Phenolic reinforcing resin SR205 enhances rubber hardness tear resistance and wear resistance with granular dust-free formula
Product Details
Improves hardness and tear resistance Phenolic reinforcing resin
,Enhances wear resistance SR205 resin
,Granular and dust-free Rubber reinforcing resin
Phenolic reinforcing resins improve the hardness, tear resistance, and wear resistance of rubber compounds used in tire manufacturing.
SR205 is a high-efficiency reinforcing resin that, when used with a methylene donor, enhances rubber compound properties through thermal vulcanization.
When combined with methylene donors like hexamethylenetetramine (HMT), SR205 significantly improves:
- Hardness of rubber compound
- Tear strength and abrasion resistance
- Tensile strength and modulus
For optimal reinforcement, add 10% HMT relative to SR205 quantity. HMT can be substituted with other methylene donors such as hexamethoxymethylmelamine (HMMM).
SR205 features granular appearance with minimal dust generation, ensuring convenient weighing and handling.
To prevent scorching during mixing:
- Add SR205 reinforcing resin during early mixing stages to utilize its plasticizing effect
- Add methylene donor during later stages along with accelerator and sulfur
- Primary use in tire bead areas
- Shoe soles manufacturing
- Automotive window seals
- Add SR205 during masterbatch mixing stage for optimal dispersion
- Recommended dosage: 5-15 parts per 100 parts by weight of rubber
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | Yellow to brown granules | Visual inspection |
| Softening point | 92-116 ℃ | GB/T4507-2014 |
| Ash content | ≤1.0% | GB/T11409-2008 |
Standard packaging: paper-plastic composite bag or plastic bag, net weight 25KG.
SR205 reinforcing resin is classified as a non-hazardous material according to transportation regulations.
Store in a cool, dry place. Shelf life: 12 months.
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