ELASTOSIL® RT 622 A/B Silicone Rubber (RTV-2)

Room Temperature Curing Silicone Rubber (RTV-2)
 Pourable, addition-curing, two-component silicone rubber that vulcanizes at room temperature.

Properties
• excellent mechanical properties
• low hardness
• meets the requirements of EN 45545-2:2020 for Hazard Level HL1 (requirement set R22), and for Hazard Level HL1
and HL2 (requirement set R23 and R24), respectively.

Specific features
• Addition Curing
• Flowable
• Two-component

Technical data
General Characteristics

Applications
• Electrics & Electronics
• Encapsulation
• Hydroelectric Power Plants
• Railway Industry

Application details
Important note: The platinum catalyst is in component B.
Important: A and B components may only be used together if they have the same batch number.
We recommend running preliminary tests to optimize conditions for the particular application.
Comprehensive instructions are given in our leaflet “ELASTOSIL® – PROCESSING RTV-2 SILICONE RUBBERS”.

– all-round potting compound
– technical mouldings 
– encapsulation of electronic components
– slot exit potting for electrical coils

Packaging and storage
Storage
The ‘Best use before end’ date of each batch is shown on the product label. Storage beyond the date specified on the
label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the
intended use must be checked for quality assurance reasons.

Safety notes
Components of the addition-curing grade ELASTOSIL® RT 622 A/B contain only constituents that over many years have
proved to be neither toxic nor aggressive. Special handling precautions are therefore not required, i.e., only the general
industrial hygiene regulations apply. Comprehensive instructions are given in the corresponding Material Safety Data
Sheets. They are available on request from WACKER subsidiaries or may be printed via WACKER web site http://www.
wacker.com