IntroductionHydrophilic aliphatic polyisocyanate MT 307/1 is a water-dispersible crosslinking a
Email: info@standard-groups.com
Hydrophilic aliphatic polyisocyanate MT 307/1 is a water-dispersible crosslinking agent specifically designed for aqueous coating systems. This modified polyisocyanate combines excellent weathering stability with enhanced water compatibility, making it particularly suitable for environmentally friendly coating formulations.
| Property | Specification | Test Method |
|---|---|---|
| Penampilan | Clear, pale yellow liquid | Visual inspection |
| NCO content (%) | 12.5±0.5 | ASTM D2572 |
| Viscosity (25°C, mPa·s) | 3000±500 | Brookfield RV |
| Density (20°C, g/cm³) | 1.10±0.02 | ISO 2811 |
| Flash point (°C) | >100 | ISO 2719 |
| Solubility in water | Dispersible | Manual evaluation |
| Resin Type | Compatibility | Pot Life (h, 25°C) | Recommended NCO:OH Ratio |
|---|---|---|---|
| Acrylic polyol dispersion | Excellent | 4-6 | 1.2-1.5:1 |
| Polyester polyol dispersion | Good | 3-5 | 1.3-1.6:1 |
| Polyurethane dispersion | Excellent | 5-7 | 1.1-1.4:1 |
| Alkyd emulsion | Limited | 2-3 | 1.5-1.8:1 |
| Component | Wood Coating (%) | Industrial Coating (%) | Automotive Refinish (%) |
|---|---|---|---|
| Hydroxyl component | 60-70 | 55-65 | 50-60 |
| MT 307/1 | 10-15 | 8-12 | 12-18 |
| Co-solvent | 3-5 | 2-4 | 4-6 |
| Additives | 1-2 | 1-2 | 1-2 |
| Water | 15-25 | 20-30 | 20-25 |
| Property | Test Method | Typical Value |
|---|---|---|
| Pendulum hardness (s) | ISO 1522 | 120-150 |
| Cross-cut adhesion | ISO 2409 | 0-1 |
| Flexibility (conical mandrel) | ASTM D522 | Pass 4mm |
| MEK resistance (double rubs) | ASTM D5402 | >200 |
| Water resistance (240h) | ISO 2812-2 | No change |
| Weather resistance (QUV-B 1000h) | ASTM G154 | ΔE<2.5 |
Excellent water dispersibility without emulsifiers
Low viscosity for easy processing
Superior yellowing resistance
Good mechanical-chemical property balance
Compatible with various aqueous resin systems
Waterborne wood coatings
Eco-friendly industrial finishes
Automotive refinish systems
Plastic coatings
High-performance DIY coatings
Optimal application temperature: 15-30°C
Recommended curing: 30min@80°C or 7d@25°C
Storage stability: 6 months in original container
Requires mechanical stirring for water dispersion
Penafian: Konten di atas hanya untuk referensi dan komunikasi antara orang dalam industri, dan tidak menjamin akurasi atau kelengkapannya. Menurut hukum dan peraturan yang relevan dan peraturan situs web ini, unit atau individu yang membeli barang terkait harus memperoleh kualifikasi dan kondisi kualifikasi yang valid.
Telepon Perusahaan
+86-21-6420 0566
Jam kerja
Senin sampai Jumat
Telepon seluler:
13816217984
Email:
info@qinsun-lab.com
