Von Roll (Superior Essex)
Historic Swiss specialist in electrical insulation systems, providing high-performance mica tapes, insulating varnishes, and composite structures for power generation and transmission.
Product categories
Pressboard / insulation materials
Related components
Company record
| Company | Von Roll (Superior Essex) |
|---|---|
| Role | PRIMARY_MILL_MANUFACTURER |
| Location | Breitenbach, Solothurn, Switzerland |
| Accessory categories | Pressboard / insulation materials |
| Product family | High-Temperature Transformer Insulation & Precompressed Pressboard |
| Product / Trade names | Samica mica paper, Vetronit laminates, Transformerboard B.3.1 |
| Thermal insulation class | 105°C to 220°C |
| Technical standards | IEC 60641-3-1, IEC 60371 |
| Founded | 1803 |
| Primary evidence citation | Von Roll / Superior Essex official technical handbook |
| Source tier | TIER A |
| Provenance | Sourced — not a product certification · Source: official website · checked 10 Sept 2026 |
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