Brighter.
Whiter.
Unmistakable.
High-performance Optical Brightener Masterbatch, engineered to mask the inherent yellowness of plastics and bring every surface to life.
A single additive that transforms dull, yellow plastics into surfaces that feel cleaner, whiter and more premium — instantly.
The yellow problem in plastic.
Virgin polymers, recycled PCR and reprocessed material naturally carry a yellow-brown tint — hurting perceived quality, shelf appeal and brand value.
Optical Brightener absorbs invisible UV light and re-emits it as visible blue — neutralising yellow and making plastics look whiter-than-white.
Physics, not pigment.
Optical brightening agents absorb light in the ultraviolet and violet range (300–400 nm) and re-emit it as fluorescent blue light in the 420–500 nm band. This blue output cancels out the yellow undertone of the substrate — giving a pleasing, whiter-than-white appearance without bleaching or pigments.
Engineered for PE, PP and PCR.
Plast OB permits recycled PCR plastics to present a more consumer-pleasing colour balance. It counters the yellowish-brown “dirty” effect typical in post-consumer recycled polymers, letting brands load more recycled content without compromising clarity — improving environmental ranking and shelf impact at once.
From raw compound to finished masterbatch.
Four precision steps. One brighter outcome.
High-grade optical brightening agents are sourced and blended with carefully chosen carrier resins — PE, PP or polymer-specific bases — to ensure compatibility with your end process.
Twin-screw compounders disperse the OB uniformly into the carrier at controlled shear and temperature — preventing hotspots, protecting the active and ensuring consistent fluorescence.
The molten strand is quenched, cut into uniform pellets and dried — producing a clean, free-flowing masterbatch that feeds smoothly into any hopper.
Every batch is tested for whiteness index, dispersion, MFI and heat stability in Bajaj's ISO 9001:2015 certified lab — then packed for global despatch.
Built to perform.
Designed to impress.
Neutralises the natural yellow undertone of virgin and reprocessed polymers for clean, bright results.
Adds a premium, fresh finish to plastic products — elevating perceived quality on any shelf.
Stable at high processing temperatures with low volatility.
Retains brightness and colour fidelity under prolonged light exposure.
Works alone or alongside heat, light and process stabilisers — fully customisable to your recipe.
Numbers that speak for themselves.
Three decades of trust, engineered into every pellet.
Bajaj Polyblends has been producing masterbatches since our beginnings in Nagpur, Maharashtra — delivering stringent, consistent quality to customers across India and the world.
Certified by TÜV Nord — every batch is manufactured under a globally recognised quality management system.
In-house R&D formulates brighteners tuned to your polymer, process temperature and loading percentage.
Manufacturing backed by Gwalior, Chennai and export desks — delivering reliably wherever you produce.
Consistency you can count on, reducing rejections and lifting the premium feel of every product you ship.
From colour and TiO₂ white to additive and filler masterbatches — one partner for every compound need.
Fits every conversion line you run.
Plast OB is designed to integrate with every major plastic processing method — with formulations tuned to each.

High efficiency with dimensional uniformity — even on complex parts.

A cost-effective way to produce bright, intricate hollow shapes.

Uniform fluorescence across large rotationally moulded parts.

Cost optimisation and property enhancement for tapes and sacks.

Suited to mono & multilayer flexible packaging films.

Bright, consistent output for cast extrusion lines.

Uniform brightness with scalable, customisable output.

Enhanced whiteness on high-performance bulk bag fabric.

HDPE tanks with limitless design and a striking bright finish.
A little brightener.
An enormous difference.
Everywhere plastic meets the eye.
From luggage to tanks to textile yarn — Plast OB lifts the finish of end-products across every sector.
The difference between "just plastic" and a product customers choose.
In crowded aisles, perceived quality wins. A dull, yellowish product signals "old" and "cheap" — even when the resin is identical. A bright, clean product signals "new" and "premium".
Plast OB unlocks more than aesthetics. It lets brands confidently load higher percentages of recycled PCR content — meeting sustainability targets while maintaining the clarity and appeal consumers expect.
Bright plastics aren't a finishing touch. They're a commercial advantage.
See your plastic
in a whole new light.
Whiter whites. Cleaner tones. Higher shelf impact. Every pellet, engineered by Bajaj.