The Grams That Guard Your Roof
Coating Weight vs. Protection:
Industry Standards Comparison:
| Estándar | Minimum Weight | Typical Protection |
|---|---|---|
| ASTM A792 | 50g/m² | 3-7 years |
| EN 10346 | 100g/m² | 8-12 years |
| SKW AZ150 | 150g/m² | 20+ years |
Metallurgical Science: The 150g/m² Advantage
Coating Structure Analysis:
Protection Mechanism:
Salt Spray Testing: Weight vs. Performance
ASTM B117 Results:
Real-World Correlation:
| Peso | Horas de niebla salina | Equivalent Years* |
|---|---|---|
| 50g/m² | 1,200 | 5.2 |
| 100g/m² | 2,500 | 10.8 |
| 150g/m² | 10,000+ | 25+ |
| 200g/m² | 11,000 | 27.5 |
| *Based on ISO 9227 coastal atmosphere |
Weight Distribution Technology
SKW’s HD Coating System:
- Electrostatic Application: ±3g/m² tolerance
- Edge Enrichment: 15% extra weight on cut edges
- Micro-Weighing: Laser-controlled deposition
Global Environment Validation
Case Study: Singapore High-Rise:
- Humidity: 85% RH average
- Salt exposure: Marine atmosphere
- Result at 10 years:
- 100g/m² coating: 12% rust
- SKW 150g/m²: 0.3% surface staining
Economic Optimization Analysis
Cost vs. Protection Balance:
Lifecycle Value Calculation:
| Peso | Prima de coste | Added Years | ROI |
|---|---|---|---|
| 100g → 150g | +$0.33/m² | +9.5 years | 287% |
| 150g → 200g | +$0.65/m² | +2.5 years | 38% |
Especificaciones técnicas
Coating Composition Profile:
| Element | Weight % | Función |
|---|---|---|
| Aluminio | 55% | Barrier protection |
| Zinc | 43.4% | Sacrificial anode |
| Silicon | 1.6% | Adhesion promoter |
Performance Certifications:
- ISO 1461: 150g/m² Class
- ASTM A755/A755M Grade 150
- EN 10346 DX150D
Installation Impact Protection
Edge Treatment Technology:
Critical Zones Protection:
| Vulnerability Area | Solución SKW |
|---|---|
| Cut Edges | 200μm zinc-rich coating |
| Fastener Holes | EPDM sealing washers |
| Overlaps | Butyl tape sealant |
Warranty by Coating Weight
Performance Guarantee:
Umbral de solicitud:
- Cut edge rust: >5% surface area
- Panel perforation: Any occurrence
Certifications: ISO 1461 • ASTM A755 • EN 10346 • JIS G3321
Performance Warranty: 25-Year Corrosion • 10-Year Cut Edge Protection
SKW‘s precision-engineered 150g/m² aluminum-zinc coating delivers the corrosion protection sweet spot: Laboratory data confirms 10,000+ hour salt spray resistance – 4x better than standard 100g coatings – while field studies show less than 0.5% rust after 15 years in coastal environments. Our HD coating system ensures uniform weight distribution with ±3g/m² tolerance, featuring zinc-enriched edge protection and silicon-enhanced adhesion. With 25-year perforation warranty and independently verified performance metrics, we provide scientifically optimized protection against rust.