Electrical Insulation Industry

Silicone resins are an invisible but essential component in many electrical insulation materials and composites. WACKER’s SILRES^® range of heat-stable, electrically insulating and water-repellent binders are used in many consumer goods and their functionality is something we take for granted in our daily lives.
WACKER offers ideal silicone resins for electrically insulating materials and composites in a wide range of consumer goods such as toasters, hairdryers, kettles, dishwashers, washing machines or electric railway vehicles.

Laminates & Composites

SILRES^® silicone resins are key components of composites intended for electrical engineering or structural design applications.

Silicone-resin-bound laminates based on mica, glass fiber or mineral fiber permanently withstand extreme temperatures, yet retain their electrical and water-repellent properties, as well as their high mechanical strength..

SILRES^® silicone resins are ideal for use as binders in the production of preceramics as well as ceramic or sintered molded products based on inorganic matrix materials.

Benefits:

Excellent electrical insulation properties over a wide temperature and frequency range
High heat resistance
Water-repellent and highly resistant to moisture
Flame retardant and no release of toxic vapors in the event of fire
Pyrolysis yields electrically insulating products
Permanent weathering and radiation resistance
Media resistance

Heating Elements

Regardless of whether it's an electric boiler, coffee machine, dishwasher, washing machine or cooker, WACKER silicones are indispensable in ensuring that the heating elements in these appliances function safely.

SILRES^® silicone resins give the fillers in tubular heating elements moisture-repellent properties. Heat-stable silicone rubber compounds from the ELASTOSIL^® series protect the heating element from moisture penetration. In combination, these WACKER products prevent premature corrosion of the heating filament and ensure that the appliances have a long service life.

Benefits:

High heat resistance
Excellent electrical insulation properties
Formation of a durable moisture barrier
Flame retardant
Pyrolysis yields electrically insulating products

Resistors & Capacitors

Protecting resistors and capacitors from overheating and external influences is essential to ensure the safe operation of electrical circuits and electronic components.

The required protective coatings, which are based on mineral fillers typically need heat-resistant, flame retardant, electrically insulating binders such as SILRES^® silicone resins.

For aesthetic purposes, the protective coatings can be finished with an additional silicone resin-based gloss varnish.

Benefits:

High heat resistance
Excellent electrical insulation properties
Pyrolysis yields electrically insulating products
Flame retardant and no release of toxic vapors in the event of fire
Water-repellent and highly resistant to moisture

Mica Tapes

Mica tapes containing silicone resins as a binder exhibit excellent dielectric properties, are flame retardant and extremely resistant to heat. Composite tapes are therefore ideal for insulating electrical conductors which are either safety-relevant or exposed to considerable thermal stress during operation.

Silicon-resin-bound mica tapes thus guarantee both the functional reliability of fire-proof safety cables and the stable operation of high-performance traction motors or generators.

The customized solvent-based formulations in the SILRES^® series enable fast impregnation of the mica paper as well as the support layer, and boost the efficiency of mica tape production due to fast curing. At the same time, the cured binder gives the mica tape the high degree of flexibility and mechanical strength required for automated taping.