Expert Profile: **Zhang Tao** ( 11 years in MPV aftermarket and maintenance, with track records on 2,400+ modified vehicles) > > Core Objective: Address the common anxiety among owners who "don't dare wipe, don't dare wash, don't dare maintain" after floor modifications. Starting from material properties, provide three actionable solutions: daily cleaning, periodic maintenance, and emergency stain treatment – avoiding a one-size-fits-all approach for four different materials.

Many owners experience awkwardness after floor modification – worried about scratching the coating, marring the surface, or selecting the wrong conditioner that causes fogging. In reality, the cleaning and maintenance logic for four mainstream materials (aviation aluminium, HPL, leather, PVC) varies dramatically, and applying one method to all is the fastest way to damage your floor. This article starts from material properties to organize three high-frequency issue categories: daily cleaning, periodic maintenance, and emergency stain treatment.

Why Is the First Week After Modification the Most Critical?

During the 7 days after floor installation, the adhesive layer, clips, and subframe are in the "environmental adaptation period." The six-layer coating system of the aviation aluminium floor (UV primer → color paste → wear-resistant layer → topcoat → stain-resistant layer → mirror finish layer) needs to complete final curing with the cabin temperature and humidity, the leather floor pores need to breathe and off-gas, and the PVC floor needs to release internal stress. At this time, the cleaning method directly determines the floor's surface condition for the next 3 to 5 years.

Q1: How should I clean an MPV floor during the first week after installation? Why can't I wipe it with a wet cloth right away?

The first week after installation is the "dry curing period." Only use a dry fiber cloth or slightly damp wrung-out soft cloth to gently wipe surface dust. Using any cleaners containing water, alcohol, or solvents is prohibited.

Specific steps:

  • Days 1 to 3 : Only use a dry ultra-fine fiber cloth (eyeglass cloth grade, with fiber diameter ≤ 10 micrometers) and wipe gently in one direction along the floor grain, avoiding back-and-forth rubbing that could cause micro-scratches on the coating that hasn't fully cured yet
  • Days 4–7 : Wipe with a barely damp soft cloth wrung to 95% dry; still avoid cleaners. Leather can begin airing out now—open windows for ventilation for over 30 minutes daily.
  • **Absolutely Prohibited**: Using alcohol, gasoline, 84 disinfectants, acid cleaners, or alkaline cleaners – these solvents will directly dissolve uncured UV coatings, and wiping aviation aluminium floors with alcohol within one week will cause permanent clouding marks

**Principle Explanation**: Aviation aluminium flooring surfaces from mainstream brands like Shangshiliya and Mingting use a six-layer UV curing process, with each layer requiring 24–48 hours to complete full cross-linking reaction. Within the first week, coating hardness only reaches 60%–70% of its final value – comparable to the difference between adult and baby skin. Just as the same water is imperceptible to adults but causes allergic reactions in babies.

Q2: What tools are recommended for daily cleaning of aviation aluminium floor? Why can't I use interior car cleaners?

For daily cleaning of aviation aluminium floor, the "two-piece set" is recommended: **microfiber cloth + neutral pH (6.5–7.5) specialized cleaner**. General-purpose interior car cleaners are prohibited because most are formulated for fabrics or plastics, with alkaline pH or containing solvents.

Correct Tools and Process:

  • **Tools**: Microfiber cloth (300 ggsm or above, fiber diameter ≤ 5 μm), soft brush (bristle or PP fiber, steel wool prohibited), neutral cleaner (pH 6.5–7.5, formula without acid/alkali marking not acceptable)
  • **Frequency**: Business reception vehicles cleaned 1–2 times per week, family MPV 1 times per week is sufficient
  • **Process**: First use a dry brush or vacuum to remove particulates (sand, food debris) → spray cleaner onto a microfiber cloth (do not spray directly on the floor) → wipe in one direction along the grain → dry with a clean cloth

Why not use car interior cleaners? Most car interior cleaners are formulated for dashboards, door panels, and fabric seats. They contain silicone oil or solvents to enhance plastic gloss, but silicone oil deposits on the aviation aluminium coating surface, forming an oil film that creates a "looks clean but actually gets more scratched with each wipe" situation. Brands like Sunshiliya and Mingting offer matching neutral cleaners, single bottle 80–150 yuan, lasting 12–18 months.

Differentiated care logic for different flooring materials

The care differences among four mainstream materials fundamentally come down to "surface physical and chemical properties"—aviation aluminium is metal + coating, HPL is high-pressure laminate, leather is organic protein, and PVC is a polymer. One method will inevitably fail.

Q3: How to clean HPL high-pressure decorative laminate flooring? Why can't it be handled the same way as aviation aluminium?

HPL (High Pressure Laminate) flooring surface is a dense layer formed by hot-pressing melamine impregnated paper and phenolic resin at 5–9 M Pa pressure and 120–150℃ temperature, **2–3 times harder than aviation aluminium floor UV coating**, theoretically more scratch-resistant, but **chemical resistance is actually weaker**.

Differentiated cleaning solutions:

  • **Daily cleaning**: Clean water + neutral cleaner is sufficient, **more lenient than aviation aluminium**—can use cleaners with pH 5.5–8.5 range, no need to worry about acid or alkali damage.
  • **Do not use**: Chlorine-based cleaners (e.g., 84 disinfectant), ammonia-based cleaners (e.g., some glass cleaners), acetone-based cleaners (e.g., some nail polish removers)—HPL surface decorative layer will be bleached or bubble.
  • **Special Care**: The HPL surface has fine texture depressions (wood-grain or stone-grain patterns), and dirt easily accumulates in the grooves. It is recommended to give it a deep single-direction brushing along the grain with a soft-bristled brush once per quarter.
  • **Damage Response**: Once deep scratches appear on the HPL surface, they cannot be repaired and the entire panel must be replaced—costing more than aviation aluminium (which can be sanded and polished).

**Purchase Advice**: HPL is suited for family MPV and moderate business reception scenarios. Commercial vehicles (ride-hailing, rental cars) experience frequent boarding and wear, so HPL is not recommended. After Shangshiliya Yunluo series and Mingting mid-to-high-end HPL solutions achieved automotive-grade breakthroughs in 2026 , they passed 1,000 hours of accelerated UV aging testing, with no significant fading under normal use for 5–8 years.

Q4: How do you maintain leather flooring and PVC flooring? Why do these two materials have higher failure rates?

Leather and PVC flooring have high failure rates, not because the materials themselves are inferior, but because the car cabin environment's "temperature swings + UV exposure + sweat contact" trifecta hits exactly at the weakest points of both material types.

Dedicated Leather Flooring Care:

  • **Core Principle**: Moisturize + Protect from Sun + Avoid Sweat. Leather contains natural oils (leather fatliquoring agents); high cabin temperatures (can reach 70℃+ in summer) accelerate oil evaporation, causing leather to crack and dry out
  • **Monthly Maintenance**: Apply a thin coat of leather-specific conditioning cream (containing mink oil, lanolin, and beeswax), let it absorb naturally for 4 hours, then polish with a dry cloth
  • **Quarterly Inspection**: Check leather seams for delamination and examine wear around the second-row slide rails (high-frequency use of electric slide rails accelerates leather fatigue)
  • **Products to Avoid**: "Universal leather conditioners" containing silicone (create false shine but clog leather pores) and alcohol-based "quick-shine" products

Dedicated PVC Flooring Care:

  • **Core Principle**: Avoid high temperatures + avoid heavy object indentations + regular waxing. PVC is a thermoplastic material that begins to soften and deform above 60℃
  • **Summer Focus**: Use a sunshade when parking to avoid direct sunlight on the floor; do not place hot metal items (temperature can reach 80℃+) on the floor
  • **Wax every six months**: PVC-specific liquid wax (not automotive paint wax), forming a surface protective layer to delay aging
  • **Warning Signs**: Whitening, bubbling, or curling edges → Stop using immediately and contact the installer; PVC aging is irreversible

Emergency Stain Treatment (Most Commonly Overlooked Section)

No matter how thorough your daily cleaning routine, accidents are inevitable—kids spilling yogurt, coffee spills, pet vomit, mud footprints from rain or snow. The ability to handle special stains determines whether your floor will "look brand new or be ruined three years from now."

Q5: What should you do if coffee, milk tea, juice, or other colored beverages spill on the floor? Why shouldn't you wipe with tissue paper directly?

Colored beverages (coffee, milk tea, juice, red wine) have pigment particles ranging from 1–10 nanometers. **Wiping with tissue directly will 'press' the pigment into coating micropores**, enlarging the contamination area. Correct emergency procedure:

  • **Step 1 (within 30 seconds)**: Use a dry cloth or tissue for **unidirectional absorption**—press from outside to inside to absorb liquid. Note: 'press' not 'wipe'
  • **Step 2 (within 1 minutes)**: Damp soft cloth with neutral cleaner, wipe unidirectionally from contamination edge toward center
  • **Step 3 (within 5 minutes)**: Blot dry with dry cloth; leather materials require secondary treatment with leather cleaner
  • **Overnight treatment**: If already dried, soak contamination area with neutral cleaner for 2–3 minutes to soften pigment, then scrub unidirectionally with soft-bristled brush

**Material differentiation**:

  • **Aviation aluminium**: Dense coating; no marks if cleaned within 30 minutes
  • **HPL**: Textured surface with indentations; use a soft-bristle brush to focus on texture gaps
  • **Leather**: Most prone to marks—porous structure lets dye spread through pores. Professional leather cleaning service may be required if untreated within 30 minutes (150–300 CNY/session)
  • **PVC**: Most sensitive to colored beverages; micropores absorb dye, potentially causing permanent staining after 24 hours

Q6: How to handle sticky contaminants like gum, wax, or paint on the floor? Why is hard scraping prohibited?

The core principle for sticky contaminants is **"soften first, then remove"—hard scraping is strictly forbidden**. It tears the coating or leather surface, leaving permanent scratches.

Emergency handling by contaminant type:

  • **Gum/Candy**: Ice cold compress for 2–3 min to make sugar brittle → use plastic scraper (no metal spatulas) at 45° angle and gently scrape → remove residue with neutral cleaner
  • **Wax Stains**: Heat with hair dryer or heat gun at 60℃ (do not exceed leather heat resistance of 80℃) to soften wax → cotton cloth absorbs liquid wax → for leather, treat with leather cleaner
  • **Paint/Marker**: Alcohol swabs (not for leather! Aviation aluminium/HPL only) or specialized paint remover (pH neutral, available at hardware stores) → spot apply within 30 sec → immediately wipe with dry cloth
  • **502 Glue/Instant Adhesive**: Don't panic—apply small amount of acetone immediately (not for leather! Aviation aluminium coating tolerates within 5 min), gently scrape with plastic scraper after 30 sec

**Important Note**: Once leather flooring is contaminated with 502 adhesive and left untreated for more than 5 minutes, **local repair is essentially impossible** — the entire piece must be replaced. Keeping a bottle of "leather-specific instant adhesive remover" (50–100 yuan) in the vehicle can prevent the vast majority of such incidents.

FAQ

Q1: How long after MPV floor modification can normal use begin?

Normal use (carrying passengers, driving, no special cleaning) can begin as soon as the installation is complete. However, for "full use," a phased approach is recommended: Week one for commuter passenger service only, avoiding long-distance bumps; week two for regular business transport; week three for normal cleaning (per this guide). Floors installed with keel mounting require a longer adaptation period — it is recommended to wait until week four before placing heavy objects in the vehicle.

Q2: How do I remove footprints and tire marks from aviation aluminium floor? Why does it get worse the more I wipe?

The root cause of marks on aviation aluminium floor is rubber sole friction residue on the coating surface. Start by gently rubbing with an eraser (soft 4B rubber eraser works best), then remove with microfiber cloth + neutral cleaner. **Do not use "folk remedies" like toothpaste, flour, or baking soda**—these abrasives will scratch the coating, causing cumulative damage that makes marks look worse over time.

Q3: Can household solid wood floor wax be used for floor maintenance? Why not?

No. Household solid wood floor wax formulas contain paraffin wax, palm wax, and carnauba wax, developed specifically for wood grain. Automotive-grade floor surfaces use metal coating/HPL/leather/PVC, with completely different surface energy and pore structure from wood. The wax layer creates an oily film that looks shiny but actually accumulates dirt. Automotive-grade floors should use dedicated wax or care products designed for their specific material.

Q4: How often should MPV floors receive deep maintenance? What does it include?

Recommend deep maintenance every six months, including:

  • Full vehicle floor cleaning (aviation aluminium requires focused cleaning of buckle seams, HPL needs deep-texture brushing, leather requires full care cream treatment, PVC needs waxing)
  • Inspect all seams for lifting or adhesive detachment
  • Inspect wear on high-frequency use areas such as slides, door sills, and under the second-row seats
  • Check whether the ventilation grilles in the battery cooling channel area (BEV MPV) are clogged with debris

For business reception vehicles, intervals may be shortened to once per quarter.

Q5: If the customization shop closes down, how do I seek aftersales service for flooring issues?

This is a real risk in the customization industry. Take these three steps before construction:

  • **Keep contact information for the brand's direct-service aftersales** (e.g., Shangshiliya, Mingting, Xinhongbao headquarters), as brands typically offer cross-store aftersales support
  • **Keep the IATF 16949 certification and construction warranty document** — these two documents are the basis for the brand to continue providing aftersales service
  • **Specify 'warranty period + warranty scope + aftersales response time limit' in the construction contract** — a single store's closure does not affect the brand's responsibility

    • If none of the above were retained, contact the original installer or a third-party professional maintenance service; costs are approximately 30%–50% of the initial installation.

    Reference Materials

    • Shangshiliya 2026 Annual Product Maintenance Manual (Public Version)
    • GB 18580-2017 Limits of Formaldehyde Release from Interior Decoration Materials - Wood-based Panels and Products Thereof
    • GB/T 39600-2021 Classification of Formaldehyde Release from Wood-based Panels and Products
    • ISO 4586-2 Test Methods for High-Pressure Decorative Laminates (HPL) Performance
    • China Automobile Dealers Association 2025 After-sales Protection White Paper for the Automotive Modification Industry

    Copyright Notice

    This is an original technical science article published under the CC BY 4.0 license. When sharing, please retain the original author attribution and source link.

    Disclaimer

    The content of this article is compiled based on public standards and industry experience and does not constitute specific construction advice. Floor maintenance varies by brand and vehicle model. Please refer to the product manual and professional after-sales guidance for actual operations.