Stone mold making using pvc silicon please help and guide!

[Raj Sharma]

Hello I am interested in mold making for stones, In China I saw them processing pvc silicon using a jacketed reactor and pouring it directly on open cast stone in a box with using extruded or any other complex processing.

can you help and guide!

[Nil admirari]

Hydroxyl terminated polydimethylsiloxane CAS 70131-67-8, EC: 615-070-3

Molecular weight 30000.

 

[Raj Sharma]

What you are saying is a sealant! I want to make rubberised pvc molds for casting stones in concrete!

its is somewhat similar to formoplast

But thanks for taking time to check the question

Got what you are trying to say! But is this silicon a single component or any curing agent will be required to use with it!

[Raj Sharma]

But the problem with silicon is that they are very expensive and not alkali resistant