Improve Stability and Performance in Polyester Foam Extrusion
Achieve stable processing, uniform foam structure, and improved performance in PET, rPET, and PLA foams.
Nexam Chemical provides tailored additive solutions that enable reliable production of high-performance foam materials for demanding applications.
Challenges in polyester foam processing
Polyester foam extrusion requires precise control of melt properties to achieve stable processing and uniform foam structure.
When using recycled or bio-based materials, converters often face:
- Low and unstable melt strength
- Difficulty controlling foam structure
- Variability in viscosity during extrusion
- Reduced mechanical properties
- Narrow processing window
These challenges limit both material selection and product performance.
Stable foam extrusion with Reactive Recycling™
NEXAMITE® additives modify polymer structure during extrusion, improving melt strength and stabilizing the foaming process.
This supports stable foam expansion, uniform structure, and consistent processing conditions in both virgin and recycled polyester foams.
- Stabilizes the foaming process for more reliable production
- Supports uniform foam structure and consistent quality
- Enables use of recycled and bio-based polyester feedstocks
Improved structure and process control
Nexam Chemical’s solutions for polyester foam extrusion help converters achieve the processing stability and foam consistency needed for demanding applications.
- Increased melt strength for stable foaming
- Improved control of foam cell structure
- More stable viscosity during extrusion
- Enhanced mechanical performance
- Wider processing window
NEXAMITE® M021200 & M023500
Chain extender formulations for PET and rPET foam extrusion
These chain extender solutions support stable processing conditions and help create a more uniform foam structure in PET and rPET foam board and sheet extrusion.
Key benefits
- Efficient IV increase for improved melt strength
- Stable foaming process and uniform foam structure
- Suitable for foam board and sheet extrusion
- Enables use of recycled PET
NEXAMITE® M022008 / M992008
Chain extension solutions for PLA/PBAT and recycled grades
Chain extending formulations tailored for extrusion of both virgin and recycled PLA and PBAT foams, supporting stable processing and uniform foam structure.
Key benefits
- Stable processing in bio-based foam extrusion
- Improved melt strength and foam stability
- Consistent foam structure in both virgin and recycled materials
Enhance flexibility and toughness
For applications requiring improved toughness and flexibility, Nexam offers solutions that can be used as part of a tailored foam recipe, including high recycled content systems.
NEXAMITE® M992000
Chain extender / acid scavenger / stabilizer for PET, rPET, PBT
- Process stabilizer for high recycled content recipes
- Improves flexibility and toughness when used in combination with NEXAMITE® M02 solutions
- Provides higher tensile strength and elongation to break
NEXAMITE® M562000
Chain branching agent for PET and PBT
- Improves flexibility when used in combination with NEXAMITE® M02 solutions and NEXAMITE® M992000
- Higher tensile strength and elongation to break
- Improves impact strength
Stable viscosity and process control
Maintaining stable melt viscosity during foam extrusion is critical to consistent foam structure and production stability.
Nexam Chemical also offers solutions designed to support process stability during extrusion.
NEXAMITE® PTMZ (development grade)
Reactive masterbatch for PET and rPET
- Provides stabilization and limits deterioration of melt viscosity during extrusion
- Increases die pressure and melt strength
Application examples
Polyester foams are used in demanding applications where consistent foam structure and stable mechanical performance are required.
- Wind turbine blade core materials (PET-based foams)
- Insulation panels and construction materials
- Lightweight structural components
- Industrial and transport applications
Product summary table
| Product | Description | Features / Benefits |
|---|---|---|
| NEXAMITE® M021200 | Chain extender formulation for PET and rPET | Chain extender for PET foam board and sheet extrusion. Provides stable processing conditions and uniform foam structure. |
| NEXAMITE® M023500 | Chain extender formulation for PET and rPET | Highly effective chain extending formulation for PET foam extrusion. Provides excellent IV increase yielding stable processing and uniform foam structure. |
| NEXAMITE® M022008 / M992008 | Chain extender formulation for PLA/PBAT and recycled grades | Tailored for virgin and recycled PLA/PBAT foam extrusion. Supports stable processing and uniform foam structure. |
| NEXAMITE® M992000 | Chain extender / acid scavenger / stabilizer | Process stabilizer for high recycled content recipes. Improves flexibility, toughness, tensile strength, and elongation. |
| NEXAMITE® M562000 | Chain branching agent for PET and PBT | Improves flexibility, impact strength, tensile strength, and elongation in polyester foams. |
| NEXAMITE® PTMZ | Reactive masterbatch for PET and rPET | Stabilizes melt viscosity during extrusion and increases die pressure and melt strength. |
Enable stable polyester foam production
From recycled PET to bio-based polymers, Nexam Chemical helps you achieve stable foam processing and consistent product performance.
Discuss your application
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