Coumarone Resin SR90Y
I. Product Characteristics:
Coumarone resin SR90Y is mainly a mixture of ordinary aromatic resins, coumarone-indene resins, etc. This product is made from carefully selected high-quality petroleum cracking fractions and has good compatibility with various rubbers and fillers, improving the tackiness and adhesion of the rubber compound. Adding SR90Y coumarone resin to the rubber compound improves processing performance, maintaining moderate viscosity and softness, preventing rapid hardening and caking, and reducing the difficulty of on-site mixing operations. During rubber mixing, this product can quickly wet inorganic fillers, accelerating the uniform dispersion of various materials. It also improves the calendering and extrusion performance and reduces wear. This product is flammable but non-toxic, does not affect the vulcanization characteristics of the rubber compound, has good scorch safety, and effectively improves the physical properties of vulcanized rubber.
II. Application Areas:
Tires, conveyor belts, and various other rubber products. This product is not suitable for white or transparent rubber products.
III. Instructions for Use:
1. The granular product is suitable for automatic metering and manual mixing. To ensure good dispersion, it is recommended to add it at the beginning of the mixing process.
2. This product is recommended for use in internal mixers, and the mixing temperature should be at least 10°C above its softening point.
3. The recommended dosage in general rubber is 0.5-10.0 phr. Please conduct small-scale tests before use. IV. Technical Specifications:
Product Name: SR90Y Remarks
Composition: Mixture of aromatic resins, coumarone-indene resins, etc.
Appearance/Color: Brownish-yellow flake or granular solid
Softening Point (°C): 96.0～116.0 GB/T 4507
Heating Loss (%): ≤1.0 GB/T 11409 105°C x 2h
Ash Content (%): ≤2.0 GB/T 11409 800°C x 2h
V. Packaging:
25kg/package, packaging material: paper-plastic bag; standard packaging: 1 ton/pallet
VI. Storage:
Store at room temperature (0-35℃) in a cool, dry, and well-ventilated place, avoiding direct sunlight. Storage period: within 1 year from the date of manufacture.
VII. Transportation:
This product is a non-hazardous material and can be transported as general chemicals. Proper use of this product will not cause any harm to operators.