All this is further explained here. Besides, can you use an instant pot for resin?
A stove top pressure cooker or Instapot is rated to handle 10 to 15 psi. To get bubble free resin castings you need 40 to 60, depending on the resin manufacturer. I would not want to be around a pot that has been subjected up to 5 times it's rated PSI when it blows.
Additionally, how long do you leave resin in a pressure pot? As for a pressure pot, the resin has to be under pressure the entire time while it is curing. In the case of the super clear resin, this will need to be 12 hours. The compressor may or may not need to be running the entire time.
Also question is, what are pressure pots used for?
Pressure pots are a versatile and durable piece of equipment that can be used for a wide range of applications including spraying polyester, sound deadening material, large two-pack spray jobs such as trucks, buses, boats or any situation that requires more than one litre of product.
Do you have to use a pressure pot for resin casting?
Pressure Pot. A pressure pot is required for bubble-free and air-trap-free resin castings. This is especially critical in creating clear resin castings as trapped air can mar the appearance of a crystal clear casting.
