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Recycled PET foam is a closed-cell thermoplastic structural foam made from recycled polyethylene terephthalate (PET) through a specific foaming technology. TOPOLOGROU has developed a foam board made of recycled PET chips to reduce environmental impact and achieve weight reduction. By using this foaming technology, it has become possible to produce a product that is lighter and harder than wood boards.
Environmental protection and sustainability
- The raw materials come from recycled PET plastics, which can effectively reduce the pollution of plastic waste to the environment.
- The recycled PET foam after use can be recycled and foamed into materials, which is in line with the concept of sustainable development.

Production Process
Recycling of polyester waste
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Pretreatment (cleaning, drying)
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Condensation
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Chemical dissolution
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Mixing
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Extrusion
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First-stage filtration
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Second-stage filtration
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Slicing
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Drying
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Finished product packaging

Performance
Recycled PET foam has almost the same properties as virgin PET foam, including tensile strength, tensile modulus, compression strength, compression modulus, shear strength, shear modulus, etc. in terms of mechanical properties.
Test items | standard | unit | Value | TS80 | TS100 | TS120 | TS150 | TS200 | TS50 |
Density | ISO845 | kg/m³ | Range | 85-95 | 100-110 | 120-130 | 150-160 | 190-210 | 235-260 |
Compression strength | ISO844 | MPa | AVG | 0.85 | 1.20 | 1.80 | 2.40 | 3.90 | 5.20 |
Compression modulus | ISO844 | MPa | AVG | 73 | 100 | 115 | 140 | 200 | 235 |
Tensile strength | ASTM C297 | MPa | AVG | 1.40 | 1.80 | 2.20 | 2.50 | 3.20 | 4.00 |
Tensile modulus | ASTM C297 | MPa | AVG | 90 | 110 | 120 | 160 | 210 | 275 |
Shear Strength | ISO1922-2012 | MPa | AVG | 0.55 | 0.80 | 0.90 | 1.25 | 1.70 | 2.05 |
Shear modulus | ISO1922-2012 | MPa | AVG | 13.5 | 23.0 | 27.0 | 35.0 | 51.0 | 70.0 |
Roller peeling | ASTM D1781 | mm.N/m | AVG | 20 | 20 | 20 | 20 | 20 | 20 |
Application
Recycled PET foam can be cut and bonded easily, and can achieve complex shapes and structures through thermoforming, and has good thermal stability under heating.
Composite panels
Core materials for panels of trucks, RVs, and various box bodies.
Wind power field
Filling materials for blade shells, webs and leading and trailing edges, nacelle covers, and fairings.
Shipbuilding field
Filling materials for fiberglass shell hulls.
Rail transportation
Filling materials for floors, side walls, top plates, bulkheads, doors, etc.
Carvings
Various artistic creations, such as display statues, movie props, etc.
Furniture
Filling materials for bed boards, partitions, cabinets, desktops, etc.



