english How to test and judge the fireproof performance of color steel plate protective film
2025-06-26
Fireproof Performance Evaluation of Color Steel Plate Protective Films
To judge the fireproof performance of color steel plate protective film, we can start from five aspects: certification, material, test, data and case:
1. Check Certification Qualifications
- Confirm whether the product meets the GB 8624 "Classification of Combustion Performance of Building Materials and Products" standard
- Focus on checking certification from China Fire Products Conformity Assessment Center and SGS fireproof test reports
- EU EN 13501-1 certification or US ASTM E84 test reports can indirectly prove compliance
2. Analyze Material Composition
- Inorganic materials (ceramic fireproof coatings, glass fiber composites) are naturally flame retardant
- Organic materials with halogen-free flame retardants (oxygen index ≥30%) show good performance
- Verify environmental compliance of all flame retardant additives
3. Carry Out Combustion Test
Take a 5cm×15cm sample and use an alcohol torch to simulate fire source. Qualified protective film should:
- Self-extinguish within 5 seconds
- Produce no dripping of molten material
- Maintain smoke density rating (SDR) below 75
| Technical Parameter | Standard | Performance Requirement |
|---|---|---|
| Limiting Oxygen Index (LOI) | ASTM D2863 | ≥30% for good flame retardancy |
| Vertical Burning Rating | UL 94 | V-0 (extinguishes within 10 seconds) |
| Smoke Density Rating | ASTM E662 | <75 for excellent performance |
5. Reference Application Cases
- Review performance in data centers and hospital cleanrooms
- Verify non-spread of fire in similar projects
- Request project references from suppliers
Key Conclusion: A comprehensive evaluation combining certification verification, material analysis, practical testing, technical data review, and case studies provides the most reliable assessment of a protective film's fireproof performance.
