Ultramarine Blue is a high-performance inorganic pigment widely used in rubber products requiring stable color, excellent heat resistance, and long-term durability.
In rubber processing, color consistency and dispersion stability are critical. Our Ultramarine Blue is specially engineered to ensure uniform dispersion in NR, SBR, EPDM, and recycled rubber systems, without affecting mechanical properties.
Why Ultramarine Blue is Ideal for the Rubber Industry
Ultramarine Blue offers a unique combination of performance advantages that make it suitable for rubber compounding:
- Excellent heat stability (up to 350°C in processing conditions)
- Good weather resistance and UV stability
- Non-migrating and non-bleeding properties
- Environmentally friendly inorganic pigment
- Strong tinting strength with low dosage requirement
These features make it particularly suitable for both industrial rubber products and consumer rubber goods.
Applications in Rubber Industry
Ultramarine Blue is widely used across different rubber product categories:
✔ Industrial Rubber
- Conveyor belts
- Rubber gaskets
- Vibration pads
- Seals & O-rings
✔ Consumer Rubber Products
- Rubber footwear soles
- Sports equipment
- Rubber toys
- Colored rubber bands
✔ Specialty Rubber Compounds
- Recycled rubber coloring
- EPDM roofing membranes
- Automotive rubber parts
Technical Performance Overview
| Property | Performance |
|---|---|
| Color Index | Pigment Blue 29 |
| Heat Resistance | Up to 350°C |
| Light Fastness | 7–8 (Excellent) |
| Migration | None |
| Dispersion | Excellent in rubber matrix |
| Oil Absorption | Medium |
This ensures stable performance during high-temperature mixing, extrusion, and vulcanization processes.
Comparison with Other Blue Pigments
| Type | Ultramarine Blue | Phthalocyanine Blue |
|---|---|---|
| Cost | Medium | Higher |
| Heat Resistance | Excellent | Good |
| Environmental Profile | Eco-friendly | Moderate |
| Shade | Soft reddish blue | Strong greenish blue |
Ultramarine Blue is preferred when a softer, cleaner blue tone and cost efficiency are required.
Quality Control & Production Stability
Our Ultramarine Blue is manufactured under strict quality control to ensure:
- Consistent particle size distribution
- Stable color strength batch-to-batch
- Low heavy metal content
- Compatibility with rubber compounding systems
Each batch is tested before shipment to ensure industrial reliability.
Packaging & Supply Options
We offer flexible packaging options:
- 25kg PP bags
- 500kg–1000kg jumbo bags
- Customized OEM packaging available
Suitable for both small batch trials and bulk industrial supply.
Frequently Asked Questions
Q1: Is Ultramarine Blue suitable for high-temperature rubber processing?
Yes, it can withstand up to 350°C without significant color change.
Q2: Does it affect rubber mechanical properties?
No, it has no negative impact on tensile strength or elasticity.
Q3: Can it be used in recycled rubber?
Yes, it disperses well in recycled rubber compounds.
Get in Touch for Samples & Technical Support
Looking for stable and cost-effective blue pigment for rubber applications?
We provide:
- Free sample evaluation
- Technical data support
- Custom formulation assistance
📩 Contact us today to discuss your rubber coloring requirements.