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Shellac Calculator — French Polish Ratios

Calculate shellac flake and methylated spirit ratios for French polishing, sealing and finishing.

Concentration (1-3 is typical)

Total mixed shellac volume

Colour and wax content

Affects application guidance

How We Calculate This

A pound cut uses the ratio of pounds of shellac per US gallon of solvent.

Metric conversion

1 pound cut = 120g of shellac flakes per litre of methylated spirit.

Flakes (g) = Pound cut x 120 x Volume (litres)

Frequently Asked Questions

Last updated: March 2026

All calculations are estimates. Always verify measurements and material quantities before cutting or purchasing.