3.5mm Waterproof Vinyl Flooring SPC Manufacture
Engineering Workflow and Key Equipment
Raw Material Mixing: PVC resin, CaCO₃, stabilizers, and plasticizers are mixed in a high-speed mixer at 120–125°C.
Extrusion: Rigid SPC core sheet formed using a conical twin-screw extruder operating at 160–190°C.
Lamination: Wear layer, decor film, and core fused using hot-press lamination (pressing temperature 85–95°C).
Cooling and Calibration: Sheet thickness calibrated within ±0.02 mm tolerance.
CNC Profiling: Click-lock system (Valinge/I4F-style geometry) milled to precision.
UV Coating: Multi-layer UV protection cured with LED UV lines.
Cutting and Inspection: Optical inspection for flatness, color consistency, and locking accuracy.
Packing: Carton and pallet packing suitable for export requirements.
Definition of 3.5mm Waterproof Vinyl Flooring SPC Manufacture
3.5mm Waterproof Vinyl Flooring SPC Manufacture refers to the industrial process of producing thin-profile, rigid-core SPC flooring with superior dimensional stability, waterproof performance, dent resistance, and cost efficiency. This flooring is engineered for residential, commercial, and light industrial applications where durability and installation speed are critical.
Technical Parameters and Specifications
Total Thickness: 3.5 mm ± 0.2 mm
Wear Layer: 0.2–0.3 mm PVC wear layer
Decor Film: High-resolution printed vinyl film
Core Material: Stone-plastic composite (calcium carbonate + PVC)
Density: 1,850–2,050 kg/m³
Water Absorption: ≤ 0.05%
Dimensional Stability: ≤ 0.06% (EN ISO 23999)
Peel Strength: ≥ 1.0 kN/m
Surface Treatment: UV coating, anti-scratch layer
Fire Rating: Bfl-s1 (EN 13501-1)
VOC Emission: FloorScore / CE compliant
Plank Size: 910 × 150 mm, 1220 × 180 mm, customizable
Structure and Material Composition
1. UV Coating Layer: Provides abrasion resistance and easy cleaning.
2. Wear Layer: Transparent PVC protective film for durability (0.2–0.3 mm).
3. Decor Film: High-resolution print simulating wood, stone, or textile textures.
4. SPC Core: Rigid composite of PVC resin and calcium carbonate, offering waterproof and anti-deformation performance.
5. Backing Layer: Stabilizing PVC backing for improved bonding and impact resistance.
Manufacturing Process for 3.5mm Waterproof Vinyl Flooring SPC
Engineering Workflow and Key Equipment
Raw Material Mixing: PVC resin, CaCO₃, stabilizers, and plasticizers are mixed in a high-speed mixer at 120–125°C.
Extrusion: Rigid SPC core sheet formed using a conical twin-screw extruder operating at 160–190°C.
Lamination: Wear layer, decor film, and core fused using hot-press lamination (pressing temperature 85–95°C).
Cooling and Calibration: Sheet thickness calibrated within ±0.02 mm tolerance.
CNC Profiling: Click-lock system (Valinge/I4F-style geometry) milled to precision.
UV Coating: Multi-layer UV protection cured with LED UV lines.
Cutting and Inspection: Optical inspection for flatness, color consistency, and locking accuracy.
Packing: Carton and pallet packing suitable for export requirements.
Industry Comparison
| Material | 3.5mm SPC Vinyl Flooring | Laminate Flooring | WPC Flooring |
|---|---|---|---|
| Waterproof Performance | 100% waterproof | Poor | Excellent |
| Core Density | High (1,850–2,050 kg/m³) | Medium | Low |
| Heat Stability | Strong | Weak under moisture | Moderate |
| Cost Efficiency | Very high | High | Medium |
| Best Application | Residential & light commercial | Budget projects | Premium residential |
Application Scenarios
EPC Contractors: Hotels, apartments, retail stores with fast installation timelines.
Developers: Large-scale housing projects requiring uniform design and cost efficiency.
Importers/Wholesalers: General distribution in competitive flooring markets.
Commercial Fit-out: Office renovations with noise reduction requirements.
Retailers: DIY-focused outlets due to easy click-lock installation.
Core Pain Points and Engineering Solutions
Subfloor Unevenness: Utilize higher-density SPC core and advanced click-lock tolerance to minimize telegraphing.
Surface Scratches: UV anti-scratch coating with micro-resin reinforcement.
Color Variation: Use automated film feeding and ICC-based color correction.
Locking Breakage: CNC milling with 0.02 mm tolerance prevents click failure.
Installation Speed: 3.5 mm SPC offers lightweight handling and increased installation efficiency.
Risk Warnings and Mitigation Advice
Temperature Extremes: Avoid exposure above 60°C during transport.
Direct Sunlight: Prolonged UV exposure may cause slight color drift.
Improper Subfloor Moisture: Ensure moisture content ≤ 2.5% for cement bases.
Incorrect Storage: Store flat, avoid leaning to prevent warping.
Procurement and Selection Guide
Define usage level: residential, retail, or commercial application.
Confirm wear layer thickness (0.2–0.3 mm for 3.5 mm SPC).
Check density and CaCO₃ ratio to ensure rigidity and stability.
Verify decor film quality and printing resolution.
Inspect click-lock profiling accuracy.
Request third-party test reports (VOC, stability, fire, abrasion).
Assess packaging durability for long-distance transport.
Review surface treatment technologies (UV, embossing, matte).
Engineering Case Example
A 9,500 m² residential renovation project adopted 3.5mm Waterproof Vinyl Flooring SPC due to rapid installation requirements and moisture-prone ground conditions. The high-density SPC core eliminated subfloor telegraphing, while the 0.3 mm wear layer ensured adequate traffic resistance for shared corridors and common areas.
FAQ
Is 3.5mm SPC flooring waterproof? Yes, the rigid core is fully waterproof.
Can it be installed in kitchens? Yes, with full sealing at edges.
What wear layer is recommended? 0.2–0.3 mm for residential/light commercial.
Does it support underfloor heating? Yes, below 27°C.
What is the density? 1,850–2,050 kg/m³.
Is glue required? No, click-lock installation is standard.
What is the expected lifespan? 12–20 years depending on usage.
Does it fade? Slightly under heavy UV exposure.
How is the locking quality ensured? CNC milling accuracy controls it.
Is acclimation required? Yes, 24–48 hours before installation.
Request Quotation / Technical Files / Engineering Samples
To obtain project-based quotations, technical data sheets, installation guidelines, or engineering samples for 3.5mm Waterproof Vinyl Flooring SPC Manufacture, please contact our technical sales team for customized support.
E-E-A-T Author Credentials
Written by a flooring manufacturing engineer with 10+ years of industrial experience in SPC extrusion technology, polymer material science, and multi-layer flooring engineering for large-scale B2B projects.
| Application |
Application :Family living: living room, kitchen, bedroom, children's room, cloakroom, balcony; Commercial space: supermarket, hotel, gym, playground, school, bookstore, etc.








