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Jæger Justnæs' black powder solvent efficiently dissolve powder fouling and residue. The concentrate (50ml) is mixed with 1.45 litre water and gives 1.5 litre solvent.
Does not contain petroleum-based products or emulsifying agent and will separate after a while. Lightly shake the solvent before use.
Tips: A small amount of vegetable cooking oil may be added to reduce foam. Methylated spirit can be added in cold weather.