sochin wrote:smokepl wrote:Hi
I was wondering when you microwave the emerald (3 times per 2.50 or 3 minutes) is your water boiling or not? when I do 2.30 minutes, last 10 seconds my water is boiling. Is it better to boil the water or not? also does it have to cool by itself? or can I mix cold water slowly to speed up the process. Dry curing versus curing in water will make different? what kind of process or reaction occurs between these two? Thank you for all replays. Very appreciate any help.
Microwaves vary in strength and the volume of the material being heated will also vary the time/temperature again I am guessing.
As jewelermdt wrote it is the soaking in the heat that helps cure the resin. That said water boils at about 100c and cools quite rapidly.
That is why I prefer to use paraffin oil, it gets a lot hotter (way before boiling) and holds the heat for longer. With paraffin oil you need to keep the temperature under it`s flash point which is about 150c IIRC but do your own homework if you decide to try it. It will not boil till 300c but you run the risk of fire after 150.
I use a food thermometer so I know what temperatures I am exposing the resin to and in particular how hot the parrafin oil is getting for safety. You only need to do this initially until you get the times sorted for your microwave`s strength. I also use it to check my slurry temperature and vulcaniser.
Thank you Sochin.
I read somewhere your post, that you are changing the paraffin oil every 5th time is that correct? Does paraffin oil create any fumes? which is harmful for breathing? Have you heat more than 150? or always below that?. What do you thin, this one should work? https://www.amazon.com/Gallon-Paraffin- ... +oil&psc=1 How long do you wait between microwaving, until save to touch? I will try paraffin oil for sure. I just have to buy extra microwave because I don`t think it is save to use the one I use for food. Thanks for helping.