does anyone know how long to let your tough 1500 parts soak in the standard two tub IPA bath? I’ve left my parts in for 7 minutes each, and they still are a little sticky after curing.
We use ultra sonic baths.
3 baths. One dirty, 1 medium dirty, one claen.
3 minuts in each baths.
- 3 min in a bath with US ON.
- Part out/ in the bath 20 times
- Let drip for 20 seconds
- Next bath
The parts come slightly sticky. After 20 min in our high energy UV chamber, the surface is cured and perfeclty smooth.
Part out/in the bath twenty times? I’m confused on that one. What ultra sonic bath are you using/ does it pose a hazard with isopropyl?
We are using 2 ltrs single cell ultra sonic stainless steel machines.
I have done flammability tests on the bath with/ without ultra sound ON, no difference. You’d have to test this for yourself as it is very important to make sure that your configuration does not pose a risk of flash fire.
Instead of agitating the alcohol, we move the parts out/ in the bath. The liquid movement is enough to wash the resin off.