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Bergger

COT 320

320gsm100% cottonsmoothnatural white

Characteristics

Sizing
internal
Formats
A4, A3, 22x30in, roll
Coating
Smooth, even absorption. Good wet strength. Slightly warm tone compared to Platine.

Process Suitability

CyanotypeExcellent
Platinum PalladiumExcellentPopular choice, consistent results
KallitypeExcellent

Where to Buy

Bergger DirectEU
Bostick & SullivanUS
Process SuppliesUK

Sources

Physical specifications from manufacturer datasheets. Process suitability ratings based on published references and practitioner experience.

Data from: Bergger COT 320 Product Specification[Manufacturer], Platinotype[Authoritative Reference], The Book of Alternative Photographic Processes[Authoritative Reference]
Last verified: Apr 2026Reviewed: Apr 2026Report an errorSuggest an edit
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