From SPC to LSPC: A Comprehensive Upgrade in Formula, Process, and Cost

Time:2025-12-23

What Is LSPC (Light SPC)?

LSPC (Light Stone Plastic Composite) is a new type of flooring product. It is developed based on traditional SPC (Stone Plastic Composite) flooring.Through optimized material formulations and improved production processes, it reduces product weight and boosts production efficiency. Meanwhile, it maintains or even enhances finished product performance.

Compared with traditional SPC flooring, LSPC has the following core advantages:

Lighter Weight: Cuts down transportation costs. Makes handling and installation easier.
Lower Production Energy Consumption: Reduces energy use during extrusion and calendering.
Eco-friendly & Energy-efficient: Uses recyclable polymer materials. Lowers overall carbon footprint.
Improved Installation Performance: Lighter weight ensures more stable locking connections. Enables convenient construction
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From SPC to LSPC: A Comprehensive Upgrade in Formula, Process, and Cost

Why Produce LSPC?

Reduce Logistics and Storage CostsTraditional SPC flooring has high density. It weighs 7–8 kg per square meter.With lightweight design, LSPC reduces weight by 15%–25% per square meter. This significantly cuts transportation costs. The advantage is especially obvious in cross-border export markets.
Boost Production EfficiencyTraditional SPC requires high extrusion temperature. Its molding speed is limited.LSPC achieves higher extrusion speed and faster cooling cycles. It relies on material modification and process adjustment.
Meet Market DemandDemand for lightweight, easy-to-install flooring is growing. It comes from the construction, home improvement and commercial sectors.LSPC meets the dual needs of convenient construction and environmental protection. It fits both residential and commercial decoration projects.
Achieve Sustainable DevelopmentIt reduces raw material consumption and optimizes formulations.It adjusts the ratio of stone powder to polymer materials. This enables low-carbon production.

The traditional SPC production process includes these core steps:

Raw Material Preparation
- PVC or PET/PP (polymer)
- Stone powder (CaCO₃)
- Auxiliary materials: stabilizers, plasticizers, UV stabilizers, etc.
Dry Mixing and Granulation
- Mix raw materials evenly according to formulation ratios.
- Make uniform granules or dry powder after high-speed mixing.
Extrusion Molding
- Extrude the mixture at high temperature through molds to form slabs.
- Controlling temperature, pressure and extrusion speed is key. It ensures slab flatness and dimensional stability.
Calendering/Pressing
- Pass slabs through calenders or hot presses to reach the final thickness.
- Add texture or backing layers to the surface if needed.
Cooling and Shaping
- Quickly cool down slabs via cooling rolls or water tanks. Ensure dimensional stability.
Surface Treatment
- Apply UV coating, printing or EB Curing (Electron Beam Curing).
Cutting and Packaging
- Cut into finished sizes. Pack for warehousing or delivery.

Equipment Improvements for LSPC Production

LSPC production process is basically the same as SPC. But to adapt to lightweight materials and optimize production lines, the following improvements are required:

Extruder Upgrading
- Optimize screw structure to improve mixing uniformity and extrusion stability.
- Upgrade temperature control system to adapt to the low melting point of lightweight materials.
Calender or Hot Press Adjustment
- Optimize pressure and temperature curves to ensure uniform slab thickness.
- Extend cooling rolls or water tanks to reduce warping.
Automated Inspection System
- Monitor slab thickness, flatness and density in real time.
- Avoid deformation risks of lightweight materials.
UV/EB Coating Adaptation
- LSPC slabs have lower density. Fine-tune power and speed for surface coating curing
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LSPC Formulation Optimization

Reduced Stone Powder Ratio
- Stone powder accounts for 60–70% in traditional SPC. It can be reduced to 50–60% in LSPC.
- Reduces weight while maintaining rigidity.
Optimized Polymer Materials
- Introduce high-performance polymers, such as PETG, PP and PVC blends.
- Improve molding stability and toughness.
Added Lightweight Fillers
- Use microspheres, expanded particles, etc., to lower density.
- Ensure structural stability.
Adjusted Additives
- Increase anti-deformation and anti-warping stabilizers.
- Optimize thermal stability and wear resistance.

LSPC vs. SPC: Comprehensive Cost Comparison

Item	SPC	LSPC	Comparison Notes
Unit Weight Cost	$6–8/m²	$5–6/m²	Slightly higher raw material cost, but lower overall consumption
Transportation Cost	High	Low	15–25% weight reduction cuts shipping fees
Energy Consumption	High	Medium-Low	Lower production temperature and higher efficiency reduce energy use
Installation Cost	High	Low	Lighter slabs enable faster, easier construction
Performance	High	High	Equal wear resistance and stability

Summary: LSPC has significant advantages in comprehensive costs. It excels especially in cross-border transportation, construction convenience, environmental protection and energy saving. Proper formulation optimization and production improvements ensure no compromise on product performance.

LSPC (Light SPC) is not just a lightweight upgrade of traditional SPC. It is an innovative solution that meets the needs of modern construction, home improvement and sustainable development.With R&D and engineering support from Starsplas, LSPC can be produced efficiently and cost-effectively on existing SPC production lines. At the same time, it maintains excellent physical performance and installation experience.

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Core Stabilizer Advantages

Integrated Multi-functions: All-in-one with processing, toughening & lubrication
Uniform Dispersion: Sea-island structure for stable performance
Cost & Efficiency Boost: Less dosage, higher compatibility
High Filler Adaptability: Ideal for SPC high CaCO₃ loading