Ir På Bækken? Hjælp Søges.


frogspoon
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Ir eller patina kan påføres kunstgenstande af kobber ved en kemisk behandling.

 

Der er 2 muligheder for kemisk behandling, som fremmer dannelsen af ir:

 

Vand + saltsyre + salt (natirumclorid)

Vand + saltsyre + ammoniumclorid + ammoniumacetat

Opløsningen påføres kobberet 1-2 gange pr. dag indtil det ønskede resultat er opnået. Der går et døgn, før man ser virkningen.

 

NB: Vær opmærksom på, at opløsningen er kraftigt ætsende. Husk egnede personlige værnemidler som beskyttelsesdragt, nitrilgummihandsker og beskyttelsesbriller eller ansigtsskærm.

 

( copy paste, fra nordsjø guide )

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tror nu dette er et forsøg værd:

Instructions
    • 1

      Fill a spray bottle three-quarters full with hot water. Add in baking soda by the teaspoon, shaking the bottle to dissolve. Keep adding in baking soda until it stops combining with the water and merely floats on the surface.

    • 2

      Wipe the brass object with a damp cloth to remove any dirt or particles. Spray the object with the patina mixture. Apply an even coating and allow to dry for one hour in a humid place.

    • 3

      Spray on a second coat of the patina. Let sit overnight in a humid place for the patina to develop. Display or use object as desired.

 

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