Development and testers

As a method of adding texture and antiquing the zip, i experimented by melting wax and pouring it over silicone, quickly dabbing with an dry paint brush, I would do this on the insides of the silicone moulds, and once cast, could easily melt the wax out of the final casts using a lighter giving me an varied texture through out,
This small experiment allowed me to also become familiar with the moulding process.

This is the effects that were created using this method. I think they will be suitable for this purpose. Another method to achieve this desired effect was to dremal in the master, to create the surface wear. I chose not to do this as I wanted to create a variety of finish effects, and wanted each cast to vary in texture.

To create a brass effect on chemi wood, i experimented by coating in thick black paint, and sprinkling brass metal powder, between the layers of paint. Once dry sanded.







Here is the result when sanded ( bottom half) i used copper powder for this tester. this method worked well, and if i have enough time, i would like to apply this finish to my master model.







This image shows the resin tests i did to match the color of the original zip. The best result i found was

20g brass
50g poly
1g catalyst

I will use this ratio for my final.