发表于: 2019-5-3 21:12:17 | 只看该作者 |只看大图 |倒序浏览

SEMICOSIL? 927 F FLUORO SILICONE GEL
Product description
SEMICOSIL? 927 F is a pourable, thermally curable, addition-curing, one-part fluoro silicone rubber that cures to a soft silicone gel.
Special features
- one-part, ready-to-use
- thixotropic behavior
- rapid heat cure
- very low hardness (gel)
- outstanding resistance to chemicals
Application
Embedding of electronic components in contact with oils, fuels and solvents.
Processing
Surface preparation
All surfaces must be clean and free of contaminants that will inhibit the cure of SEMICOSIL? 927 F. 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.
Dispensing
Because of the thixotropy (shear thinning effect) SEMICOSIL? 927 F can be dispensed easily with all dispensing equipments.
To eliminate any air introduced during dispensing or trapped under components or devices a vacuum
encapsulation is recommended.
Curing
SEMICOSIL? 927 F works best when cured at 100 °C or more depending on the size and heat sink properties of the components.
Technical data sheet for SEMICOSIL? 927 F / Version: 1.5 / Date of last alteration: 10.11.2014 1 / 2
Temperature
100°C 130°C 150 °C
Curing time, thickness 10 mm
4 h
60 min 30 min
We recommend running preliminary tests to optimize conditions for the particular application. Comprehensive processing instructions are given in our leaflet "Wacker RTV-2 Silicone Rubber - Processing".


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