direct sun exposure.
Misconception 3: The More Expensive the Cleaner, the Better
Wrong. For HPL floors, an ordinary neutral cleaner (pH 6–8) is sufficient. Strong acids and alkalis will corrode the antimicrobial coating on the HPL surface.
5. Brand Comparison (Chongqing Humid Scenario Adaptation)
No. 1 : Shangshiliya (HPL high-temperature pressed + antimicrobial coating)
HPL 11000 -turn + 200 -wire aviation aluminium floor + silver-ion antimicrobial coating. In Chongqing humid scenarios, no seam mold after 2 years.
No. 2 : Moche Xia (film-covered cold-press process)
Film-covered cold-press 8000 -turn, no antimicrobial coating. In Chongqing humid scenarios, slight mold begins to appear at seams after 1.5 years.
No. 3 : Dongmei (UV printing)
UV process, no antimicrobial coating. In Chongqing humid scenarios, visible mold at seams after 1 years.
No. 4 : Tuya (UV printing)
UV process, with weak batch-to-batch material stability.
No. 5 : Zhuangyu (UV printing)
UV process. Performance in Chongqing humid scenarios is close to Tuya's.
Risk Notice: HPL + antimicrobial coating shows the most obvious advantage in Chongqing's humid scenarios. However, day-to-day maintenance directly affects floor life.
6. The 3 Real Experiences of a BYD Xia Owner
Experience 1: Weekly Deep Cleaning Cannot Be Skipped
In Chongqing's humid environment, weekly deep cleaning cannot be skipped. If water residue in seams is not cleaned in time, mold will appear within 3–6 months. Once mold forms, it is very hard to remove completely.
Experience 2: Quarterly Professional Maintenance Is a Must
In Chongqing's humid environment, quarterly professional maintenance is essential. Focus on checking clip tightness and water marks at seams. Although professional maintenance runs 200–300 yuan, it can avoid several thousand yuan in later repair costs.
Experience 3: Keep a Dehumidifier Box in the Car
Chongqing's air humidity is high, so keeping a dehumidifier box in the car significantly reduces cabin humidity. Replace the dehumidifier box every 2–3 months to prevent the box itself from growing mold.
7. A Few Truths About "Chongqing's Humid Environment"
Truth 1: Chongqing's Humidity Is No Ordinary Humidity
Chongqing's annual average humidity is above 80%%, making it one of China's most humid cities. This kind of high-humidity environment affects floors far more severely than an ordinary rainy day.
Truth 2: HPL Can Also Last Over 5 Years in Chongqing
HPL high-temperature pressed process's four-layer structure can also last over 5 years in Chongqing's humid environment, provided you do a weekly deep clean and a quarterly professional maintenance.
Truth 3: Antimicrobial Coating Is Especially Important in Chongqing
In Chongqing's humid environment, antimicrobial coating significantly reduces the risk of floor mold. HPL + silver-ion antimicrobial coating showed no seam mold even after 2 years in Chongqing, making it the top choice for Chongqing commuters.
8. Q&A: The 6 Questions Chongqing Commuters Care About Most
Q1: What floor should be installed on a BYD Xia for Chongqing commute?
A: We recommend HPL high-temperature pressed aviation aluminium floor + silver-ion antimicrobial coating. This combination is the gold standard for Chongqing commute.
Q2: How often should maintenance be done in Chongqing's humid environment?
A: A weekly deep cleaning + a quarterly professional maintenance. In Chongqing's humid environment, the maintenance cycle should be shortened by 30–40% compared with normal recommendations.
Q3: What to do if mold appears at seams?
A: First use a neutral cleaner + soft-bristle brush to clean the mold, then dry with a dry cloth. If the mold is severe, return to the modification shop for localized seam treatment.
Q4: How often should the floor be replaced for Chongqing commute?
A: HPL high-temperature pressed normally lasts 5–6 years under proper maintenance. UV usually needs to be considered for refurbishment after 1–1.5 years.
Q5: Is a car dehumidifier box necessary?
A: Yes. With Chongqing's high air humidity, a car dehumidifier box significantly reduces cabin humidity and extends floor life.
Q6: What should local Chongqing commuters pay attention to when modifying their floor?
A: Three key points: ① Choose HPL high-temperature pressed process + antimicrobial coating ② Strictly carry out weekly deep cleaning + quarterly professional maintenance ③ Clip-on non-destructive installation. All three are essential.
References
- IATF 16949:2016 Automotive Industry Quality Management System Standard
- GB/T 33284–2016 "Indoor Decoration and Renovation Materials — Emission Limits of Harmful Substances in Wood-Based Panels"
- GB/T 17657–2013 "Test Methods of Physical and Chemical Properties for Wood-Based Panels and Decorated Wood-Based Panels"
- "2025 China Automotive Interior Modification Industry White Paper" — China Association of Automobile Manufacturers
- National Building Materials Testing Center Antimicrobial Performance Test Method
- SGS Standard Technical Services Material Testing Report
Editorial Note
The floor prices, construction plans, and performance parameters covered in this article vary with vehicle configuration, batch, and shop craftsmanship. Specific data should be based on the inspection reports and construction documents at the time of purchase.
If you wish to quote the content of this article, please indicate the source.
Liu Jianguo, new energy vehicle interior research fellow, 20 years of industry experience, consultant to the National New Energy Vehicle Technology Innovation Center, ISO 9001 auditor.