For the production of various colorings of gold in fire gilding, the respective places are frequently covered with so-called gilders' wax. These consist of mixtures of various chemicals which have an etching action in the red heat upon the bronze mass, thus causing roughness of unequal depth, as well as through the fact that the composition of the bronze is changed somewhat on the surface, a relief of the gold color being effected in consequence of these two circumstances. The gilding wax is prepared by melting together the finely powdered chemicals with wax according to the following recipes:

 

I

II

III

IV

V

 

.. 32

32

32

96

36

 

.. 3

24

18

48

18

 

.. 2

4

18

32

18

 

.. 2

4

 

.

2

1

3

 

.

4

6

20

8

 

.

32

18

 

.

1

6