WACKER SilGel® 612 EH A/B
WACKER SilGel® 612 EH A/B is a pourable, addition-curing RTV-2 silicone rubber. WACKER SilGel® 612 EH A/B is a modification of WACKER SilGel® 612 with higher hardness and reactivity.
- two-part, 1 : 1 mixing ratio
- rapid cure
- low hardness (silicone gel)
encapsulation of electronic components
The curing time is highly dependent on temperature, size and heat sink properties
of the component being potted.
All surfaces must be clean and free of contaminants
that will inhibit the cure of WACKER SilGel® 612 EH.
Examples of inhibiting contaminants are sulfur
containing materials, plasticizers, urethanes, amine
containing materials and organometallic compounds –
especially organotin compounds.
If a substrate’s ability to inhibit cure is unknown, a
small-scale test should be run to determine
Only components A and B with the same lot number
may be processed together!
Component B of WACKER SilGel® 612 EH contains
the platinum catalyst, component A the crosslinker.
Even traces of the platinum catalyst may cause gelling
of the component containing the crosslinker.
To eliminate any air introduced during dispensing or
trapped under components or devices a vacuum encapsulation