Despues de colocar el modelo y antes de cubrirlo con el resto del hule,debemos llevar bricar el hule con tqlco,procurando NO tocar el modelos.Esto vá ayudar abrir las 2 partes del n tener que cortarlo.Una vez vulcanizado el molde,se deja unos 10 mtos mas en la plancha a fin de prevenir un buen vulcanizado.A contnuacion el molde se ahoga en petroleo durante 24 hs.el mold se incha ampliando el grabado asta 500 veces,despues con parafina obtenemos una copia mas grande. Proceso "jonapru"
The “no-shrink” pink is slightly more expensive than the gold. It saves me say 50 cents a mold to pair it with the gold. That can add up if you are doing a lot of molds. I like the “no-shrink” pink because if you can accurately get your temperatures right when vulcanizing there is less shrinkage loss from your original model than other rubber types. There are so many different types of rubber on the market these days that all have different properties. Try some out and see what works best for how you work.
Examples of primitive casting date back to somewhere near 4000 BC. The first signs of lost wax casting is in about 2500 BC. The use of rubber molds, I am really not sure of the dates. I will do some research and let you know.
Despues de colocar el modelo y antes de cubrirlo con el resto del hule,debemos llevar bricar el hule con tqlco,procurando NO tocar el modelos.Esto vá ayudar abrir las 2 partes del n tener que cortarlo.Una vez vulcanizado el molde,se deja unos 10 mtos mas en la plancha a fin de prevenir un buen vulcanizado.A contnuacion el molde se ahoga en petroleo durante 24 hs.el mold se incha ampliando el grabado asta 500 veces,despues con parafina obtenemos una copia mas grande.
Proceso "jonapru"
Why dont you use all the pink rubber in the mold? Wich benefit the gold has?
The Castaldo gold is less expensive than the pink. So it is just a cost effective method if you’re making a lot of molds.
@@strataartstudios3826 thanks for answerme. If both cost the same, would you always wear pink? Is much better?
The “no-shrink” pink is slightly more expensive than the gold. It saves me say 50 cents a mold to pair it with the gold. That can add up if you are doing a lot of molds. I like the “no-shrink” pink because if you can accurately get your temperatures right when vulcanizing there is less shrinkage loss from your original model than other rubber types. There are so many different types of rubber on the market these days that all have different properties. Try some out and see what works best for how you work.
@@strataartstudios3826 thank you very much! And sorry for my poor english, im from uruguay 😊
No problem at all. Happy to help.
I have no quip to make about this one. So other then improvements in materials, how old would this method be?
Examples of primitive casting date back to somewhere near 4000 BC. The first signs of lost wax casting is in about 2500 BC. The use of rubber molds, I am really not sure of the dates. I will do some research and let you know.