WACKER SilGel^® 612 EH A/B

curing

The curing time of WACKER SilGel® 627 A/B is highly dependent on temperature, size and heat sink properties of the component being potted.

surface preparation

All surfaces must be clean and free of contaminants
that will inhibit the cure of WACKER SilGel® 627 A/B.
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
compatibility.

mixing

Caution
Only components A and B with the same lot number
may be processed together!

Component B of WACKER SilGel® 627 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
is recommended.

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.