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Fakenham, England, NR21 7AE
United Kingdom

07549051224

Violet Bronze Patination

Patination

Violet Bronze Patination

wayne mckinney

 
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'Violent Violet' by Laura Such

 

Violet Bronze Patination

 

Description

Very strong intense coloured bronze patina. We have tried a range of violet pigments and have found that Manganese Violet Pigment adheres very well to the bronze and doesn't seem to change its properties when heated. The key to this patination is to be very subtle in your application of the main colour, the surface can easily become overloaded with pigment and tends to become unstable and turn matt. 


Metal Preparation

Silicon bronze sanded to a even 120 grit
 


Base Coat Chemical

 M20 / antiquing solution
 

Base Coat Application

Warm bronze very gently, apply weak solution of basecoat. You want the bronze to change colour gradually, continue applying solution to develop a good even colour. Rinse the surface with water and a brush, this removes some of the residue and helps to neutralise the chemical reaction. Heat the bronze until a fine dusty film appears on the surface, remove this with 120 grit scotch brite pad or other appropriate soft abrasive. 

 


1st Colouring Coat chemical solution

Water ----- 250 ml
Medium Copper Nitrate solution ------ 2 teaspoons
Additional Fixative ----- Weak sodium silicate solution

 

1st Colourcoat Application

Heat the bronze evenly, the solution should just sizzle and evaporate away as you apply it with a natural haired paint brush. Take small amounts of solution into brush at each application, as the brush warms up it natural sucks the solution up into the brush. The oxide that forms on the surface of the bronze should develop into a blue green colour. The oxide is delicate and can easily be over heated and turn yellow, so carefully continue to heat bronze and continue with adding the solution until you get a variegated but even patterning across the surface.  

 


2nd Colouring Coat Chemical Solution

Weak Copper Nitrate solution ------ 1 teaspoon + 250 ml water
Manganese Violet Pigment ----- 1 teaspoon
Additional Fixative ----- Weak sodium silicate solution

 

2nd Colourcoat Application

Heat the bronze evenly, the solution should just sizzle and evaporate away as you apply it with a natural haired paint brush. Use a small brush to stir the mixture, this keeps the fixative and pigment evenly mixed in the solution. Take small amounts of solution into brush at each application, as the brush warms up it naturally sucks the solution up into the brush. The oxide pigment mix that forms on the surface of the bronze should develop into a slightly transparent muted violet colour. The combination of oxide and pigment should adhere well to the heated bronze surface, carefully continue to heat the bronze and apply the solution until you get a variegated pattern of colour with the first coat visible in the final patterning across the surface.  



Sealing Solution

Sculpt Nouveau Smart Coat - 1K Polymer Sealant


Application

When the bronze is at room temperature, we use soft cloth or brush to apply 3 coats, letting them fully dry between applications. 

Highlighting

To add additional colour to highlight areas, we mix a small amount of pigment with a small amount of sealant and use a sponge or brush to add this mixture.

Darkening Shadowing

To create shadows or to darken areas we use a graphite wax, this is thinned down with a clear wax to create a translucent paste. This is applied both under final wax layers or over the final wax layers.


Final Wax layers

We use renassiance wax for the final waxing. Its applied with a soft brush in a very thin layer, left for 10 mins and buffed to a hard finish. We add three or four layers, with the final layer buffed to the final finish.