For electrical insulation:

• VPI tapes (Vacuum Pressure Impregnation)
• RR tapes (Resin Rich)
• Conductor insulation tapes
• Mica mastic

For thermal insulation:

• Mica tapes for fire-resistant cables
• Collector rings and gaskets
• Pressed mica sheets
• Mica tubes

Mica tapes for electrical insulation

Von Roll uses two types of mica, phlogopite and muscovite, mainly in:

• Electrical and thermal insulation of electrical machines
• Thermal insulation of equipment that is subject to extremely high temperatures, such as induction ovens
• Insulation of cable for fire resistance

Corona protection

• Conductive and semi-conductive tapes
• Conductive and semi-conductive varnishes
• Conductive mastic
• Conductive sheets and ripple springs 

Von Roll is a leading company in the field of corona protection for electrical high-voltage machines. Electrical stress control measures are an essential component of any high-voltage machine. 

Impregnation

• Solvent based varnishes
• Solventless resins
• Solvent free resins
• Waterbased varnishes

Potting

• 2k Epoxy
• 2k Polyurethane
• 2k Polybutadiene

Coating

• Solvent based varnishes
• Water based varnishes

We offer a wide range of impregnation resins for high- and low-voltage applications, potting resins, casting resins, as well as encapsulating and conformal coatings.

Rectangular wires

• Enameled rectangular wires
• Yarn-covered rectangular wires
• Mica-covered rectangular wires
• Polyimide-covered rectangular wires
• Other rectangular wires

Round wires

• Enameled round wires
• Glass fibre-covered round wires
• Mica-insulated round wires
• Polyimide-insulated round wires
• Other round wires

Litz wires

• High-frequency litz wires
• Round litz wires
• Rectangular litz wires

Copper wire conductors

Since decades Von Roll offers a variety of copper conductors

Composites

• Prepregs
• Low-pressure laminates
• High-pressure laminates
• Tubes
• Long parts and U&L profiles

Von Roll provides a comprehensive spectrum of semi-finished and machined composite laminated products for electrotechnical and industrial applications. Typical applications include electrical insulation, paper machines, medical equipment, pumps, pallets for PCB soldering, electrical testing and ballistic and thermal protection.

Machined parts

• Slides and vanes
• Threaded rods and screws
• Slot insulation parts
• Vacuum molded parts
• Stamped parts

Our large range of modern equipment allows us to meet any customer requirements.

Flexible laminates

• Flexible Laminates
• Banding tapes

The high quality of our flexible materials and laminated products is a result of the dedicated work and development of our experienced R&D team.

Auxiliary materials

• Consolidation materials
• Glass ropes, cords and sleeves
• Protection tapes
• Separating foils
• Shrinking tapes

Braided products with cords and sleeves

Auxiliary products as stack consolidation materials, glass cords, ropes, protection - , preparation - and shrinking tapes with specific properties complete our product portfolio for entire insulation systems.