Cottrell Paper Company

Country United StatesState New YorkCity Rock City FallsOfficial website ↗

Specialized American manufacturer producing 100% electrical-grade cotton rag paper, kraft paper, and insulating pressboard for transformers and electrical equipment.

Product categories

Pressboard / insulation materials

Related components

Insulation Materials

Company record

CompanyCottrell Paper Company
RolePRIMARY_MILL_MANUFACTURER
LocationRock City Falls, New York, United States
Accessory categoriesPressboard / insulation materials
Product familyElectrical Insulating Papers & Boards
Product / Trade namesCopaco 100% Rag Electrical Paper, Copaco-125, Calendered Insulating Paper
Thermal insulation class105°C (Class A)
Base thickness range0.075 mm – 3.175 mm (3 mil – 125 mil)
Technical standardsASTM D1305, NEMA
Founded1926
Primary evidence citationCottrell Paper official product technical datasheets
Source tierTIER A
ProvenanceSourced — not a product certification · Source: official website · checked 10 Sept 2026

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