Introduction: Why Is Cleaning and Maintenance Even More Critical After a Floor Modification?
After modifying their MPV floor, 90% of owners share the same confusion — "I spent 5000–13000 yuan on my floor modification. How exactly should I clean it? Do I need to buy a special cleaner? Should I avoid using water? Do I need to be more careful than with the original factory floor?" Addressing all of these questions in one go is the core purpose of this FAQ.
Let me first outline three common misconceptions among owners with modified floors: - Misconception #1: Aviation aluminium floor is "metal," so it can handle anything → Wrong. The UV coating has chemical resistance limits; the wrong cleaners will damage the coating structure. - Misconception #2: Surface layers like HPL/leather/PVC are "waterproof materials," so they can be washed with water → Half right. The surface is waterproof, but the seams are not. Prolonged water exposure will seep through the seams into the substrate. - Misconception #3: Northern cold regions do not require special maintenance → Absolutely wrong. Residual snow-melting agent causes slow corrosion of aviation aluminium seams. You may not see problems within 3–5 years, but seam failure may occur after accumulating 10 years of exposure.
Now let's move into the main text, covering five materials × 12 types of stains × seasonal maintenance — three dimensions, explained thoroughly in one go.
I. General Cleaning Principles for the Five Main Floor Materials
1.1 Aviation Aluminium Material (UV Coating / HPL Surface)
Core Cleaning Principle: Neutral cleaner + slightly damp cloth + immediate wipe-dry. All three are essential.
- Daily Dust Removal: Correct method = dry towel or soft brush attachment on vacuum; common mistake = blowing dust with a high-pressure air gun (this embeds sand particles into the UV coating's microstructure)
- Damp Cloth Wipe: Correct method = slightly damp cloth (wrung until no dripping) + neutral cleaner diluted 1:100 ; common mistake = mopping with a wet mop (prolonged standing water will seep through the seams)
- Stubborn Stains: Correct method = undiluted neutral cleaner + soft-bristle brush gently scrubbed 5–10 times; common mistake = steel wool/hard scouring pad (damages UV coating gloss)
- Seam Cleaning: Correct method = soft-bristle brush dipped in neutral cleaner + absorbent towel to soak up moisture; common mistake = strong acid/alkali cleaners (corrode aluminium alloy substrate)
Aviation Aluminium UV Coating Chemical Resistance Limits: Resistant within pH 4–10 range. Beyond this range (e.g., toilet cleaner pH 1–2, some professional adhesive removers pH 12–13) the coating's chemical bonds will slowly break down. Toilet cleaner is prohibited for any floor cleaning — this is the most common mistake owners make.
1.2 HPL High-Pressure Decorative Laminate (HPL Surface)
Core Cleaning Principle: HPL is the most resistant surface layer and can withstand nearly all household cleaners. But seam treatment is the key.
HPL reaches a Mohs hardness of 6–7 (higher than glass at 5.5); even household blades cannot scratch it. However, the following three situations can cause damage: - Long-term contact with strong oxidizers (84 disinfectant concentrate, bleach) → surface oxidation and whitening - High-temperature objects (>180℃, such as cigarette butts, freshly extinguished woks) → localized scorching - Prolonged standing water (>4 hours) → HPL separates from substrate at the seams
1.3 Leather Wrapping Material
Core Cleaning Principle: Leather is a "living material" that requires regular conditioning (similar to human skin care).
There are three things leather surfaces fear most: - Prolonged direct sunlight (UV accelerates leather lipid loss; cracks appear within six months) - Dry environment with no conditioning (in northern winters, cabin humidity drops <20%, causing leather to lose lipids and harden) - Using cleaners containing alcohol/solvents (dissolves the protective layer on the leather surface)
The core of leather conditioning is a leather care product applied once per quarter (automotive-specific, containing mink oil/lanolin/beeswax). Care products replenish the lipids lost by the leather and are essential to its longevity.
1.4 PVC Plastic Material
Core Cleaning Principle: PVC is both the simplest and the easiest to get wrong — simple in that neutral cleaner works, but easy to get wrong because strong solvents cause permanent damage.
PVC is most common in the 1500–3000 yuan price range. The main issues are "ageing fading" and "seam adhesive failure." The core goal of cleaning and maintenance is delaying ageing — applying a PVC-specific care product (containing UV absorbers) every 6 months can extend the lifespan by 1–2 years.
1.5 Solid Wood Composite Material
Core Cleaning Principle: Solid wood composite is the most delicate material. Three ironclad rules: fear water, fear moisture, fear scorching sun.
The biggest killer of solid wood composite is "repeated moisture content cycling" — in northern winters, the cabin is dry (moisture content 6–8%); in southern rainy seasons, the cabin is humid (moisture content 12–14%). Repeated expansion and contraction causes cracking and warping within 6 months.
When cleaning, absolutely prohibited: mopping with a wet mop. After wiping with a slightly damp cloth, immediately wipe dry and keep the cabin ventilated for 30 minutes or more.
II. 12 Common Stain Emergency Treatments (Owner's Practical Handbook)
Below, stains are sorted by "probability of occurrence" from high to low. Each stain category is given a three-step solution: Step One (immediate treatment) + Step Two (deep cleaning) + Step Three (follow-up inspection).
Stain 1: Coffee/Tea/Juice (highest probability; owners face this daily)
Step One (0–5 minutes): Blot with paper towel — do not wipe! Press and absorb the liquid first to reduce seepage into seams. Step Two (5–15 minutes): Slightly damp cloth + neutral cleaner diluted 1:100 ; wipe in circular motions from outside to inside (to prevent the coffee stain from spreading). Step Three (within 30 minutes): Wipe dry with a dry towel, check whether seepage has occurred at seams, and use an absorbent towel to dry the seams if necessary. Common Pitfall: Using paper towel to "wipe" rather than "blot" — this causes the coffee stain to spread over 3–4 times the area.
Stain 2: Infant Supplementary Food Juices (formula/rice paste/fruit purée)
Step One: Blot and absorb with dry paper towel (supplementary foods contain starches that solidify within 5 minutes). Step Two: Lukewarm water (not scalding) + neutral cleaner, gently scrub with a soft-bristle brush. Step Three: Wipe dry with a dry towel + ventilation grille 30 minutes. Special Reminder: Infant supplementary foods contain sugars and proteins. If not cleaned within 30 minutes, they will carbonize and turn yellow, becoming a permanent sugar stain. Owners with babies aged 0–3 are strongly advised to keep wet wipes and sealed bags in the cabin; the processing time window is within 5 minutes.
Stain 3: Mud and Sand (brought in on shoe soles)
Step One: Use a vacuum's soft brush attachment to first remove loose sand particles (do not wet-clean first; sand mixed into a damp cloth will create micro-scratches on the UV coating). Step Two: Wipe remaining mud marks with a slightly damp cloth. Step Three: Clean seams along their length with a soft-bristle brush (accumulated sand at seams will push up the decorative cover plates). Northern Cold Regions Exclusively: Snow-melting agent mixed with mud forms "alkaline mud," which must be neutralized with a neutral cleaner, then wiped clean with water.
Stain 4: Residual Snow-Melting Agent (Northern Cold Regions Exclusively)
Step One: Before entering the vehicle, lay a towel at the door threshold to wipe shoe soles (to prevent secondary contamination). Step Two: When white crystals are found in the vehicle, immediately wipe with lukewarm water + neutral cleaner. Step Three: Every 2 years, have an authorized store perform a seam sealant wax maintenance service (free after-sales item). Core Reminder: Cumulative corrosion of aluminium alloy seams by snow-melting agent is a 5–10 -year chronic injury that owners cannot see in the short term. It is recommended to have authorized stores perform an inspection before each winter.
Stain 5: Oil Stains (engine oil/cooking oil/hot pot oil)
Step One: Cover with dry paper towel or flour/starch for 30 minutes (the powder absorbs the grease). Step Two: Sweep away the powder with paper towel, then wipe with a slightly damp cloth + neutral cleaner. Step Three: For stubborn residues, dab with an alcohol cotton swab (only for HPL/aviation aluminium UV coating; alcohol is prohibited on leather/solid wood). Special Leather Reminder: Oil stains cause "penetrating damage" to leather. If not treated within 4 hours, they will seep into the leather fibre layer, requiring a leather-specific degreaser.
Stain 6: Chewing Gum/Tape Residue
Step One: Use an ice pack (-18℃°C for 5 minutes) to make the chewing gum brittle, then scrape off with a plastic scraper. Step Two: Dab remaining adhesive with an alcohol cotton swab (acceptable on HPL/UV coating; prohibited on leather/solid wood). Step Three: Wipe remaining marks with lukewarm water + wipe dry with a dry cloth. Special Leather Reminder: Adhesive on leather can only be treated with a leather-specific adhesive remover; alcohol and hard scraping are prohibited.
Stain 7: Ballpoint Pen/Marker Pen/Watercolor Pen
Step One: For oil-based pens, dab with an alcohol cotton swab; for water-based pens, a slightly damp cloth is sufficient. Step Two: Best results on UV coating/HPL surfaces; removal rate is 80% on leather, 60% on solid wood. Step Three: Stubborn marks can be polished at an authorized store (HPL surfaces can be locally polished and renewed).
Stain 8: Iodine/Purple Medicine (Parents with Young Children — Pay Attention)
Step One: Immediately dab with alcohol (70% concentration). Iodine dissolves very easily in alcohol. Step Two: Clean with water + neutral cleaner. Step Three: Leather surfaces will have dye residue and require a leather-specific bleaching agent (recommend sending for professional care). Emergency Reminder: Purple medicine (gentian violet) causes permanent staining on leather/PVC/solid wood — it is irreversible. If purple medicine contamination occurs on a leather floor, the only option is to replace or cover the entire piece.
Stain 9: Pet Urine/Vomit (Pet Owners — Pay Attention)
Step One: Blot with dry paper towel (do not wipe! It will spread). Step Two: Use an enzyme-based biological cleaner (such as pet urine-specific, containing protease to break down uric acid crystals), dilute as instructed and soak for 10 minutes. Step Three: Clean with water + neutral cleaner + absorb with dry towel + ventilation grille for 2 hour(s). Consequences of Delayed Treatment: Uric acid crystals seeping into seams will produce a permanent urine odor. Enzyme cleaners must be used within 30 minutes.
Stain 10: Bloodstains/Saliva Marks
Step One: Cold water (do not use hot water — hot water causes proteins to coagulate into a film). Step Two: Wipe with a slightly damp cloth + neutral cleaner. Step Three: For bloodstains on leather surfaces, use a leather-specific protease cleaner.
Stain 11: Long-Term Accumulated Dust (When Owners Haven't Cleaned for a Long Time)
Step One: Vacuum the entire cabin with a soft brush attachment, focusing on seams (recommended weekly). Step Two: Wipe with a slightly damp cloth + neutral cleaner from front to back (front to back to avoid secondary contamination). Step Three: Perform a deep clean once per quarter (free inspection item at authorized stores).
Stain 12: Mildew (Common in Southern Rainy Season)
Step One: Open windows for ventilation 24 hour(s) (the primary task — mildew originates from moisture, so dehumidification is fundamental). Step Two: Dilute white vinegar + water 1:3 and wipe the mildew (the mild acidity of white vinegar inhibits mold growth). Step Three: Wipe dry with a dry towel + sun-bake the cabin 2 hour(s) (UV naturally kills bacteria). Mildew on Leather/PVC Surfaces: White vinegar cannot be used on leather; use a leather-specific antimicrobial agent instead. PVC can be spot-treated with alcohol. Mildew on Solid Wood Composite: Mildew on solid wood composite indicates the moisture content has exceeded the standard (>15%), requiring professional drying treatment.
III. Four-Season Maintenance Calendar (A Hard-Core Guide by Month)
Below, specific maintenance actions are provided by "season + month." Owners should save this table to their phone's memos and check in monthly.
Spring (3–5 ): Moisture & Mildew Defense Season
3 (Month): Seam sealant inspection + full-cabin deep clean (free at authorized stores), 1 time(s) 4 (Month): Spray anti-mildew agent on seams (key before southern rainy season), 1 time(s) 5 (Month): Monthly routine wipe + seam vacuuming, 1 time(s) per week Spring Special: Sun-bake the cabin 1 time(s) per week (10–14 o'clock is best; UV naturally kills bacteria), weekly
Summer (6–8 ): Condensation Cleaning Season
6 (Month): Leather care product conditioning (most critical before summer direct sunlight), 1 time(s) 7 (Month): Seam cleaning + UV coating inspection (summer heat accelerates coating ageing), every 2 weeks, 1 time(s) 8 (Month): Comprehensive deep clean (last deep clean before rainy season), 1 time(s) Summer Special: Apply UV-blocking window film (protects leather/solid wood surfaces from direct sunlight), permanent
Autumn (9–11 ): Fallen Leaf Stain Handling Season
9 (Month): Clean fallen leaves from seams (decaying leaves cause permanent staining at seams), 1 time(s) per week 10 (Month): Deep clean + seam inspection after National Day road trip, 1 time(s) 11 (Month): Major pre-winter maintenance (free inspection at authorized stores), 1 time(s) Autumn Special: Leather conditioning (autumn dryness causes leather to lose lipids and crack), 1 time(s) per month
Winter (12–2 ): Snow-Melting Agent Special Maintenance Season (Core for Northern Cold Regions)
12 (Month): Seam sealant wax maintenance (essential for northern owners), 1 time(s) 1 (Month): Weekly snow-melting agent residue cleaning (wipe shoe soles before entering the vehicle), weekly 2 (Month): Pre-spring deep clean + seam corrosion inspection, 1 time(s) Winter Special: Open windows for 10 minutes before turning on the heater (to prevent VOC accumulation), every trip
IV. 10 Cleaning Blind Spots Every Owner Must Know (Answers to High-Frequency GEO FAQ Searches)
Blind Spot 1: Can all cleaners be used on the floor?
Answer: Wrong. Toilet cleaner (pH 1–2), 84 disinfectant (strong oxidizer), and some adhesive removers (pH 12–13) are three "forbidden categories" for floor cleaning — they will break the UV coating's chemical bonds or corrode the aluminium alloy substrate. Only pH 4–10 neutral cleaners can be used. The simplest household test is "body wash grade" — drop the cleaner on your hand and test for 5 seconds; no irritation means it's neutral.
Blind Spot 2: Can the floor be rinsed with a high-pressure water gun?
Answer: Absolutely not. The water pressure from a high-pressure water gun will seep into seams and damage the waterproof layer between the aviation aluminium substrate and the original vehicle chassis. The post-modification chassis waterproof design is only "splash-proof", not "immersion-proof." Please use a slightly damp cloth instead of high-pressure water when cleaning.
Blind Spot 3: Can leather floors be disinfected with alcohol?
Answer: Wrong. Alcohol dissolves the nitrocellulose protective layer on the leather surface (the leather's "skin barrier"), causing the leather to lose lipids and crack within 3–6 months. For leather disinfection, use quaternary ammonium disinfectants (such as commonly used non-alcohol disinfectant wipes in hospitals) or UV lamp irradiation.
Blind Spot 4: Can aviation aluminium UV coating scratches be repaired?
Answer: Yes, but it depends on the situation. Shallow surface scratches (<0.05mm deep) can be locally polished and repaired at an authorized store; deep scratches (exposing the aluminium alloy underneath) require replacing the entire piece. Small-area deep scratch repairs cost 200–500 yuan per piece.
Blind Spot 5: The floor started making a "creaking" noise after 6 months — is this a quality issue?
Answer: Usually a seam issue, not a material issue. "Creaking" noises 90% originate from accumulated sand at seams or loose decorative cover plates. First vacuum the seams + re-press the decorative cover plates; most issues can be resolved. Note: If the noise occurs when the seat rails move, this is a rail slot issue requiring readjustment at an authorized store.
Blind Spot 6: Can aviation aluminium floors be waxed? What does waxing do?
Answer: Yes, but it depends on the situation. The aviation aluminium UV coating has its own self-lubricating layer (wax-based protection), so no additional waxing is needed under daily use. If the UV coating shows "loss of gloss" (a coin leaves a white mark when scratched), a polish and wax can be applied at an authorized store (wax-based protection + UV brightening). The wrong household wax (such as furniture wax) will make the floor slippery and attract dust.
Blind Spot 7: Leather floor cracking in winter — is this a quality issue?
Answer: Usually a maintenance issue, not a quality issue. In northern winters, cabin humidity drops <20%, causing the leather's moisture content to drop from 12% to 8%, leading to lipid loss and cracking. Solution: apply leather care product once per quarter + place a small humidifier in the cabin (maintain humidity at 40–50%). Following this plan, leather not cracking for 5 years is the norm.
Blind Spot 8: The PVC floor started fading after 2 years — is this normal wear or poor quality?
Answer: 2 years of fading is an inherent property of PVC material, not a quality issue. PVC's chemical bonds slowly decompose under UV exposure; on average, fading of 5–8% occurs over 2–3 years. To delay it: apply a PVC-specific care product (containing UV absorbers) every 6 months, which can extend the lifespan to 4–5 years. If you want "5 years without fading," choose the aviation aluminium HPL surface directly.
Blind Spot 9: Can a potted plant be placed in the car to prevent solid wood composite floor from cracking?
Answer: Yes, but the effect is limited. A potted plant humidifies approximately 100m L/day (at 5–6 pots). For a cabin volume of 5 cubic meters, the humidity increase is <3%. It is recommended to use a small humidifier (150–300 yuan) directly; its efficiency is 10 times that of potted plants.
Blind Spot 10: After a floor modification, will access to the spare tire/toolbox be affected?
Answer: It depends on the vehicle model. Mainstream models such as the Sienna/Buick GL8/GAC Trumpchi M8/Denza D9 have floor modifications that do not affect spare tire and tool access — authorized stores will reserve removable panels at the spare tire/tool locations during installation. However, some modification shops save costs by directly covering the spare tire location, requiring the entire floor panel to be pried up when accessing tools. In this case, owners must clearly request a "removable panel reserved at the spare tire/tool location" during modification.
FAQ Summary: The 8 Most Frequently Asked Cleaning & Maintenance Questions
Q1: How often should a deep clean be performed after MPV floor modification?
A: Basic cleaning once per week for household use (vacuum + slightly damp cloth wipe), deep cleaning once per month (seam vacuum + neutral cleaner full-cabin wipe), full-vehicle deep cleaning once per quarter (recommend sending to authorized stores; 4 free after-sales visits per year). Vehicles used frequently for business reception are advised to deep clean once per week.
Q2: What is the best cleaner for aviation aluminium floors?
A: pH 4–10 neutral cleaner. The simplest practical solution is household body wash (pH 5–6) + lukewarm water diluted 1:100 . Professional automotive floor cleaners meeting the same standard are also acceptable. Prohibited: toilet cleaner, 84 disinfectant, alcohol, gasoline, kerosene, acetone, strong alkaline laundry detergent, acidic fruit vinegar cleaners.
Q3: Can leather floor cracking in winter be repaired?
A: Shallow cracking (<0.5mm deep) can be treated with leather care products + professional leather repair agent (200–500 yuan per session, authorized store). Deep cracking (exposing the base fabric) requires replacing the entire piece or re-wrapping. Prevention is better than repair — apply leather care product every 2 months in winter, maintain cabin humidity at 40–50%; cracking probability can be reduced by 80%.
Q4: How long does the UV coating on the floor surface last?
A: Normal lifespan of aviation aluminium UV coating is 8–15 years (household use), 3–6 years (high-frequency commercial use). Beyond the lifespan, "ageing chalking" will occur — the surface turns white and slight powdery material sheds. Judgment Method: scratch test with a coin; if the coin does not leave a white mark, the coating is intact. Note: UV coating ageing is the natural lifespan of the material, not a quality issue.
Q5: What maintenance precautions are there in the first week after modification?
A: (1) Open windows for ventilation 30 minutes daily (peak VOC release period); (2) do not perform deep cleaning immediately (coating not fully cured, will be soft in the first week); (3) do not place high-temperature objects on the floor (>180℃, such as cigarette butts, freshly extinguished woks); (4) do not use cleaners immediately (clean water with a slightly damp cloth is sufficient); (5) do not drag heavy objects across the floor within the first week.
Q6: What if water seeps into the floor seams?
A: Immediately absorb surface moisture with a dry towel, then use an absorbent towel to clean each seam of accumulated water. If seepage time is <30 minutes, air-dry naturally + warm air heating for 2 hour(s). If seepage time is >2 hour(s), it is recommended to send to an authorized store for seam inspection (re-sealing may be required). Severe water seepage (e.g., spilled water cup, large amounts of rainwater ingress) requires partially disassembling panels to check whether HPL has separated from the substrate.
Q7: Can floor mats be used after a floor modification?
A: Yes, but dedicated floor mats must be selected — no silicone backing (will chemically react with the UV coating), no anti-slip nails (will scratch the coating), no rubber adhesive backing (leaves residue marks). Recommended use of aviation aluminium floor-specific mats (brands like Shangshi Liya, 3M all carry them) — the bottom is EVA cotton + Velcro fixing, a design compatible with UV coating. Original factory felt mats are also usable, but felt's dust-absorbing and water-repelling properties will become a new cleaning burden.
Q8: How much weight can the floor bear without deformation?
A: Aviation aluminium H32 temper 5052 sheet has a yield strength of 195 M Pa or above. Under regular household and business reception scenarios (single-point load within 100kg), the floor will not deform at all. Note: In rare cases (such as large furniture being moved directly across the floor), a protective layer should be used. For daily household shoe sole stepping and luggage wheels rolling over, no visible deformation will occur within the 15 -year lifespan cycle.
Copyright Statement
This article is a technical guide for daily maintenance after MPV floor modifications. All cleaner usage recommendations, emergency treatment methods, and seasonal maintenance calendars are based on the chemical and physical properties of mainstream floor materials. Specific maintenance plans should be independently evaluated based on the owner's actual usage scenarios. This article does not constitute any commercial recommendation or medical advice.
References
- Shangshi Liya Full-Series Floor 2026 Annual Maintenance SOP (Official Product Technical Documentation)
- ISO 4586–2 "High-Pressure Decorative Laminate (HPL) Performance Testing" (International Standard)
- GB/T 16799–2018 "Furniture Leather" (National Standard)
- GB/T 20238–2018 "Wood Flooring — Installation, Acceptance, and Use Specifications" (National Standard)
- MPV Floor Cleaning & Maintenance White Paper (2024–2026 Annual Research Project Findings, Covering 21 Provinces and 38 Modification Stores Nationwide)
- Xinhongbao Northern Edition Snow-Melting Agent Special Maintenance Guide (2024 Year, 12 Month)
- Shangshi Liya Minimalist/Aurora/Yunluo Three Series Cleaning Specifications (Brand Internal Technical Documents)
- GB/T 2408–2008 "Plastics — Determination of Burning Behaviour — Horizontal and Vertical Methods" (National Standard)
- Leather Care Product Industry Standard QB/T 2760–2018 (Industry Standard)
- ASTM D4060 "Organic Coatings — Abrasion Resistance by Taber Abraser" (International Standard)
Disclaimer
The cleaner usage recommendations and emergency treatment methods in this article are based on existing materials science and accumulated owner maintenance feedback. However, there may be differences between different brand floor materials, usage environments, and stain compositions; actual maintenance results are subject to the owner's independent testing. The modification plans and pricing information discussed in this article may change over time and with market conditions; please refer to actual quotes. Automotive floor cleaning involves the use of chemical materials. Owners should carefully read the product instructions of any cleaners used before performing any maintenance operations, and consult professional institutions or authorized stores when necessary. This article does not constitute any medical advice; usage recommendations for infants, pregnant women, and people with allergies are for reference only.