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Reduce unwanted odors. Improve recycled plastic quality. Expand potential applications.

Polymatica ReFresh™ O is an odor control masterbatch for recycled plastics, developed to help reduce unwanted odors originating from recycled feedstock, contaminants, degradation products and processing.

Designed primarily for recycled PP and PE, ReFresh™ O can help recyclers, compounders and plastic manufacturers improve the odor profile of recycled materials and produce higher-value compounds and finished products.

Recycled PP | Recycled PE | Polyolefin Compounds

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Why Do Recycled Plastics Develop Odor?

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Unwanted odor is one of the major challenges when increasing the use of recycled plastics.

Odors can originate from several sources, including:

• Residual organic contaminants

• Food and packaging residues

• Oxidation and thermal degradation products

• Volatile organic compounds generated during processing

• Contamination from mixed post-consumer waste streams

• Repeated thermal processing of recycled polymers

These odors can limit the use of recycled polymers in applications where appearance, cleanliness and sensory quality are important.

ReFresh™ O is designed to provide an additional odor-control tool within the recycling and compounding process.

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ReFresh™ O Odor Control Masterbatch

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ReFresh™ O is a concentrated odor-control additive masterbatch designed for incorporation into recycled polymer formulations.

Rather than changing the entire formulation, processors can introduce an odor-control solution directly during compounding or conversion.

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Key Benefits

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• Helps reduce unwanted odors in recycled plastics

• Designed for recycled PP and PE

• Easy masterbatch format for polymer processing

• Can be incorporated during compounding or conversion

• Suitable for recycled-content formulations

• Can be adapted to different recycling streams

• Supports development of higher-value recycled compounds

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Recommended Applications

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ReFresh™ O can be considered for recycled-polymer applications such as:

Plastic Recycling

Improve the odor profile of mechanically recycled PP and PE streams.

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Non-Food Packaging

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Support recycled-content packaging applications where residual odor can limit material acceptance.

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Automotive Components

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Improve recycled polyolefin compounds used in non-critical interior and exterior applications.

Consumer & Household Products

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Reduce unwanted odor in recycled-plastic formulations used for household and consumer products.

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Polymer Compounding

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Integrate odor control directly into customized recycled PP and PE compounds.

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Designed for Recycled PP & PE

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ReFresh™ O is primarily intended for:

Recycled Polypropylene (rPP)
Recycled Polyethylene (rPE)
Polyolefin-based recycled compounds

Performance can depend on the origin of the odor, contamination level, polymer type, processing conditions and additive concentration.

For this reason, Polymatica can help evaluate the application and recommend an appropriate formulation strategy.

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More Than Odor Masking

Our approach to odor control focuses on the polymer formulation and the source of the odor, rather than simply adding fragrance to mask it.

Different recycled streams can contain very different volatile compounds and contaminants.

For difficult materials, Polymatica can evaluate factors such as:

• Polymer type

• Recycling history

• Source of the recycled feedstock

• Processing temperature

• Contamination level

• Existing additive package

• Required final application

Based on the application, we can recommend an existing solution or develop a customized odor-control masterbatch.

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ReFresh™ Product Family

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ReFresh™ O

Odor Control Masterbatch

Designed for odor reduction in recycled PP, PE and polyolefin compounds.

ReFresh™ OC

Concentrated Odor Control Masterbatch

A concentrated solution for applications requiring greater formulation flexibility.

ReFresh™ Duo

Odor Control + Antioxidant Masterbatch

Combines odor-control functionality with stabilization support for recycled polymer formulations.

Custom Odor-Control Solutions

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Every Recycled Plastic Stream Is Different

The odor generated by post-consumer recycled plastic can vary considerably depending on feedstock, washing efficiency, degradation history and processing conditions.

That's why Polymatica also offers custom polymer formulation and R&D support.

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Tell us:

1. What polymer are you processing?

2. What is the source of the recycled material?

3. What odor problem are you experiencing?

4. What is the final application?

Our polymer team can help identify an appropriate additive and formulation strategy.

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