 Should I immerse art resin in a water bath before mixing? We do recommend using a warm water bath for your resin and hardener prior to mixing because in general art resin is easier to work with When it's warmer it will for one help get those bubbles out But you should be aware that it will decrease the pot life to some extent the ideal working temperature for art resin is about 75 to 85 degrees Fahrenheit So if you're working in the summer and you may not need that water bath if you're working in the winter You probably need that water bath just make sure that when you put those bottles in there Those lids are on tight because you don't want any water to get in there It'll make the mixture cloudy just something to be aware of