Material Composition
| Component | Core Materials | Technical Function |
|---|---|---|
| Part A | Ethylene-Vinyl Acetate Copolymer (52±2% solids) | Low-temperature film formation |
| Part B | 42.5 Sulphoaluminate cement + 80-mesh quartz sand | Rapid hardening & crack resistance |
| *Mix ratio: A:B=1:3 (by weight), workable time 60min* |
Performance (ETAG 004 Class III)
| Property | Requirement | Test Data | Standard |
|---|---|---|---|
| Bond strength to EPS | ≥0.10MPa | ≥0.18MPa | JGJ 144-2019 |
| Compressive/flexural ratio | ≤3.0 | ≤2.5 | ISO 679 |
| Water vapor resistance | ≤0.5m | 0.35m | EN 12086 |
| Freeze-thaw (50 cycles) | No failure | Pass | GB/T 50082-2009 |
| Wind load (negative) | ≥-5.0kPa | -7.2kPa | ETAG 004 Annex C |
Application Protocol
Bonding Application
Perimeter & dot method: ≥60% coverage (EPS)
Notch trowel: 8mm depth (XPS requires priming)
Rendering Application
Base coat: 3mm thick embedding alkali-resistant mesh (≥160g/㎡)
Finish coat: Total 5±0.5mm, trowel smooth before final set
Environmental Limits
Ambient temp: 5℃~35℃ (use frost-resistant type below 5℃)
Curing: Mist-spray water for ≥3 days after setting
Restrictions
Not for direct application on PU foam (requires primer)
Cannot tile with water absorption >6% ceramics
