I saw some threads that touched on this, but I need some help.
I'm trying to use the 2.5g paint pot from Harbor Freight to pressure cast resin parts. After setting up the air compressor and pot for a few hours (because parts either broke or didn't fit) I finally was able to try and test the PSI in the pot. I've read that for the best results, I'd need to be around 50 or 60 PSI.
The pot is rated between 30 and 60 psi, but when the gauge reads about 40 PSI, the safety valve opens and doesn't close until the PSI drops to 20. I've turned the t-handle control on the regulator both clockwise and counter clockwise and I can adjust it lower, but not matter what I do, once it hits 40 the valve opens.
Has anyone ever had this problem? I called Harbor Freight but their solution was just to offer me a replacement instead of a fix. I'm afraid that if it's replaced, it'll simply do the same thing again.
I cant afford the more expensive versions from Alumalite or other companies, so if anyone can help make this pressure pot work, I'd be grateful.