Optical Brightener (OB) for Brighter White & Clear Plastics
SPHERE Optical Brightener (OB) reduces the yellow tint and gives a brighter, cleaner white. Available in two loadings (10% and 15%) depending on the yellowing level and application.
Technical overview
- Category
- Optical brightening
- Family
- Performance Additives
- Available grades
- 10% loading · 15% loading
- Applications
- Blown Film · Injection Molding · Extrusion · Sheets and Thermoforming
- How to obtain
- A sample tested on your line before ordering
The problem it addresses
Is your white or clear product leaning yellow or looking dull?
Practical benefits
- Reduces the yellow tint in white and clear products
- Helps achieve a brighter, cleaner white
- Available in 10% and 15% loadings by problem severity
- Works well alongside white masterbatch for a better result
When could you need this product?
- When white leans yellow after processing
- When recycled material gives a dull tone
Related production problems
Related products
Frequently asked questions
What is the difference between Optical Brightener and White Masterbatch?
Optical Brightener improves visual brightness and helps reduce yellowish tones, but it does not provide the same white color coverage as White Masterbatch. White Masterbatch is used when actual white pigmentation and opacity are required. The right choice depends on the raw material, required coverage, and final application.
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