Barwienie miedzi i mosiądzu
Barwienie miedzi i mosiądzu
Widzę, że można się tutaj wiele dowiedzieć. Dzięki za informacje!
jak chcesz żeby kolory na miedzi nie zblakły po tym procesie tylko termicznym ,to kup w witrażowym sklepie takiego gluta co się nazywa antyoksydant posmaruj i kolory zostają na stałe lakieru nie polecam bo się złuszczy po jakimś czasie.glut to koszt 5 zł
ale nie blakną puki co te kolory. Nawet nie wiedziałem że są takie sklepy, stacjonarne czy internetowe? Przy okazji można sobie robić oksyde do srebra i miedz (czarną) z NaOH (kret może być) i siarki. Chyba że ktoś ma KOH to też może być i siarka, wtedy dostaniemy już ta "sklepową' oksydę.
O dzieki, ale nie blakną puki co te kolory. Nawet nie wiedziałem że są takie sklepy, stacjonarne czy internetowe? Przy okazji można sobie robić oksyde do srebra i miedz (czarną) z NaOH (kret może być) i siarki. Chyba że ktoś ma KOH to też może być i siarka, wtedy dostaniemy już ta "sklepową' oksydę.
Jak pisał kiedyś Tom najwygodniej chemią i jest tego sporo na rynku. W polskich sklepach internetowych widziałem tylko oksydę czarną, brązową i tęczową. Zauważyłem, że te do srebra działają też na miedź. Jak cosik znajdę jeszcze ciekawego w tej kwestii to na pewno się podzielę. Termicznie jest dość trudno ale warto zawsze próbować i eksperymentować.
A tu masz zestaw kolorow patyny do miedzi, srodki chemiczne i jak uzywac. Troche tego jest, jesli za duzo , usuncie z postu albo calego posta albo do zredagowania. Podane sa dwa rodzaje zestawow, do miedzi i do mosiadzu.
1. Light to Dark Brown
Ingredients
Ferric Nitrate... 1/2 tsp [MORE INFO]
Distilled Water... 1 pint
Process
Heat metal and apply liquid. (Red to reddish brown has also been reported using this recipe.)
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2. Brown to Black
Ingredients
Sulfurated Potash grape sized lump (crushed). [MORE INFO]
Distilled Water... 1 pint
Process
Hot or cold process. Use fresh solution each time.
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3. Blackish Brown
Ingredients
Ferric Nitrate... 2 oz [MORE INFO]
Distilled Water... 1 pint
Sulfurated Potash... 1/4 oz [MORE INFO]
Process
Hot process. Mix in the order given.
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4. Florentine Brown
Ingredients
Ferric Chloride... 1 tsp [MORE INFO]
Ferric Nitrate... 1/2 tsp [MORE INFO]
Distilled Water... 1 pint
Process
This old Italian formula produces a rich brown patina.
Apply evenly with a brush, sponge, or sprayer and let it dry.
When a light brown rust color appears rinse well with cool water.
Dry with newspaper - it is very important to use newspaper.
You may want to use a slightly damp paper.
Burnish the surface with steel wool or wire brushes. Leave over night
Repeat the process for darker result.
When finished, wax over the patina to darken and set the color.
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5. Antique Green
Ingredients
Ammonium Chloride... 1/3 oz [MORE INFO]
Cupric Sulfate... 3 oz [MORE INFO]
Distilled Water... 1 quart
Process
Hot process. Solution hot (180 to 190°F), metal hot (200°F), cold wash water applied after metal has
cooled to around 100°F.
Wash solution over metal surface, let dry, then wash piece in cool water.
Repeat until color develops.
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6. Basic Green
Ingredients
Cupric Nitrate... 1 tsp [MORE INFO]
Distilled Water... 1 pint
Process
Hot process, semi-transparent patina. Heat metal and apply a fresh mixture for each coloring.
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7. Blue Green
Ingredients
Sodium Thiosulfate... 1/4 oz [MORE INFO]
Ferric Nitrate... 2 oz [MORE INFO]
Distilled Water... 1 quart
Process
Hot process. Solution hot (180 to 190°F), metal hot (200°F), cold wash water applied after metal has
cooled to around 100°F.
Wash solution over metal surface, let dry, then wash piece in cool water.
Repeat until color develops.
For Yellow Green, dip in dilute nitric acid, then wash and dry.
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8. Cold Process Green
Ingredients
Cupric Nitrate... 40 gm [MORE INFO]
Ammonium Chloride... 40 gm [MORE INFO]
Calcium Chloride... 40 gm [MORE INFO]
Distilled Water to make 1 liter
Process
A cold process, opaque patina. Frog green results after several applications, 1/2 hour intervals.
Color is not satisfactory alone. Combines well with most brown and black cold process patinas.
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9. Light Green
Ingredients
Ammonium Chloride... 16 units [MORE INFO]
Sodium Chloride... 16 units [MORE INFO]
Cupric Sulfate (optional)... 16 units [MORE INFO]
Ammonium Hydroxide... 16 units [MORE INFO]
Process
A cold process, opaque patina which should be applied at 12 hour intervals for several days.
For deeper green add 16 units of cupric sulfate.
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10. Green
Ingredients
Sodium Thiosulfate... 8 oz. [MORE INFO]
Lead Acetate... 1-3 oz. [MORE INFO]
Distilled Water... 1 gal.
Process
A cold process that is said to work well on brass.
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11. Green - Blue (Flemish)
Ingredients
Sodium Thiosulfate... 8 oz. [MORE INFO]
Lead Acetate... 1-3 oz. [MORE INFO]
Distilled Water... 1 gal.
Process
Temperature at 170 to 190°F, a hot process especially for brass.
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12. Purple to Light Green
Ingredients
Sodium Chloride... 5 parts [MORE INFO]
Ammonium Hydroxide... 4 parts [MORE INFO]
Process
Parts by weight. Early stages of this recipe produce purple.
Additional applications and chemical action turn the metal light green.
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13. Transparent Blue
Ingredients
Sodium Thiosulfate... 60 gm [MORE INFO]
Nitric Acid Concentrated... 4 gm [MORE INFO]
Distilled Water... 1 quart
Process
A transparent, dip process patina. A preservative such as paste wax or polyurethane is necessary
May produce a grey blue when tap water is used.
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14. Blue
Ingredients
Sulfurated Potash... 15 gm [MORE INFO]
Ammonium Chloride... 200 gm [MORE INFO]
Distilled Water 1 quart
Process
Brush onto surface.
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15. Straw Yellow
Ingredients
Ferric Nitrate... 1/2 tsp [MORE INFO]
Distilled Water... 1/2 pint
Process
Heat metal and apply hot liquid.
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16. Golden Yellow
Ingredients
Sodium Thiosulfate... 1/4 oz [MORE INFO]
Ferric Nitrate... 2 oz [MORE INFO]
Distilled Water 1 quart
Process
Heat solution to a boil. Dip.
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17. Deep Rust Red
Ingredients
Cupric Nitrate... 48 grains [MORE INFO]
Ammonium Chloride... 48 grains [MORE INFO]
Calcium Chloride... 20 grains [MORE INFO]
Cupric Sulfate... 10 grains [MORE INFO]
Oxalic Acid... 10 grains [MORE INFO]
Distilled Water... 4 oz
Nitric Acid 10%
Process
Brush to surface for color. Then dip into diluted (1 acid:8 water) Nitric acid for 1/2 hour, remove,
wash and dry.
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18. Purple
Ingredients
Sodium Chloride... 5 parts [MORE INFO]
Ammonium Hydroxide... 4 parts [MORE INFO]
Ammonium Chloride... 5 parts [MORE INFO]
Glacial Acetic Acid... 4 parts [MORE INFO]
Distilled Water... 32 parts
Process
Parts by weight. Brush to surface.
Back to Index
19. Antique White
Ingredients
Bismuth Nitrate... 2 tsp. [MORE INFO]
Distilled Water... 8 oz.
Process
Heat metal and apply liquid. Variations of this formula add a pinch of Sulfurated Potash,
Ferric Nitrate, or Cupric Nitrate for a slight coloring effect.
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Formulas Suggested for Specific Metals.
20. Red - semi-matt (for Copper & Copper Plate)
Ingredients
(A) Cupric Sulfate... 25 gm [MORE INFO]
Distilled Water... 1L
(B) Ammonium Chloride... 0.5 gm [MORE INFO]
Process
Boil immersion (A) 15 min.
Boil immersion (A)+(B) 10 min.
Immerse in boiling cupric sulfate solution about 15 min. or until color well developed.
Remove to hot water while ammonium chloride is added to the cupric sulfate solution.
Then immerse about 10 min. Remove and wash in hot water. Dry and finish.
Important note: In general, chemically induced finishes are unsuitable for use on articles to
be used with food.
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21. Dull Pink (for Copper & Copper Plate)
Ingredients
Cupric Nitrate... 1 tsp [MORE INFO]
Nitric Acid 10% ... 100 ml [MORE INFO]
Distilled Water... 1L
Process
Hot immersion - 5 min.
Immerse in hot solution (140-158°F, 60-70°C) which etches surface. Remove after 5 min., wash in
warm water and air dry. Wax finish.
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22. Red-Purple Satin (for Cast Bronze and Brass)
Ingredients
Cupric Sulfate... 25 gm [MORE INFO]
Distilled Water... 1L
Process
Boiling immersion (10 to 30 min.)
Immerse in boiling solution. A reddish orange color begins after 2-3 min. and deepens with
continued immersion. When a reddish-purple color is attained from 10 to 30 min. remove and
wash well in hot water. Dry and wax finish if choose.
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23. Orange-Brown (for Cast Bronze and Brass)
Ingredients
Cupric Acetate... 25 gm [MORE INFO]
Cupric Sulfate... 19 gm [MORE INFO]
Distilled Water... 1L
Process
Heat immersion (15 min)
Immerse in hot solution (176°F, 80°C). Color develops gradually and remove after 15 min.
Wash and dry wax finish if choose.
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24. Black - semi-gloss (for Cast Bronze and Brass)
Ingredients
Sodium Thiosulfate... 50 gm [MORE INFO]
Ferric Nitrate... 12.5 gm [MORE INFO]
Distilled Water... 1L
Process
Hot immersion (20 min.)
Immerse in hot solution (140-158°F, 60-70°C). In one minute the surface is colored blue-purple.
This recedes to a brown color, then changing to gray. After 20 min., remove, washing in hot water
and dry in air. Handle as little as possible.
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25. Blue Green (for Cast Bronze and Brass)
Ingredients
Cupric Sulfate... 20 gm [MORE INFO]
Cupric Acetate... 20 gm [MORE INFO]
Ammonium Chloride... 10 gm [MORE INFO]
Acetic Acid (6% soln.)... to form a paste. [MORE INFO]
Process
Applied paste - several days.
Using a mortar and pestle, grind ingredients to a creamy paste with the acetic acid.
Apply paste to object with a soft brush giving a thick coating. Dry for one day.
Wash dry residue away under cold water using a soft brush.
Apply a thin layer of paste with a soft cloth and dry again for one day.
Wash off residue again. Apply thin layer and dry until good variegated patina is achieved.
When treatment completed, dry thoroughly. May be waxed.
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26. Golden Yellow (for Cast Bronze and Brass)
Ingredients
Cupric Sulfate... 50 gm [MORE INFO]
Ferrous Sulfate... 5 gm [MORE INFO]
Zinc Sulfate... 5 gm [MORE INFO]
Potassium Permanganate... 2.5 gm
Distilled Water... 1L
Process
Boiling immersion (15 min.)
Immerse object in boiling solution. A dark brown layer forms on surface after 1-2 min.
Remove object and bristle-brush under hot water. Re-immerse and repeat process after
2 min. if necessary. Immerse again to approximately 15 min. remove and wash thoroughly
in hot water using a bristle brush if necessary. Dry and wax finish of choice.
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27. Blue Green - semi-matt (for Cast Bronze and Brass)
Ingredients
Cupric Acetate... 20 gm [MORE INFO]
Ammonium Chloride... 35 gm [MORE INFO]
Distilled Water... 1 L
Process
Applied liquid.
With mortar and pestle, grind ingredients with a little water. Then add to remaining water.
Dab and wipe on sparingly with soft cloth, to leave an evenly moist surface. Allow to dry in air.
Repeat procedure once a day for several days as color develops. Dry for several days during
which time the patina develops further. When there is no more surface change, wax to finish.
The most important part is to let it dry throughly between applications and up to two weeks
before waxing.
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28. Brown - Greenish Yellow (for Cast Bronze and Brass)
Ingredients
Cupric Nitrate... 80 gm [MORE INFO]
Nitric Acid 10% ... 100 ml [MORE INFO]
Distilled Water... 1 L
Process
Immerse in hot solution (140-158°F, 60-70°C) to cause etching of the surface and gradual darkening.
After 5 minutes remove and wash in warm water. Allow to air dry. When dry, wax finish.
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29. Reddish Brown (For Cast Bronze and Brass)
Ingredients
Cupric Sulfate... 125 gm [MORE INFO]
Sodium Acetate... 12.5 gm [MORE INFO]
Distilled Water... 1 L
Process
Boiling immersion (10-15 min)
The color will develop after 10 - 15 min. Remove and wash in hot water. Dry thoroughly, wax finish.
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30. Black (For Cast Bronze and Brass)
Ingredients
Sodium Thiosulfate... 6.25 gm [MORE INFO]
Ferric Nitrate... 50 gm [MORE INFO]
Distilled Water... 1 L
Process
Heat immersion - 1 minute.
When article is immersed in hot solution (120-140°F, 50-60°C) a succession of colors is produced.
It changes to a purplish color after about 45 seconds. The color darkens quickly and the article is
removed after about 1 minute. Wash thoroughly in hot water and air dry, wax finish.
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31. Variegated Gold-Brown (For Cast Bronze and Brass)
Ingredients
Potassium Permanganate... 10 gm
Distilled Water... 1 L
Process
Hot immersion (3-5 min.)
Immerse in hot solution (194°F, 90°C). A golden lustre develops within one minute and becomes
more intense. When lustre color is fully developed in 3 - 5 minutes, remove and wash in hot water,
which is also a cooling process. Finally, wash article in cold water. Dry carefully first by blotting
excess moisture with absorbant tissue paper and then air dry. Wax finish when dry.
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32. Red (For Cast Bronze and Brass)
Ingredients
Cupric Nitrate... 8 oz [MORE INFO]
Oxalic Acid... 8 oz [MORE INFO]
Distilled Water... 1 gal
Process
Heat metal and apply hot liquid
