Process information
| Key Data Set Information | |
| Location | EU-27 |
| Geographical representativeness description | European Union |
| Reference year | 2024 |
| Name |
|
| Use advice for data set | Bilaminate membranes are versatile solutions suitable for roofing, façade, and wall assemblies. By selecting the appropriate type, they can be easily adapted to a wide range of thermal and moisture management needs. Typical applications include use as underlay membranes, wind barriers, or additional moisture protection layers. |
| Technical purpose of product or process | Bilaminate membranes are versatile solutions suitable for roofing, façade, and wall assemblies. By selecting the appropriate type, they can be easily adapted to a wide range of thermal and moisture management needs. Typical applications include use as underlay membranes, wind barriers, or additional moisture protection layers. |
| Classification |
Class name
:
Hierarchy level
|
| General comment on data set | The owner of this EPD shall be liable for the underlying information and evidence. The programme operator Kiwa-Ecobility Experts shall not be liable with respect to manufacturer data, life cycle assessment data and evidence. |
| Copyright | Yes |
| Owner of data set | |
| Content declaration | |
| Quantitative reference | |
| Reference flow(s) | |
| Biogenic carbon content | |
| Time representativeness | |
| Data set valid until | 2030 |
| Time representativeness description | All process-specific data were collected for the operating year 2024 (January to December). |
| Technological representativeness | |
| Technology description including background system | MASTERPLAST’s bilaminate (two‑layer) products are composed of two distinct layers joined through a controlled thermal bonding process. The base layers are typically made from polymers such as polypropylene (PP) or polyethylene (PE) nonwoven materials, combined with additional functional membranes. These materials are designed for use in sectors including construction, healthcare, hygiene, automotive applications, and industrial filtration. Their functional characteristics include increased mechanical strength, resistance to water penetration, vapor permeability, and resistance to various chemicals. The layered configuration can be adapted for specific technical requirements, such as acting as a vapor barrier or incorporating antibacterial or flame‑retardant properties. This Environmental Product Declaration is a representative EPD for the product group, based on a variant with a basis weight of 50 g/m². The production of bilaminate begins with the manufacturing of fleece, using polypropylene (PP) granules. The granules are melted using extruders and then transformed into fine filaments through a spinning process, which are deposited onto a moving belt, forming a nonwoven, porous fleece structure. During fleece production, various additives – such as UV stabilizers or colorants – can be incorporated to achieve specific material properties. The resulting fleece layer is stabilized using a thermobonding process. Next, the fleece is fed into a film extruder, where a functional layer – typically a polymer film produced by melt-blown technology – is applied. The hot film adheres directly to the surface of the fleece, creating a tight, layered bond. The bilaminate thus produced performs excellently both mechanically and functionally, and can also be subjected to biaxial stretching if required. |
| Flow diagram(s) or picture(s) | |
Modelling and validation
Administrative information
Environmental indicators