Ok, so, if I am reading this correctly - you are using paraffin blend melt wax with a mold and want a matte finish. If so, you can freeze your molds and then pour your wax. This will give a frosty look. Might not be what you are looking for but they definitely won't be shinny. You can experiment using hot and cool wax which will also give different textures. Just remember what you do as slight variations in temp will change the look. Also, when pouring do so quickly as ever little pause you will get lines. Which can look cool but probably not what you are after. The other trick would be using a cool water bath. But only if the hot wax breaks through the cold barrier. If you use a cool water bath with hot wax in a warm mold they will be shinny, so don't do that. I can explain this more if you need
Best, Lyschel