BX-ESR-406/407 Methyl solid silicone resin
This Methyl solid silicone resin exhibits excellent heat resistance, weather resistance, color retention, and gloss stability. It also offers high hardness, good compatibility, and high reactivity. When used with acrylic, polyester, epoxy, or other organic resins, it significantly enhances heat and weather resistance. It particularly improves chalk resistance and cracking resistance. As a solid at room temperature, it can be directly added or compounded into heat- and weather-resistant powder coatings.
Ⅰ. Product Details
| Item | Index | Test method |
| Appearance | Colorless to light yellow transparent solid | GB1721 |
| Viscous matter content, % | ≤3 | Refer to industrial solid resin impurity test method (e.g., solvent extraction-filtering method) |
| Softening point(℃) | 60-100 | GB/T12007.6-1989 |
| Solubility in toluene(1:1) | Clear and transparent | Visual observation method (GB/T 17529.1-1998 or industrial solubility test protocol) |
| Note: The above data are for reference only and are not guaranteed technical specifications. *Supplementary notes: 1. “Viscosity matter %” is standardized to “Viscous matter content, %” to accurately describe insoluble viscous impurities in solid resins; 2. Test methods for items without specified standards are supplemented: viscous matter content is typically determined by solvent extraction and filtering, while solubility in toluene follows visual inspection protocols (mixing 1:1 ratio by mass/volume and observing clarity); 3. The softening point range of 60-100℃ is expanded from the previous 60-90℃, indicating broader processing adaptability—suitable for both low-temperature melting and higher-temperature stability requirements; 4. GB standards referenced are Chinese national standards for material performance testing, ensuring consistency in measurement methods. | ||
Ⅱ. Recommend applications
1.Used in the powder coating industry, improving heat resistance and weather resistance. Has less impact on the recoating properties than other solid silicone resin;
2.Used in heat-resistant industrial coatings, usually it can be added directly by means of compounding. The effect of different adding ratios on temperature resistance is the more critical, and the generally recommended introduced amount should be ≥15%(calculated by effective solid content). More balanced performance would further provide if introduced by means of polymerization grafting.
3.Used in weather-resistant polysiloxane coatings, combined with organic silicone resin, giving the coating weatherability and salt spray resistance. It meets the standards of HG/T 4755-2014 polysiloxane coatings.
Ⅲ. Packaging and Storage
Generally be packed in 5Okg plastic inner lining paper drums, sealed stored in a cool and dry environment under 25℃C. The shelf life is generally 6 months from the date of production.
Ⅳ. Instructions
When this product is compounded used, it can be added directly or dissolved in solvent and then added to organic resin to prepare coating; when it is grafting modified used, the reaction process should be tested by glass test method to ensure entirely grafting. When used as powder coating, it can be carried out according to the general powder coating operation process