|
Still deciding? Get samples of $ !
Order Sample
|
| Customization: | Available |
|---|---|
| CAS NO.: | 5281-04-9 |
| Formula: | C18h12n2o6s.Ca |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Key Features & Advantages | |
Excellent Heat Stability for Vulcanization: | Demonstrates robust thermal resistance suitable for rubber processing, with heat stability ratings typically ranging from 220°C to 260°C depending on the grade and concentration. This ensures color stability during vulcanization and high-temperature forming processes. |
Superior Migration Fastness: | Exhibits outstanding resistance to bleeding and migration within rubber matrices, achieving the highest rating (Grade 5) in standardized tests. This is critical for preventing color transfer in multi-component articles and ensuring long-term color integrity. |
Good Lightfastness: | Offers reliable lightfastness for most rubber applications, typically rated at 6-7 on the Blue Wool Scale in full shades. Performance in tints is satisfactory for indoor and many general-purpose applications. |
Excellent Dispersibility: | Engineered for easy and uniform dispersion within rubber compounds. Pre-dispersed masterbatch forms (e.g., in EPR rubber) offer significantly improved cleanliness, faster incorporation, and superior dispersion quality compared to powder pigments. |
High Color Strength: | Delivers intense, vibrant coloration with excellent tinctorial strength, enabling economical pigment loading. |
Good Chemical Resistance: | Provides good resistance to dilute acids, alkalis, water, and common solvents, ensuring color durability in various service environments. |
Technical Parameters | |||
Product Name | Specification / Description | ||
Chemical Name | Calcium Salt of 3-Hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-2-naphthalenecarboxylic acid | ||
Chemical Composition | C18H12N2O6S·Ca | ||
CAS No. | 5281-04-9 /C.I.15850:1 | ||
Color Index | Pigment Red 57:1 (PR57:1) | ||
Appearance | Bluish-Red Powder | ||
Lightfastness | 4-5 Level | ||
Heat Resistance | 220℃ - 260℃ (depending on application) | ||
Applications | Printing Inks, Plastics, Coatings, Rubber, Paper | ||
Primary Applications in Rubber | |
General Rubber Goods: | Widely used for coloring a variety of molded and extruded rubber products, including seals, gaskets, hoses, belts, and industrial rubber components. |
Cable and Wire Sheathing: | Specifically recommended for cable sheathing applications due to its excellent heat stability and migration resistance, ensuring long-term color performance and electrical insulation integrity. |
Rubber Masterbatches: | Available in pre-dispersed masterbatch forms (e.g., granulated chips or slabs dispersed in EPR or other polymers) for easy dosing, improved dispersion, and reduced risk of contamination compared to powder pigments. These masterbatches can be customized to match the specific polymer type used in the final compound. |
Footwear and Consumer Goods: | Employed in the coloration of rubber soles, sporting goods, toys, and other consumer rubber articles where vibrant color and safety are required. |
Polyurethane (PUR) Elastomers: | Suitable for coloring polyurethane rubber and foam applications, offering good compatibility and color stability. |
Q: Can I get a sample for testing? |
A: Yes, we provide free samples for quality evaluation. You only need to cover the freight cost. |
Q: What is the MOQ? |
A: The standard MOQ is 500 kg, but we are open to discussion for initial cooperation. |
Q: Is it suitable for food contact materials? |
A: Please contact our technical team for specific compliance requirements based on your application. |
){kind=link}