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Guizhou Xingyi Guizhou Baihua City True Stone Paint Project
Guizhou Xingyi Guizhou Baihua City True Stone Paint Project
Guizhou Xingyi Guizhou Baihua City True Stone Paint Project
Project Background
Sand-textured paint, known for its natural stone-like texture, construction efficiency, and eco-friendliness, has become a mainstream choice for building facades. With accelerated urbanization and stricter green building standards in China, the market demand for sand-textured paint continues to grow, projected to exceed 30 billion CNY by 2025. However, the industry faces challenges from homogenized low-end products and high-end technical barriers, necessitating technological innovation and differentiated product development to capture market share.
Technical Specifications
1. Material Composition
(1) Surface Preparation: Concrete grinding (flatness ≤3mm/3m), crack filling with anti-crack mortar, moisture content ≤15%.
(2) Coating System: Alkali-resistant primer (0.1-0.2mm) → Flexible putty (0.8mm) → Sand-textured paint (1.5-2.0mm) → Silicone-acrylic topcoat (0.05-0.1mm), total thickness 2.0-3.0mm.
(3) Eco-Compliance: Meets GB 24408-2023 (VOC ≤150g/L) and JG/T 24-2023, artificial aging resistance ≥1000 hours.
2. Key Performance
(1) Weather Resistance: Operational range -30℃ to 120℃, UV-resistant with ≥10-year lifespan.
(2) Stone-like Aesthetics: Natural or synthetic aggregates ensure color retention ≥15 years, stain resistance ≤Grade 2.
(3) Construction Efficiency: Spraying speed 200-300㎡/day, 50% faster than traditional stone cladding.
Project Benefits
1. Cost Efficiency: Material cost 30-50 RMB/㎡, 60%-70% lower than natural stone with 27.4% ROI.
2. Sustainability: Water-based formula reduces VOC emissions, ≥80% recyclability, compliant with green building certifications.
3. Market Potential: Widely applied in residential, commercial, and public buildings, e.g., a 939,000㎡ project in Quanzhou achieved premium aesthetics.
Implementation Process
| Phase | Scope | Key Controls |
Base treatment | Polishing, repairing, and cleaning | Moisture content ≤ 15%, no hollowing |
| Primer and putty construction | Alkali resistant primer roller coating+flexible putty batch scraping | Flatness error ≤ 2mm/2m |
| Real stone paint spraying | Grid snap line+two coats of spraying (air pressure 0.7-0.8MPa) | Uniform thickness, no color difference |
| Cover and acceptance | Silicon acrylic topcoat roller coating+performance testing | Water resistance ≥ 96 hours without any abnormalities |
Challenges & Solutions
1. Quality Risks: Address adhesion issues (e.g.,Zhonghai Fuhua Li case) via strict surface preparation and joint design.
2. Market Competition: Differentiate with high-end products mimicking fluorocarbon paint texture.
3. Compliance: Adhere to JG/T 24-2023 and GB 24408-2023 with third-party certifications.
project information
Project Name: Guizhou Xingyi Guizhou Baihuacheng True Stone Paint Project
Project content: 1.1 million square meters/real stone paint
Acceptance results: Test results verify the stone-like coating demonstrates weatherability (4000h UV aging without chalking), crack resistance (tensile strength ≥1.5MPa), and adhesion (cross-cut test Grade 1) exceeding GB/T 9779-2015 requirements. The client has issued written acceptance for environmental compliance (TVOC<80g/L), color uniformity (ΔE≤0.8), and stain resistance (≥90% self-cleaning after 5 scrubbing cycles), with particular appreciation for its authentic stone texture and thermal deformation resistance.
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