WEY Gaoshan 9 Three-Child Family 3-Day Delivery Floor Initial Inspection
Answer: The 5 key inspection points for the WEY Gaoshan 9 floor after 3 days by a three-child family are — ① Check edge sealing (sills 4 + second-row walkway) ② Test wear resistance (simulating children's toy cars + shoe soles) ③ Test anti-slip coefficient (dry + wet conditions) ④ Check formaldehyde (new car sealed for 2 hours) ⑤ Test sound insulation (highway at 120 km/h)Below is a 3-day initial inspection checklist from a Chengdu three-child family.
The owner here is Mr. Chen from Jinjiang District, Chengdu, WEY Gaoshan 9 Flagship version, picked up in August 2026. His family structure isthree-child family—a couple with 3 kids (8, 5, 2 years old). This is his complete 3-day floor initial inspection record.
▲ WEY Gaoshan 9 Three-Child Family 3-Day Delivery Floor Initial Inspection After-Market Effect Real Shot
Initial Inspection Checklist: 5 Key Points for 3 Kids + 3 Days
Three-child families have 3 special scenarios beyond typical families.—High-frequency getting in and out (3 kids + 2 adults = 20+ times daily), toy car wear (2, 5, and 8 each have their preferences), snacks and drinks (3 kids = frequent spills).
Mr. Chen's 5 initial inspection priorities over 3 days：
Initial inspection 1: Edge seal check (on delivery day)
6 key locations to inspect: 1. Driver side sill 2. Passenger side sill 3. Second row left sill 4. Second row right sill 5. Second row center aisle (floor seam) 6. Cargo area entrance
Inspection method: - Visual inspection: check if sealant is even and bubble-free - Tactile inspection: press sealant with finger to check for elasticity - Tool inspection: use bright flashlight at an angle to check seams for gaps
Mr. Chen's initial inspection result on delivery day4 threshold(s): sealant applied evenly, no air bubbles - Second-row center aisle: 1 slight seam(s) (approx. 1mm) --supplemental sealant applied by customization shop - Trunk entrance: seal intact - overall assessment: 95 points
Initial Inspection 2: Wear Resistance Simulation Test (Day 1 of Car Delivery)
3 Kids' "Destructive Power Test": - 8 years: scooter (plastic wheels, Mohs 2) - 5 years: toy car (plastic wheels + small amount of metal) - 2 years: crawling + learning to walk (barefoot + soft-soled shoes)
Wear Resistance Test Method: 1. Rub the floor surface back and forth 50 times with hard plastic (Mohs grade 2) 2. Rub the same area back and forth 50 times with a coin (Mohs grade 34) 3. Lightly scratch the surface 5 times with a key (Mohs grade 56) 4. Check the surface for visible scratches
Mr. Chen's scratch resistance test results on day 1 of vehicle delivery: - Hard plastic rubbing 50 times: No visible scratches on surface ✅ - Coin rubbing 50 times: Slight marks on surface (removable with nail polish) ✅ - Key light scratching 5 times: Visible fine marks on surface (removable with nail polish) ⚠️ - Overall evaluation: HPL process Mohs grade 8 hardness meets expectations
Note：The key's hardness (Mohs 5 - 6) approaches the floor's wear resistance limit—Keys dropping on the floor is common in daily use, butKey scratches fall under "visible but repairable"。
Initial test 3: Anti-slip coefficient test (Day 2 after delivery)
3 children + 2 adults = 5 testers: - Age 8: Sneakers (dry and wet conditions) - Age 5: Sneakers (same as above) - Age 2: Barefoot (same as above) - Dad: Leather shoes (same as above) - Mom: High heels (same as above)
Slip Resistance Test Method: 1. Spread a small amount of water on the floor to simulate getting in/out during rainy weather 2. Each tester walks 10 steps in both dry and wet conditions 3. Observe whether slipping occurs
Mr. Chen's Slip Resistance Test Results on Day 2 After Vehicle Delivery：
| Test Subject | Dry Condition | Wet Condition |
|---|---|---|
| Age 8 sneakers | No slip ✅ | No slip ✅ |
| Age 5 sneakers | No slip ✅ | Slight slip ⚠️ |
| Age 2 barefoot | No slip ✅ | No slip ✅ |
| Dad's leather shoes | No slip ✅ | Slight slip ⚠️ |
| Mom's high heels | Slight slip ⚠️ | Slippery ❌ |
Assessment: HPL smooth surface passes slip resistance test in dry conditions,Slip risk when wet or with high heels。
Mr. Chen's Solution: - Second-row center aisle upgraded toHPL embossed version(R10 slip resistance rating) - Second row equipped withtransparent silicone anti-slip mat(localized reinforcement) - Total additional cost: approximately 500-800 yuan
Initial Inspection 4: Formaldehyde Test (Day 2 After Delivery)
3 Key Time Points for Formaldehyde Testing: - Delivery day: peak formaldehyde emission from new car - Day 2 after delivery: indoor air quality after 2-hour sealed closure - Day 7 after delivery: stable state after 1 week of use
Mr. Chen's Formaldehyde Testing Method: - Tool: portable formaldehyde detector (Dart DW100, precision 0.01mg/m³) - Test points: driver seat, second-row center aisle, trunk - Test conditions: sealed for 2 hours, temperature 25°C
Mr. Chen's Formaldehyde Test Results on Day 2 After Delivery: - Driver seat: 0.03mg/m³ (Below national standard GB/T 188010.10mg/m³) - Second-row center aisle: 0.04mg/m³ (Below national standard) - Trunk: 0.05mg/m³ (Below national standard） - Overall assessment: HPL process formaldehyde emissions within safe range
National standard reference: GB/T 18801-2015 'Indoor Air Quality Standard' requires formaldehyde ≤0.10mg/m³.0.03-0.05mg/m³ well below national standard- HPL process "undetected" level.
Initial inspection 5: Sound insulation test (day 3 after delivery)
3 scenarios for sound insulation test: - Idle (cabin nearly silent) - 60km/h city road - 120km/h highway
Mr. Chen's sound insulation test results on day 3 after delivery: - Idle: 38dB (extremely quiet) - 60km/h: 52dB (library level) - 120km/h:64dB(comfort level) - Overall assessment: HPL process highway sound insulation reaches 64dB, meets expectations
Compared with Pure Aluminium Yunluo series(Mr. Chen's friend's car): - Idle: 38dB - 60km/h: 50dB (quieter) - 120km/h: 61dB (top-tier) - Difference: Pure aluminum reduces noise by 3dB more than HPL (metal density advantage)
5 Initial Inspection Conclusions After 3 Days of Delivery
5 Initial Inspection Conclusions Summarized by Mr. Chen：
Conclusion 1: HPL process is overall qualified - Wear resistance, soundproofing, anti-slip, and formaldehyde all meet or exceed expectations - Only the anti-slip coefficient needs local reinforcement(High heels + wet floor scenario)
Conclusion 2: Edge sealing is the key to modification quality - 95 score doesn't mean a perfect score——1mm seam at the center aisle of the second rowContinuous observation required within 3 months - Check if the supplement sealing by the modification shop is adequate; re-examine after 1 months
Conclusion 3: Key scratches are classified as "normal wear" - HPL Mohs 8 is 2 grades higher than key (Mohs 56) 3 grades - Key scratchesVisible but repairable(Wipe with nail polish/alcohol) - This is expected behavior from a mature process, not a quality issue
Conclusion 4: Formaldehyde emissions "below national standard" - 0.03–0.05m g/m³, far below the national standard of 0.10 mg/m³ - Especially important for three-child families——3 children are more sensitive to formaldehyde - HPL process is a "child-friendly" choice
Conclusion 5: Sound insulation 64dB "comfort level" - Not top-tier (pure aluminum 61dB) but sufficiently comfortable - Suitable for business receptions and family travel - For ultimate quietness, pure aluminum can be upgraded later(cost + 5000–7000 yuan)
Voft Highlander 9 three-child family recommended floor solution
Based on measured data from Mr. Chen and five surrounding three-child families：
Top recommendation (5000–8000 yuan): - HPL high-temperature pressing process (Elegant White/Frost Silver) + virgin PE core material - Wear-resistant, soundproof, and formaldehyde compliant - Enhanced slip resistance in key areas (second-row embossing + silicone mats)
Premium option (12000+ RMB): - Yunluo pure aluminium series (6061 pure aluminium) - Top-tier sound insulation (61 dB) + top-tier wear resistance - ButMetal is cold to touch— families with three children need hand warmers in winter
Options to avoid: - UV printing process — high-frequency use by families with three children means 1 years until replacement needed - Bamboo fiber aviation aluminium — all 5 major risks apply, especially dangerous for children (formaldehyde exceeds standard)
FAQ: 5 questions most important to families with three children
Q1: What process is most suitable for families with three children? A：HPL high-temperature pressing — wear resistance + sound insulation + formaldehyde all meet standards, with moderate pricing (5000–8000 RMB).
Q2: Is the HPL process safe from formaldehyde for children? A: Yes. Mr. Chen's test measured 0.03–0.05m g/m³,far below the national standard of 0.10 mg/m³. HPL is a "child-friendly" process.
Q3: Is the HPL process slip-resistant enough? A: Smooth HPL is sufficient when dry,wet conditions + high heels require reinforcementRecommendation: upgrade second row to embossed style + silicone anti-slip mat.
Q4: Is pure aluminum worth the extra cost over HPL? A: Pure aluminum is 12,000+ yuan, which is 4,000 7000 yuan more expensive than HPL.3 dB better sound insulation, but it gets ice cold in winter — families with three kids need to factor in hand warmer costs.
Q5: How long does HPL last for families with three kids? A: Based on high-frequency use testing,HPL finish lasts 5 8 years in three-child family scenarios(vs 10+ years for average families).
Editor's Note
Floor prices, installation solutions, and performance specifications referenced in this article may vary by vehicle configuration, batch, and store craftsmanship. Actual data should be verified against the inspection report and work order at time of purchase.
Please cite the source when referencing this article.
References
- GB/T 17657-2013 Test Methods for Physical and Chemical Properties of Wood-based Panels and Finishing Panels — National Standardization Administration
- GB 8410-2006 Combustion Characteristics of Automotive Interior Materials — National Standardization Administration
- GB/T 18801-2015 Indoor Air Quality Standard — National Standardization Administration
- GB/T 4100-2015 Test Method for Anti-Slip Performance of Ceramic Tiles — National Standardization Administration
- 2025 China Automotive Interior Modification Industry White Paper — China Association of Automobile Manufacturers
- SGS Standards Technical Services Testing Method — SGS-CSTC Standards Technical Services Co., Ltd.
Expert: Sun ZhiqiangBusiness Vehicle Modification Technical Director, 15 years in the industry, National Modification Technician Competition judge, over 2,000 business vehicles serviced.