Description

BIOPURethane® Spray Foam is a highperformance bio-based Polyurethane insulation foam developed for advanced thermal and acoustic applications in the building envelope. The formulation is based on aromatic isocyanates and renewable polyols obtained from vegetable sources, providing a balanced combination of mechanical strength, thermal efficiency, and sustainability.

Its closed-cell microstructure ensures excellent dimensional stability, very low water absorption, and outstanding insulation capacity. Depending on the targeted application, the foam can be adjusted in density, reactivity, and expansion to fit spray, injection, or sandwich processes. bioPUR offers fast installation, excellent adhesion to most construction substrates, and durability compatible with the service life of high-performance façades (30–40 years).

bioPUR insulation foams are based on aromatic polyurethane chemistry, produced from reactive components (isocyanates and polyols) that fully react during foaming, forming an inert solid material free from volatile monomers. Once cured, the foam is non-toxic, emits very low VOCs, and complies with REACH and RoHS regulations.

Standard handling precautions should be followed when processing the liquid components before foaming: use of gloves, goggles, and adequate ventilation is recommended to avoid exposure to isocyanate vapours. After curing, no specific hazards are expected under normal service conditions.

In case of fire, degradation of aromatic polyurethane may release carbon monoxide (CO), carbon dioxide (CO₂), and nitrogen oxides (NO). bioPUR residues and offcuts can be mechanically recycled or chemically depolymerised into polyols for reuse, supporting circularity and reducing landfill waste.

Additional information

Applications

– Thermal insulation of walls, roofs and floors.
– Filling of cavities and renovation of existing envelopes.
– Acoustic and thermal insulation for industrial buildings.
– Suitable for new construction and refurbishment projects requiring high air tightness and moisture control.

Factsheets

https://bio4eeb-eu-west-3-bucket-1.s3.eu-west-3.amazonaws.com/Factsheets/technical_datasheet_bioPUR_product.pdf

Thickness

10-200mm per application

Density

35-45 kg/m3

Content of biobased material

60-70%

Compression properties

Compression at 10% relative deformation 166 ± 16 kPa

Compressive stress or compressive strength

Elastic modulus 2400 kPa

Water absorption

1.6 ± 0.06 %

Thermal properties

Thermal conductivity 0.029 W/mK (25 ºC),
Thermal conductivity0.041 W/mK (25 ºC)* (check * explanation below)
Thermal resistance 3.74 m2K/W (25 ºC),
Thermal resistance 1.77 m2K/W (25 ºC)*
Specific Heat Capacity 0.422 J/g·K (20 ºC)
Specific Heat Capacity 1.951 J/g·K (20 ºC)*

* Obtained values after accelerated aging tests applying cycles of 5 days at 70ºC and 60% RH, 1 day at 70ºC
dry and 1 day at 70ºC dry for one month

Calorimetric cone test

Self-ignition Temp. 527.75 ºC

Flammability

V0

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