Process information
| Key Data Set Information | |
| Location | DE |
| Geographical representativeness description | The data set represents the country specific situation in Germany, focusing on the main technologies, the region specific characteristics and / or import statistics. |
| Reference year | 2023 |
| Name |
Base name
; Quantitative product or process properties
Elastomer joint tape, silicone rubber; Silicone rubber
|
| Use advice for data set | The data set represents a cradle to gate inventory. It can be used to characterise the supply chain situation of the respective commodity in a representative manner. Combination with individual unit processes using this commodity enables the generation of user-specific (product) LCAs. |
| Technical purpose of product or process | This product can be used in construction. |
| Classification number | 7.3.05 |
| Classification |
Class name
:
Hierarchy level
|
| General comment on data set | This data set has been modeled according to the European Standard EN 15804+A2 for Sustainable Building. Results are depicted in modules that allow the structured expression of results over the entire life cycle. |
| Uncertainty margins | 20 |
| Description | Product system depicted except for a few missing processes / flows. Technological, temporal and geographic representativeness partly given. |
| Copyright | Yes |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Time representativeness | |
| Data set valid until | 2026 |
| Time representativeness description | Annual average |
| Technological representativeness | |
| Technology description including background system | Elastomer joint strips made of silicone rubber show a polymer content of nearly 100%. The LCA covers the production of an extrusion profile based on silicone rubber with a density of 1.1 mg/m3. The system boundaries are represented by the finished silicone rubber profile in different thickness and width. Transports from the factory to the building site are not considered and must be included according to the system boundaries. Production of silicone rubber: The base component of RTV silicon rubber (RTV-2, Condensation) contains a hydroxyl-end-capped polydimethylsiloxane which contains nonreinforcing fillers, unreactive silicone fluid and pigments, as well as small amounts of water. The cross-linker, the second component, which is sensitive to hydrolysis, contains the cross-linking agent, which is generally an alkoxysilane. For catalysation of the process a Sn-Catalyst is used. The two components are generally used in ratios between 100 : 1 and 10 : 1 (base component to cross-linker). In module C1, a manual dismantling (no loads) is assumed, collecting losses are neglected. The transport in module C2 to the recycling plant takes place with a truck (50km). Module C3 takes into account the grinding and thermal treatment (combustion) of the material. When calculating combustion emissions and credits, the specific calorific value of each material and the material composition are taken into account. In module D credits for the substitution of electricity (German electricity mix) and thermal energy (from natural gas) are given. |
| Flow diagram(s) or picture(s) | |
Modelling and validation
Administrative information
Environmental indicators