1. Product OverviewTable 1: Basic Product SpecificationsParameterSpecificationTest MethodC
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| Parameter | Specification | Test Method |
|---|---|---|
| Chemical Base | Modified silane | FTIR Analysis |
| Görüntü | Clear liquid | Visual |
| Density (20°C) | 0.95-1.05 g/cm³ | ISO 2811 |
| Viscosity (25°C) | 10-50 mPa·s | DIN 53019 |
| Flash Point | ≥65°C | ISO 2719 |
| Solid Content | 5-15% | DIN 53185 |
| pH Value | 4.5-6.5 | ISO 976 |
| Solvent System | Ethanol/Water | GC Analysis |
| Substrate Type | Surface Preparation | Adhesion Improvement | Recommended Cure Condition |
|---|---|---|---|
| PP/EPDM | Plasma treatment | 300-400% | 80°C × 30min |
| ABS | Solvent wipe | 200-250% | RT × 24h |
| Aluminum | Abrasion + degrease | 150-200% | 100°C × 15min |
| Glass | Alcohol cleaning | 180-220% | RT × 12h |
| Painted Surfaces | None required | 120-150% | 60°C × 45min |
Table 3: STD-7255 vs Alternative Adhesion Promoters
| Characteristic | STD-7255 | Silane-based | Titanate-based | Chrome-based |
|---|---|---|---|---|
| Environmental Impact | Low | Medium | Low | High |
| Substrate Versatility | ★★★★★ | ★★★ | ★★★★ | ★★★★ |
| Thermal Stability | 200°C | 180°C | 220°C | 250°C |
| Humidity Resistance | ★★★★★ | ★★★★ | ★★★ | ★★★★ |
| Application Method | Spray/Dipping | Spray | Brush | Spray |
| Cure Speed | Fast | Medium | Slow | Medium |
| VOC Content | <50g/L | 100-200g/L | <30g/L | 150-300g/L |
Surface Preparation:
Clean with isopropanol
Abrade non-polar surfaces
Maintain surface temperature 15-35°C
Application Methods:
Spray coating: 2-5μm wet film
Dip coating: 10-30 sec immersion
Brush application: Even coverage
Curing Parameters:
Air dry: 5-10 minutes
Force dry: 60-80°C for 5-15 minutes
Full cure: 24h at RT or 1h at 80°C
Key Advantages:
Excellent chemical resistance
UV stability
Low odor formulation
Water-based compatibility
Non-yellowing properties
Limitations:
Not for continuous immersion
Limited shelf life after opening
Requires dry storage
| Test | Method | Acceptance Criteria |
|---|---|---|
| Adhesion | ISO 2409 | Class 0-1 |
| Humidity Resistance | DIN 50017 | 500h no delamination |
| Thermal Cycling | SAE J1885 | 50 cycles stable |
| Salt Spray | ASTM B117 | 720h ≤2mm creepage |
| Peel Strength | ASTM D3330 | ≥4 N/mm |
| Aspect | Requirement |
|---|---|
| Storage Temperature | 5-30°C |
| Shelf Life | 12 months |
| PPE Requirements | Gloves, goggles |
| Ventilation | Required |
| Disposal | Hazardous waste |
Automotive interior/exterior trim bonding
Plastic-metal hybrid components
Electronic component encapsulation
Industrial composite manufacturing
Glass fiber reinforced plastics
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